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DISULFIRAM

Chemical Identification
CAS #	97-77-8
Formula	C₁₀H₂₀N₂S₄
Synonyms	Antabuse; bis(Diethylthiocarbamoyl) disulfide; tetraethylthiuram disulfide; Ro-Sulfiram; TETD

Physical Properties
Physical description	White, yellowish, or light-gray powder with a slight odor.
Boiling point	243°F	Molecular weight	296.6
Freezing point/melting point	158°F	Vapor pressure	0 mmHg
Flash point		Vapor density
Specific gravity	1.3	Ionization potential
Lower explosive limit (LEL)		Upper explosive limit (UEL)
NFPA health rating	2	NFPA fire rating	1
NFPA reactivity rating	0	NFPA special instruction
Vapor hazard ratio (VHR)
Historical exceedance percentage
Target organs

Monitoring Methods Used by OSHA
Analyte code (IMIS no.)
Sampling group
Sampler/Sampling media
Sampling time^*
Sampling volume (TWA)^*
Sampling flow rate (TWA)^*
Sampling volume (STEL/Peak/C)^*
Sampling flow rate (STEL/Peak/C)^*
Analytical method instruments
Method reference
Notes
Special requirements

^* All sampling instructions above are recommended guidelines for OSHA Compliance Safety and Health Officers (CSHOs), please see the corresponding OSHA method reference for complete details.

Bulk/Wipe Method
Wipe Sampler/Sampling media
Bulk Method

On-Site Screening Techniques
Device
Model/Type
Sampling information (see manufacturer instructions)

**Exposure Limits**
OSHA PEL 8-hour TWA (ST) STEL (C) Ceiling Peak		NIOSH REL Up to 10-hour TWA (ST) STEL (C) Ceiling		ACGIH TLV© 8-hour TWA (ST) STEL (C) Ceiling		CAL/OSHA PEL 8-hour TWA (ST) STEL (C) Ceiling Peak
PEL-TWA		REL-TWA	2 mg/m³	TLV-TWA	2 mg/m³ [1979]	PEL-TWA	2 mg/m³
PEL-STEL		REL-STEL		TLV-STEL		PEL-STEL
PEL-C		REL-C		TLV-C		PEL-C
Skin notation	NA	Skin notation	N	Skin notation	N	Skin notation	N
Notes: Not established		Notes:		Notes:		Notes:
Health factors: See NIH-NLM PubChem.		IDLH
Carcinogenic classifications: TLV-A4, IARC-3		Notes:
AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:

Additional Resources and Literature References

NOAA: CAMEO Chemicals - Tetraethylthiuram disulfide

NIOSH: Pocket Guide to Chemical Hazards - Disulfiram

Literature References

ACGIH: Documentation of the Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) - Disulfiram. See annual publication for most recent information.

Last Updated Date : 12/28/2020

4,4'-THIOBIS(6-TERT-BUTYL-M-CRESOL)†

Chemical Identification
CAS #	96-69-5
Formula	C₂₂H₃₀O₂S
Synonyms	4,4'-thiobis(2-(1,1-dimethylethyl)-5-methyl-phenol; santox; bis(4-hydroxy-5-tert-butyl-2-methylphenyl) sulfide; Santonox

Physical Properties
Physical description	Light-gray to tan powder with a slightly aromatic odor.
Boiling point		Molecular weight	358.6
Freezing point/melting point	302°F	Vapor pressure	0.0000006 mmHg
Flash point	420°F	Vapor density
Specific gravity	1.10	Ionization potential
Lower explosive limit (LEL)		Upper explosive limit (UEL)
NFPA health rating		NFPA fire rating
NFPA reactivity rating		NFPA special instruction
Vapor hazard ratio (VHR)
Historical exceedance percentage
Target organs

