1. OSHA Occupational Chemical Database
  2. CARBARYL
Label abbreviations descriptions

CARBARYL†

Chemical Identification
Chemical Identification
CAS # 63-25-2
Formula

C₁₂H₁₁NO₂
Synonyms

α-naphthyl N-methyl-carbamate; 1-naphthyl N-methyl-carbamate; Sevin
Physical Properties
Physical Properties
Physical description White or gray, odorless solid.
Boiling point decomposes Molecular weight 201.2
Freezing point/melting point 293°F Vapor pressure <0.00004 mmHg at 77°F
Flash point Vapor density
Specific gravity 1.23 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
Monitoring Methods Used by OSHA
Analyte code (IMIS no.) 0525
Sampling group
Sampler/Sampling media OSHA versatile sampler (OVS-2) - 13 mm XAD-2 tube (270/140 mg) with GFF enclosed [SKC 226-30-16]
Sampling time*
Sampling volume (TWA)*

60 L
Sampling flow rate (TWA)*

1 L/min
Sampling volume (STEL/Peak/C)*
Sampling flow rate (STEL/Peak/C)*
Analytical method instruments HPLC-UV
Method reference OSHA 63 (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.

Wipe Method
Wipe Method
Sampler/Sampling media

Wipe with GFF (37 mm), Type A/E [AP4003705]
Bulk Method
Bulk Method

Limit the amount of bulk submitted to 1 g or 1 mL.
On-Site Screening Techniques
On-Site Screening Techniques
Device
Model/Type
Sampling information
(see manufacturer instructions)
Exposure Limits
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

5 mg/m³

 REL-TWA

5 mg/m³

 TLV-TWA

0.5 mg/m³ (inhalable fraction and vapor) [2007]

 PEL-TWA

5 mg/m³
PEL-STEL REL-STEL TLV-STEL PEL-STEL
PEL-C REL-C TLV-C PEL-C
Skin notation

N

 Skin notation

N

 Skin notation

Y

 Skin notation

N
Notes:

See 29 CFR 1910.1000 Table Z-1.

 Notes: Notes:

BEI®

 Notes:
Health factors:  See NIH-NLM PubChem. IDLH

100 mg/m³
Carcinogenic classifications: IARC-3, TLV-A4 Notes:
AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:
Additional Resources and Literature References
Additional Resources and Literature References

NOAA: CAMEO Chemicals - Carbaryl

NIOSH: Pocket Guide to Chemical Hazards - Carbaryl

Literature References

  • ACGIH: Documentation of the Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) - Carbaryl. See annual publication for most recent information.
  • EPA Air Toxics Website: Carbaryl. U.S. Environmental Protection Agency Technology Transfer Network.
  • Branch, R.A. and Jacqz, E.: Subacute neurotoxicity following long-term exposure to carbaryl. Am. J. Med. 80(4): 741-745, 1986.
  • Dickoff, D.J., Gerber, O. and Turovsky, Z.: Delayed neurotoxicity after ingestion of carbamate pesticide. Neurology 37(7): 1229-1231, 1987.
  • Ehrich, M., Jortner, B.S. and Padilla, S.: Comparison of the relative inhibition of acetylcholinesterase and neuropathy target esterase in rats and hens given cholinesterase inhibitors. Fundam. Appl. Toxicol. 24(1): 94-101, 1995.
  • Pohanish, R.P. (editor): Carbaryl. In, Sittig's Handbook of Toxic and Hazardous Chemicals and Carcinogens, Fourth Ed., Vol. 1. Norwich, NY: Noyes Publications, William Andrew Publishing, 2002, pp. 484-486.
  • Tang, J., Cao, Y., Rose, R.L. and Hodgson, E.: In vitro metabolism of carbaryl by human cytochrome P450 and its inhibition by chlorpyrifos. Chem. Biol. Interact. 141(3): 229-241, 2002.
  • Zheng, T., Zahm, S.H., Cantor, KP. Weisenburger, D.D., Zhang, Y. and Blair A.: Agricultural exposure to carbamate pesticides and risk of non-Hodgkin lymphoma. J. Occup. Environ. Med. 43(7): 641-649, 2001.

Last Updated Date : 12/21/2020