PHOSDRIN (MEVINPHOS)†

Chemical Identification
Chemical Identification
CAS # 7786-34-7
Formula

C₇H₁₃O₆P

Synonyms

2-carbomethoxy-1-methylvinyl dimethyl phosphate; mevinphos [Note: Commercial product is a mixture of the cis-& trans-isomers.]

Physical Properties
Physical Properties
Physical description Pale-yellow to orange liquid with a weak odor.
Boiling point 223-226°F at 1 mmHg Molecular weight 224.17
Freezing point/melting point 44.4-70°F (trans-) 70°F (cis-) Vapor pressure 0.003 mmHg
Flash point 175°F Vapor density
Specific gravity 0.0029 mmHg at 70°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

0.1 mg/m³

REL-TWA
 

0.01 ppm (0.1 mg/m³)

TLV-TWA
 

0.01 mg/m³ (inhalable fraction and vapor) [1998]

PEL-TWA
 

0.01 ppm (0.1 mg/m³)

PEL-STEL REL-STEL
 

0.03 ppm (0.3 mg/m³)

TLV-STEL
 

 

PEL-STEL
 

0.03 ppm (0.3 mg/m³)

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:
 

BEI®

Notes:
 

 

Health factors:  See NIH-NLM PubChem. IDLH
 

4 ppm

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 - Mevinphos

NIOSH: Pocket Guide to Chemical Hazards - Phosdrin

Literature References

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

Last Updated Date : 01/29/2021