Monitoring Methods Used by OSHA
Analyte code (IMIS no.)	2422 (total); request using analyte code 9135	T165 (resp); request using analyte code 9130
Sampling group
Sampler/Sampling media	Tared low-ash 37 mm PVC filter, 5 microns [SLTC108]	Tared low-ash 37 mm PVC filter, 5 microns, preceded by 10 mm nylon Dorr-Oliver cyclone for respirable samples. [SLTC108]
Sampling time^*	240-480 min	240-480 min
Sampling volume (TWA)^*	960 L	816 L
Sampling flow rate (TWA)^*	2 L/min	1.7 L/min ±5%
Sampling volume (STEL/Peak/C)^*	408-960 L	408-816 L
Sampling flow rate (STEL/Peak/C)^*	2 L/min	1.7 L/min ±5%
Analytical method instruments	Gravimetric	Gravimetric
Method reference	OSHA PV2121 (partially validated)	OSHA PV2121 (partially validated)
Notes	If the net weight of the sample yields a concentration below the PEL after considering the associated SAE , the SLTC will perform no further work on the sample and the sample air concentration will be reported as the calculated gravimetric air concentration. If the net weight corresponds to an amount greater than the PEL value after considering the associated SAE, the sample may be analyzed for the applicable component and appropriate results will be reported.	If the filter is not overloaded, samples can be collected up to an 8-hour period. If the net weight of the sample yields a concentration below the PEL after considering the associated SAE , the SLTC will perform no further work on the sample and the sample air concentration will be reported as the calculated gravimetric air concentration. If the net weight corresponds to an amount greater than the PEL value after considering the associated SAE, the sample may be analyzed for the applicable component and appropriate results will be reported.
Special requirements	FOR TOTAL DUST SAMPLES, DO NOT USE A CYCLONE!!

^* All sampling instructions above are recommended guidelines for OSHA Compliance Safety and Health Officers (CSHOs), please see the corresponding OSHA method reference for complete details.

Bulk/Wipe Method
Wipe Sampler/Sampling media
Bulk Method

On-Site Screening Techniques
Device
Model/Type
Sampling information (see manufacturer instructions)

**Exposure Limits**
OSHA PEL 8-hour TWA (ST) STEL (C) Ceiling Peak		NIOSH REL Up to 10-hour TWA (ST) STEL (C) Ceiling		ACGIH TLV© 8-hour TWA (ST) STEL (C) Ceiling		CAL/OSHA PEL 8-hour TWA (ST) STEL (C) Ceiling Peak
PEL-TWA	15 mg/m³ (total dust), 5 mg/m³ (respirable fraction)	REL-TWA	10 mg/m³ (total), 5 mg/m³ (resp)	TLV-TWA	1 mg/m³ (inhalable particulate matter) [2010]	PEL-TWA	10 mg/m³ (total dust), 5 mg/m³ (respirable fraction)
PEL-STEL		REL-STEL		TLV-STEL		PEL-STEL
PEL-C		REL-C		TLV-C		PEL-C
Skin notation	N	Skin notation	N	Skin notation	N	Skin notation	N
Notes: See 29 CFR 1910.1000 Table Z-1.		Notes:		Notes:		Notes: See footnote [n].
Health factors: See NIH-NLM PubChem.		IDLH
Carcinogenic classifications: TLV-A4		Notes:
AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:

Additional Resources and Literature References

NOAA: CAMEO Chemicals - 4,4'-Thiobis(6-tert-butyl-m-cresol)

NIOSH: Pocket Guide to Chemical Hazards - 4,4'-Thiobis(6-tert-butyl-m-cresol)

Literature References

ACGIH: Documentation of the Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) - 4,4'-Thiobis(6-tert-butyl-m-cresol). See annual publication for most recent information.

Last Updated Date : 12/15/2020

ETHYLENE THIOUREA

Chemical Identification
CAS #	96-45-7
Formula	C₃H₆N₂S
Synonyms	1,3-ethylene-2-thiourea; N,N-ethylenethiourea; ETU; 2-imidazolidine-2-thione; 2-mercaptoimidazoline; 2-imidazolidinethione

Physical Properties
Physical description	White to pale-green, crystalline solid with a faint, amine odor.
Boiling point	446-595°F	Molecular weight	102.2
Freezing point/melting point	392°F	Vapor pressure	16 mmHg
Flash point	486°F	Vapor density
Specific gravity		Ionization potential	8.15 eV
Lower explosive limit (LEL)		Upper explosive limit (UEL)
NFPA health rating	2	NFPA fire rating	2
NFPA reactivity rating	1	NFPA special instruction
Vapor hazard ratio (VHR)
Historical exceedance percentage
Target organs

Monitoring Methods Used by OSHA
Analyte code (IMIS no.)	1159
Sampling group
Sampler/Sampling media	Four-piece sampling cassette containing GFFs (37 mm) in series [SKC 225-724]
Sampling time^*	240 min
Sampling volume (TWA)^*	480 L
Sampling flow rate (TWA)^*	2 L/min
Sampling volume (STEL/Peak/C)^*
Sampling flow rate (STEL/Peak/C)^*
Analytical method instruments	HPLC
Method reference	OSHA 95 (fully validated)
Notes	Sample open-faced!!
Special requirements

^* All sampling instructions above are recommended guidelines for OSHA Compliance Safety and Health Officers (CSHOs), please see the corresponding OSHA method reference for complete details.

