TERBUFOS

Chemical Identification
Chemical Identification
CAS # 13071-79-9
Formula

C₉H₂₁O₂PS₃

Synonyms

phosphorodithioic acid S-[[1.1-dimethylethyl)thio]methyl]-o,o-diethyl ester; Counter 15G

Physical Properties
Physical Properties
Physical description Clear, colorless to pale yellow liquid.
Boiling point 156°F at 0.01 mmHg Molecular weight 288.45
Freezing point/melting point -20.6°F Vapor pressure 0.0003 mmHg at 77°F
Flash point 190°F Vapor density
Specific gravity 1.105 at 75.2°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
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.

Wipe Method
Wipe Method
Sampler/Sampling media
Bulk Method
Bulk Method
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 REL-TWA TLV-TWA

0.01 mg/m³ (inhalable fraction and vapor) [1999]

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

Y

Skin notation

NA

Notes:

Not established

Notes:

Not established

Notes:

BEI®

Notes:

Not established

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
Additional Resources and Literature References

NOAA: CAMEO Chemicals - Terbufos

NIOSH: Pocket Guide to Chemical Hazards - Terbufos

Literature References

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

Last Updated Date : 01/12/2021