PHORATE
| Chemical Identification | |
|---|---|
| CAS # | 298-02-2 |
| Formula |
C₇H₁₇O₂PS₃ |
| Synonyms |
O,O-diethyl S-(ethylthio)methylphosphorodithioate; O,O-diethyl S-ethylthiomethylthiothionophosphate; thimet; timet |
| Physical Properties | |||
|---|---|---|---|
| Physical description | Clear liquid with a skunk-like odor. | ||
| Boiling point | 257-261°F | Molecular weight | 260.39 |
| Freezing point/melting point | -45°F | Vapor pressure | 0.00084 mmHg at 68°F |
| Flash point | 320°F (open cup) | Vapor density | |
| Specific gravity | 1.16 at 77°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 | ||||||
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| 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 | |
|---|---|
| Sampler/Sampling media |
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| Bulk Method |
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| On-Site Screening Techniques | ||||||
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| Device | ||||||
| Model/Type | ||||||
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Sampling information (see manufacturer instructions) |
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| 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 |
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| PEL-TWA |
|
REL-TWA |
0.05 mg/m³ |
TLV-TWA |
0.05 mg/m³ (inhalable fraction and vapor) [2002] |
PEL-TWA |
0.05 mg/m³ |
| PEL-STEL |
|
REL-STEL |
|
TLV-STEL |
|
PEL-STEL |
0.2 mg/m³ |
| PEL-C |
|
REL-C |
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TLV-C |
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PEL-C |
|
| Skin notation |
NA |
Skin notation |
Y |
Skin notation |
Y |
Skin notation |
Y |
|
Notes:
Not established |
Notes:
|
Notes:
BEI® |
Notes:
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| Health factors: See NIH-NLM PubChem. | IDLH |
15 ppm |
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| Carcinogenic classifications: TLV-A4 |
Notes:
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AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:
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| Additional Resources and Literature References |
|---|
|
NOAA: CAMEO Chemicals - Phorate NIOSH: Pocket Guide to Chemical Hazards - Phorate Literature References
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Last Updated Date : 01/08/2021