Bulk/Wipe Method
Wipe Sampler/Sampling media
Bulk Method

On-Site Screening Techniques
Device
Model/Type
Sampling information (see manufacturer instructions)

**Exposure Limits**
OSHA PEL 8-hour TWA (ST) STEL (C) Ceiling Peak		NIOSH REL Up to 10-hour TWA (ST) STEL (C) Ceiling		ACGIH TLV© 8-hour TWA (ST) STEL (C) Ceiling		CAL/OSHA PEL 8-hour TWA (ST) STEL (C) Ceiling Peak
PEL-TWA		REL-TWA		TLV-TWA		PEL-TWA
PEL-STEL		REL-STEL		TLV-STEL		PEL-STEL
PEL-C		REL-C		TLV-C		PEL-C
Skin notation	NA	Skin notation	N	Skin notation	NA	Skin notation	NA
Notes: Not established		Notes: CARCINOGEN (Ca): REDUCE EXPOSURE TO LOWEST FEASIBLE CONCENTRATION. See Appendix A. Use encapsulated form.		Notes: Not established		Notes: Not established
Health factors: See NIH-NLM PubChem.		IDLH
Carcinogenic classifications: IARC-3, NIOSH-Ca, NTP-R		Notes: Ca
AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:

Additional Resources and Literature References

NOAA: CAMEO Chemicals - Ethylene thiourea

NIOSH: Pocket Guide to Chemical Hazards - Ethylene thiourea

Literature References

EPA Air Toxics Website: Ethylene Thiourea. U.S. Environmental Protection Agency Technology Transfer Network.
No Author: Ethylene Thiourea. Report on Carcinogens (latest edition); U.S. Department of Health and Human Services, Public Health Service, National Toxicology Program.
El Balkhi, S., Sandouk, P. and Galliot-Guilley, M.: Determination of ethylene thiourea in urine by HPLC-DAD. J. Anal. Toxicol. 29(4): 229-233, 2005.
Frakes, R.A.: Drinking water guideline for ethylene thiourea, a metabolite of ethylene bisdithiocarbamate fungicides. Regul. Toxicol. Pharmacol. 8(2): 207-218, 1988.
Huff, J.: IARC monographs, industry influence, and upgrading, downgrading, and under-grading chemicals: a personal point of view. International Agency for Research on Cancer. Int. J. Occup. Environ. Health 8(3): 249-270, 2002.
Pohanish, R.P. (editor): Ethylene Thiourea. In, Sittig's Handbook of Toxic and Hazardous Chemicals and Carcinogens, Fourth Ed., Vol. 1. Norwich, NY: Noyes Publications, William Andrew Publishing, 2002, pp. 1102-1104.
Smith, D.M.: Ethylene thiourea: thyroid function in two groups of exposed workers. Br. J. Ind. Med. 41(3): 362-366, 1984.

Last Updated Date : 12/28/2020

METHYL ACRYLATE†

Chemical Identification
CAS #	96-33-3
Formula	C₄H₆O₂
Synonyms	methoxycarbonylethylene; methyl acrylate, inhibited; methyl ester of acrylic acid; methyl propenoate

Physical Properties
Physical description	Colorless liquid with an acrid odor.
Boiling point	176.9°F	Molecular weight	86.09
Freezing point/melting point	-106°F	Vapor pressure	65 mmHg
Flash point	44°F	Vapor density	3
Specific gravity	0.956	Ionization potential	9.90 eV
Lower explosive limit (LEL)	2.8%	Upper explosive limit (UEL)	25%
NFPA health rating	3	NFPA fire rating	3
NFPA reactivity rating	2	NFPA special instruction
Vapor hazard ratio (VHR)
Historical exceedance percentage
Target organs

Monitoring Methods Used by OSHA
Analyte code (IMIS no.)	1653
Sampling group
Sampler/Sampling media	CSC tube (100/50 mg) coated with 10% t-butylcatechol [SKC 226-73]
Sampling time^*	240 min
Sampling volume (TWA)^*	12 L
Sampling flow rate (TWA)^*	0.05 L/min
Sampling volume (STEL/Peak/C)^*	0.75 L
Sampling flow rate (STEL/Peak/C)^*	0.05 L/min
Analytical method instruments	GC-FID
Method reference	OSHA 92 (fully validated)
Notes
Special requirements

^* All sampling instructions above are recommended guidelines for OSHA Compliance Safety and Health Officers (CSHOs), please see the corresponding OSHA method reference for complete details.

Bulk/Wipe Method
Wipe Sampler/Sampling media	Wipe with charcoal pad, seal in glass vial for shipment. [3M 3500]
Bulk Method

On-Site Screening Techniques
Device	Detector tube	Detector tube	Detector tube
Model/Type	Dräger - Methyl Acrylate 5/a; 6728161	Gastec 141L	Matheson-Kitagawa 8014-211U
Sampling information (see manufacturer instructions)	20 strokes, approx 2-200 ppm range, uncertainty approx 50%	2 strokes, 10-400 ppm range; uncertainty 25%	2 strokes, approx 2-60 ppm range

**Exposure Limits**
OSHA PEL 8-hour TWA (ST) STEL (C) Ceiling Peak		NIOSH REL Up to 10-hour TWA (ST) STEL (C) Ceiling		ACGIH TLV© 8-hour TWA (ST) STEL (C) Ceiling		CAL/OSHA PEL 8-hour TWA (ST) STEL (C) Ceiling Peak
PEL-TWA	10 ppm (35 mg/m³)	REL-TWA	10 ppm (35 mg/m³)	TLV-TWA	2 ppm [1997]	PEL-TWA	10 ppm (35 mg/m³)
PEL-STEL		REL-STEL		TLV-STEL		PEL-STEL
PEL-C		REL-C		TLV-C		PEL-C
Skin notation	Y	Skin notation	Y	Skin notation	Y	Skin notation	Y
Notes: See 29 CFR 1910.1000 Table Z-1.		Notes:		Notes: dermal sensitization (DSEN)		Notes:
Health factors: See NIH-NLM PubChem.		IDLH	250 ppm
Carcinogenic classifications: IARC-3, TLV-A4, EPA-D		Notes:
AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:

Additional Resources and Literature References

NOAA: CAMEO Chemicals - Methyl acrylate, stabilized

NIOSH: Pocket Guide to Chemical Hazards - Methyl acrylate

Literature References

ACGIH: Documentation of the Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) - Methyl acrylate. See annual publication for most recent information.
Pohanish, R.P. (editor): Methyl Acrylate. In, Sittig's Handbook of Toxic and Hazardous Chemicals and Carcinogens, Fourth Ed., Vol. 2. Norwich, NY: Noyes Publications, William Andrew Publishing, 2002, pp. 1517-1519.

Last Updated Date : 01/29/2021

DIETHYL KETONE

Chemical Identification
CAS #	96-22-0
Formula	C₅H₁₀O
Synonyms	DEK; dimethylacetone; ethyl ketone; metacetone; 3-pentanone; propione

Physical Properties
Physical description	Colorless liquid with an acetone-like odor.
Boiling point	215°F	Molecular weight	86.2
Freezing point/melting point	-44°F	Vapor pressure	35 mmHg at 77°F
Flash point	55°F (open cup)	Vapor density
Specific gravity	0.81	Ionization potential	9.32 eV
Lower explosive limit (LEL)	1.6%	Upper explosive limit (UEL)	6.4%
NFPA health rating	1	NFPA fire rating	3
NFPA reactivity rating	0	NFPA special instruction
Vapor hazard ratio (VHR)
Historical exceedance percentage
Target organs

Monitoring Methods Used by OSHA
Analyte code (IMIS no.)	D707
Sampling group
Sampler/Sampling media	ORBO™ 91 Carbosieve® S-III (130/65) [Supelco 20360]
Sampling time^*	100 min
Sampling volume (TWA)^*	10 L
Sampling flow rate (TWA)^*	0.1 L/min
Sampling volume (STEL/Peak/C)^*
Sampling flow rate (STEL/Peak/C)^*
Analytical method instruments	GC-FID
Method reference	OSHA PV2136 (partially validated)
Notes
Special requirements

^* All sampling instructions above are recommended guidelines for OSHA Compliance Safety and Health Officers (CSHOs), please see the corresponding OSHA method reference for complete details.

Bulk/Wipe Method
Wipe Sampler/Sampling media
Bulk Method

On-Site Screening Techniques
Device	Infrared spectrophotometer
Model/Type	Miran 1A & 1B
Sampling information (see manufacturer instructions)	0.4 ppm@9 µm

**Exposure Limits**
OSHA PEL 8-hour TWA (ST) STEL (C) Ceiling Peak		NIOSH REL Up to 10-hour TWA (ST) STEL (C) Ceiling		ACGIH TLV© 8-hour TWA (ST) STEL (C) Ceiling		CAL/OSHA PEL 8-hour TWA (ST) STEL (C) Ceiling Peak
PEL-TWA		REL-TWA	200 ppm (705 mg/m³)	TLV-TWA	200 ppm [1995]	PEL-TWA	200 ppm (705 mg/m³)
PEL-STEL		REL-STEL		TLV-STEL	300 ppm [1995]	PEL-STEL	300 ppm (1057 mg/m³)
PEL-C		REL-C		TLV-C		PEL-C
Skin notation	NA	Skin notation	N	Skin notation	N	Skin notation	N
Notes: Not established		Notes:		Notes:		Notes:
Health factors: See NIH-NLM PubChem.		IDLH
Carcinogenic classifications: Not listed		Notes:
AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:

Additional Resources and Literature References

NOAA: CAMEO Chemicals - Diethyl ketone

NIOSH: Pocket Guide to Chemical Hazards - Diethyl ketone

Literature References

ACGIH: Documentation of the Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) - Diethyl ketone. See annual publication for most recent information.

Last Updated Date : 01/29/2021

1,2,3-TRICHLOROPROPANE†

Chemical Identification
CAS #	96-18-4
Formula	C₃H₅Cl₃
Synonyms	allyl trichloride; glycerol trichlorohydrin; glyceryl trichlorohydrin; trichlorohydrin

Physical Properties
Physical description	Colorless liquid with a chloroform-like odor.
Boiling point	314°F	Molecular weight	147.4
Freezing point/melting point	6°F	Vapor pressure	3 mmHg
Flash point	160°F	Vapor density	5.08
Specific gravity	1.39	Ionization potential
Lower explosive limit (LEL)	3.2%	Upper explosive limit (UEL)	12.6%
NFPA health rating	2	NFPA fire rating	2
NFPA reactivity rating	1	NFPA special instruction
Vapor hazard ratio (VHR)
Historical exceedance percentage
Target organs

Monitoring Methods Used by OSHA
Analyte code (IMIS no.)	2510
Sampling group
Sampler/Sampling media	CSC tube (100/50 mg) [SKC 226-01]
Sampling time^*
Sampling volume (TWA)^*	0.01-0.2 L/min
Sampling flow rate (TWA)^*
Sampling volume (STEL/Peak/C)^*
Sampling flow rate (STEL/Peak/C)^*
Analytical method instruments	GC-FID
Method reference	NIOSH 1003 (partially validated)
Notes
Special requirements

^* All sampling instructions above are recommended guidelines for OSHA Compliance Safety and Health Officers (CSHOs), please see the corresponding OSHA method reference for complete details.

Bulk/Wipe Method
Wipe Sampler/Sampling media
Bulk Method

On-Site Screening Techniques
Device	Infrared spectrophotometer
Model/Type	Miran 1A & 1B
Sampling information (see manufacturer instructions)	1 ppm@12.4 µm

**Exposure Limits**
OSHA PEL 8-hour TWA (ST) STEL (C) Ceiling Peak		NIOSH REL Up to 10-hour TWA (ST) STEL (C) Ceiling		ACGIH TLV© 8-hour TWA (ST) STEL (C) Ceiling		CAL/OSHA PEL 8-hour TWA (ST) STEL (C) Ceiling Peak
PEL-TWA	50 ppm (300 mg/m³)	REL-TWA	10 ppm (60 mg/m³)	TLV-TWA	0.005 ppm [2014]	PEL-TWA	10 ppm (60 mg/m³)
PEL-STEL		REL-STEL		TLV-STEL		PEL-STEL
PEL-C		REL-C		TLV-C		PEL-C
Skin notation	N	Skin notation	Y	Skin notation	N	Skin notation	N
Notes: See 29 CFR 1910.1000 Table Z-1.		Notes: CARCINOGEN (Ca): REDUCE EXPOSURE TO LOWEST FEASIBLE CONCENTRATION. See Appendix A, NIOSH Potential Occupational Carcinogens.		Notes:		Notes:
Health factors: See NIH-NLM PubChem.		IDLH	100 ppm
Carcinogenic classifications: IARC-2A, NIOSH-Ca, TLV-A2, NTP-R, EPA-L		Notes: Ca
AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:

Additional Resources and Literature References

NOAA: CAMEO Chemicals - 1,2,3-Trichloropropane

NIOSH: Pocket Guide to Chemical Hazards - 1,2,3-Trichloropropane

Literature References

ACGIH: Documentation of the Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) - 1,2,3-Trichloropropane. See annual publication for most recent information.

Last Updated Date : 12/19/2018

3-METHYLPENTANE

Chemical Identification
CAS #	96-14-0
Formula	C₆H₁₄
Synonyms	diethylmethylmethane

Physical Properties
Physical description	Clear liquids with mild, gasoline-like odors.
Boiling point	572°F	Molecular weight	182.2
Freezing point/melting point	-245 to -148°F	Vapor pressure	1 mmHg
Flash point	-54 to 19°F	Vapor density
Specific gravity	0.65-0.66	Ionization potential
Lower explosive limit (LEL)		Upper explosive limit (UEL)
NFPA health rating		NFPA fire rating
NFPA reactivity rating		NFPA special instruction
Vapor hazard ratio (VHR)
Historical exceedance percentage
Target organs

Monitoring Methods Used by OSHA
Analyte code (IMIS no.)	M337
Sampling group
Sampler/Sampling media
Sampling time^*
Sampling volume (TWA)^*
Sampling flow rate (TWA)^*
Sampling volume (STEL/Peak/C)^*
Sampling flow rate (STEL/Peak/C)^*
Analytical method instruments
Method reference	OSHA IN-HOUSE METHOD
Notes
Special requirements

^* All sampling instructions above are recommended guidelines for OSHA Compliance Safety and Health Officers (CSHOs), please see the corresponding OSHA method reference for complete details.

Bulk/Wipe Method
Wipe Sampler/Sampling media
Bulk Method

On-Site Screening Techniques
Device
Model/Type
Sampling information (see manufacturer instructions)

**Exposure Limits**
OSHA PEL 8-hour TWA (ST) STEL (C) Ceiling Peak		NIOSH REL Up to 10-hour TWA (ST) STEL (C) Ceiling		ACGIH TLV© 8-hour TWA (ST) STEL (C) Ceiling		CAL/OSHA PEL 8-hour TWA (ST) STEL (C) Ceiling Peak
PEL-TWA		REL-TWA	100 ppm (350 mg/m³)	TLV-TWA	500 ppm [1979]	PEL-TWA	500 ppm (1800 mg/m³)
PEL-STEL		REL-STEL		TLV-STEL	1000 ppm [1979]	PEL-STEL	1000 (3600 mg/m³)
PEL-C		REL-C	510 ppm (1800 mg/m³) [15 minutes]	TLV-C		PEL-C
Skin notation	NA	Skin notation	N	Skin notation	N	Skin notation	N
Notes: Not established		Notes:		Notes:		Notes: as Hexane, other isomers
Health factors: See NIH-NLM PubChem.		IDLH
Carcinogenic classifications:		Notes:
AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:

Additional Resources and Literature References

NOAA: CAMEO Chemicals -

NIOSH: Pocket Guide to Chemical Hazards - Hexane isomers (excluding n-Hexane)

Literature References

Last Updated Date : 12/15/2020

1,2-DIBROMO-3-CHLOROPROPANE‡

Chemical Identification
CAS #	96-12-8
Formula	C₃H₅Br₂Cl
Synonyms	1-chloro-2,3-dibromopropane; DBCP; cibromochloropropane

Physical Properties
Physical description	Dense yellow or amber liquid with a pungent odor at high concentrations.
Boiling point	384°F	Molecular weight	236.4
Freezing point/melting point	43°F	Vapor pressure	0.8 mmHg
Flash point	170°F (open cup)	Vapor density
Specific gravity	2.05	Ionization potential
Lower explosive limit (LEL)		Upper explosive limit (UEL)
NFPA health rating		NFPA fire rating
NFPA reactivity rating		NFPA special instruction
Vapor hazard ratio (VHR)
Historical exceedance percentage
Target organs

Monitoring Methods Used by OSHA
Analyte code (IMIS no.)
Sampling group
Sampler/Sampling media
Sampling time^*
Sampling volume (TWA)^*
Sampling flow rate (TWA)^*
Sampling volume (STEL/Peak/C)^*
Sampling flow rate (STEL/Peak/C)^*
Analytical method instruments
Method reference
Notes
Special requirements

^* All sampling instructions above are recommended guidelines for OSHA Compliance Safety and Health Officers (CSHOs), please see the corresponding OSHA method reference for complete details.

Bulk/Wipe Method
Wipe Sampler/Sampling media
Bulk Method

On-Site Screening Techniques
Device	Photoionization detector(PID)
Model/Type
Sampling information (see manufacturer instructions)

**Exposure Limits**
OSHA PEL 8-hour TWA (ST) STEL (C) Ceiling Peak		NIOSH REL Up to 10-hour TWA (ST) STEL (C) Ceiling		ACGIH TLV© 8-hour TWA (ST) STEL (C) Ceiling		CAL/OSHA PEL 8-hour TWA (ST) STEL (C) Ceiling Peak
PEL-TWA	0.001 ppm	REL-TWA		TLV-TWA		PEL-TWA	0.001 ppm (0.01 mg/m³)
PEL-STEL		REL-STEL		TLV-STEL		PEL-STEL
PEL-C		REL-C		TLV-C		PEL-C
Skin notation	Y	Skin notation	N	Skin notation	NA	Skin notation	Y
Notes: See 29 CFR 1910.1044, 1,2-dibromo-3-chloropropane.		Notes: CARCINOGEN (Ca): REDUCE EXPOSURE TO LOWEST FEASIBLE CONCENTRATION. See Appendix A, NIOSH Potential Occupational Carcinogens.		Notes: Not established		Notes: See also California Code of Regulations, Title 8 §5212. 1,2-Dibromo-3-Chloropropane (DBCP).
Health factors: See NIH-NLM PubChem.		IDLH
Carcinogenic classifications: IARC-2B, NIOSH-Ca, NTP-R, OSHA-Ca		Notes: Ca
AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:

Additional Resources and Literature References

NOAA: CAMEO Chemicals - 1,2-Dibromo-3-chloropropane

NIOSH: Pocket Guide to Chemical Hazards - 1,2-Dibromo-3-chloropropane

Literature References

Last Updated Date : 12/14/2020

1,2-EPOXYETHYLBENZENE

Chemical Identification
CAS #	96-09-3
Formula	C₈H₈O
Synonyms	styrene-7,8-oxide; styrene oxide; phenethylene oxide; styrene epoxide

Physical Properties
Physical description	Clear colorless straw-colored liquid with a sweet pleasant odor.
Boiling point	381°F	Molecular weight	120.15
Freezing point/melting point	-35°F	Vapor pressure	0.3 mmHg
Flash point	175°F	Vapor density	4.14
Specific gravity	1.0523	Ionization potential
Lower explosive limit (LEL)		Upper explosive limit (UEL)
NFPA health rating	1	NFPA fire rating	2
NFPA reactivity rating	0	NFPA special instruction
Vapor hazard ratio (VHR)
Historical exceedance percentage
Target organs

Monitoring Methods Used by OSHA
Analyte code (IMIS no.)
Sampling group
Sampler/Sampling media
Sampling time^*
Sampling volume (TWA)^*
Sampling flow rate (TWA)^*
Sampling volume (STEL/Peak/C)^*
Sampling flow rate (STEL/Peak/C)^*
Analytical method instruments
Method reference
Notes
Special requirements

^* All sampling instructions above are recommended guidelines for OSHA Compliance Safety and Health Officers (CSHOs), please see the corresponding OSHA method reference for complete details.

Bulk/Wipe Method
Wipe Sampler/Sampling media
Bulk Method

On-Site Screening Techniques
Device
Model/Type
Sampling information (see manufacturer instructions)

**Exposure Limits**
OSHA PEL 8-hour TWA (ST) STEL (C) Ceiling Peak		NIOSH REL Up to 10-hour TWA (ST) STEL (C) Ceiling		ACGIH TLV© 8-hour TWA (ST) STEL (C) Ceiling		CAL/OSHA PEL 8-hour TWA (ST) STEL (C) Ceiling Peak
PEL-TWA		REL-TWA		TLV-TWA	1 ppm (4.9 mg/m³) [2020]	PEL-TWA
PEL-STEL		REL-STEL		TLV-STEL		PEL-STEL
PEL-C		REL-C		TLV-C		PEL-C
Skin notation	NA	Skin notation	NA	Skin notation	N	Skin notation	NA
Notes: Not established		Notes: Not established		Notes: dermal sensitization (DSEN)		Notes: Not established
Health factors: See NIH-NLM PubChem.		IDLH
Carcinogenic classifications: NTP-R, IARC-2A, TLV-A3		Notes:
AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:

Additional Resources and Literature References

NOAA: CAMEO Chemicals - Styrene oxide

NIOSH: Pocket Guide to Chemical Hazards - Styrene oxide

Literature References

Last Updated Date : 05/17/2022

TOLUENE-2,4-DIAMINE

Chemical Identification
CAS #	95-80-7
Formula	C₇H₁₀N₂
Synonyms	2,4-diaminotoluene; diaminotoluene; methylphenylene diamine; TDA; toluenediamine isomers; tolylenediamine

Physical Properties
Physical description	Colorless crystalline solid.
Boiling point	558°F	Molecular weight	122.17
Freezing point/melting point	210°F	Vapor pressure	1 mmHg at 224°F
Flash point	300°F	Vapor density
Specific gravity	1.05 (liquid at 212°F)	Ionization potential
Lower explosive limit (LEL)		Upper explosive limit (UEL)
NFPA health rating		NFPA fire rating
NFPA reactivity rating		NFPA special instruction
Vapor hazard ratio (VHR)
Historical exceedance percentage
Target organs

Monitoring Methods Used by OSHA
Analyte code (IMIS no.)	2465
Sampling group
Sampler/Sampling media	2 GFFs (37 mm) coated with sulfuric acid, in 3-piece cassette, separated by the ring section [SKC 225-9004]
Sampling time^*
Sampling volume (TWA)^*	100 L
Sampling flow rate (TWA)^*	1 L/min
Sampling volume (STEL/Peak/C)^*
Sampling flow rate (STEL/Peak/C)^*
Analytical method instruments	GC-ECD
Method reference	OSHA 65 (fully validated)
Notes	Within ten hours after sampling, transfer filter to glass vial containing 2 mL deionized water. Filters may be obtained by OSHA personnel from the SLTC.
Special requirements

^* All sampling instructions above are recommended guidelines for OSHA Compliance Safety and Health Officers (CSHOs), please see the corresponding OSHA method reference for complete details.

Bulk/Wipe Method
Wipe Sampler/Sampling media
Bulk Method

On-Site Screening Techniques
Device
Model/Type
Sampling information (see manufacturer instructions)

**Exposure Limits**
OSHA PEL 8-hour TWA (ST) STEL (C) Ceiling Peak		NIOSH REL Up to 10-hour TWA (ST) STEL (C) Ceiling		ACGIH TLV© 8-hour TWA (ST) STEL (C) Ceiling		CAL/OSHA PEL 8-hour TWA (ST) STEL (C) Ceiling Peak
PEL-TWA		REL-TWA		TLV-TWA		PEL-TWA
PEL-STEL		REL-STEL		TLV-STEL		PEL-STEL
PEL-C		REL-C		TLV-C		PEL-C
Skin notation	NA	Skin notation	N	Skin notation	NA	Skin notation	NA
Notes: Not established		Notes: CARCINOGEN (Ca): REDUCE EXPOSURE TO LOWEST FEASIBLE CONCENTRATION. See Appendix A, NIOSH Potential Occupational Carcinogens.		Notes: Not established		Notes: Not established
Health factors: See NIH-NLM PubChem.		IDLH
Carcinogenic classifications: IARC-2B, NIOSH-Ca, NTP-R		Notes: Ca
AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:

Additional Resources and Literature References

NOAA: CAMEO Chemicals - 2,4-Toluenediamine

NIOSH: Pocket Guide to Chemical Hazards - 2,4-Toluenediamine

Literature References

Last Updated Date : 01/29/2021

DISULFIRAM

Chemical Identification

Physical Properties

Monitoring Methods Used by OSHA

Bulk/Wipe Method

On-Site Screening Techniques

Exposure Limits

Additional Resources and Literature References

4,4'-THIOBIS(6-TERT-BUTYL-M-CRESOL)†

Chemical Identification

Physical Properties

Monitoring Methods Used by OSHA

Bulk/Wipe Method

On-Site Screening Techniques

Exposure Limits

Additional Resources and Literature References

ETHYLENE THIOUREA

Chemical Identification

Physical Properties

Monitoring Methods Used by OSHA

Bulk/Wipe Method

On-Site Screening Techniques

Exposure Limits

Additional Resources and Literature References

METHYL ACRYLATE†

Chemical Identification

Physical Properties

Monitoring Methods Used by OSHA

Bulk/Wipe Method

On-Site Screening Techniques

Exposure Limits

Additional Resources and Literature References

DIETHYL KETONE

Chemical Identification

Physical Properties

Monitoring Methods Used by OSHA

Bulk/Wipe Method

On-Site Screening Techniques

Exposure Limits

Additional Resources and Literature References

1,2,3-TRICHLOROPROPANE†

Chemical Identification

Physical Properties

Monitoring Methods Used by OSHA

Bulk/Wipe Method

On-Site Screening Techniques

Exposure Limits

Additional Resources and Literature References

3-METHYLPENTANE

Chemical Identification

Physical Properties

Monitoring Methods Used by OSHA

Bulk/Wipe Method

On-Site Screening Techniques

Exposure Limits

Additional Resources and Literature References

1,2-DIBROMO-3-CHLOROPROPANE‡

Chemical Identification

Physical Properties

Monitoring Methods Used by OSHA

Bulk/Wipe Method

On-Site Screening Techniques

Exposure Limits

Additional Resources and Literature References

1,2-EPOXYETHYLBENZENE

Chemical Identification

Physical Properties

Monitoring Methods Used by OSHA

Bulk/Wipe Method

On-Site Screening Techniques

Exposure Limits

Additional Resources and Literature References

TOLUENE-2,4-DIAMINE

Chemical Identification

Physical Properties

Monitoring Methods Used by OSHA

Bulk/Wipe Method

On-Site Screening Techniques

Exposure Limits

Additional Resources and Literature References