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Phorate

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Synonyms & Trade Names
O,O-Diethyl S-(ethylthio)methylphosphorodithioate, O,O-Diethyl S-ethylthiomethylthiothionophosphate, Thimet, Timet
CAS No.
298-02-2
RTECS No.
TD9450000
DOT ID & Guide
3018 152(organophosphorus pesticide, liquid, toxic)
Formula
(C₂H₅O)₂P(S)SCH₂SC₂H₅
Conversion
IDLH
N.D.
See: IDLH INDEX
Exposure Limits
NIOSH REL
TWA 0.05 mg/m3 ST 0.2 mg/m3 [skin]
OSHA PEL
none See Appendix G
Measurement Methods
NIOSH 5600
See: NMAM or OSHA Methods
Physical Description
Clear liquid with a skunk-like odor. [insecticide]
Molecular Weight
260.4
Boiling Point
?
Freezing Point
-45°F
Solubility
0.005%
Vapor Pressure
0.0008 mmHg
Ionization Potential
?
Specific Gravity
(77°F): 1.16
Flash Point
(oc) 320°F
Upper Explosive Limit
?
Lower Explosive Limit
?
Class IIIB Combustible Liquid: Fl.P. at or above 200°F., but does not readily ignite.
Incompatibilities & Reactivities
Water, alkalis [Note: Hydrolyzed in the presence of moisture and by alkalis.]
Exposure Routes
inhalation, skin absorption, ingestion, skin and/or eye contact
Symptoms
irritation eyes, skin, respiratory system; miosis; rhinorrhea (discharge of thin nasal mucus); headache; chest tightness, wheezing, laryngeal spasm, salivation, cyanosis; anorexia, nausea, vomiting, abdominal cramps, diarrhea; sweating; muscle fasciculation, lassitude (weakness, exhaustion), paralysis; dizziness, confusion, ataxia; convulsions, coma; low blood pressure; cardiac irreg
Target Organs
Eyes, skin, respiratory system, central nervous system, cardiovascular system, blood cholinesterase
Personal Protection/Sanitation
(See protection codes)
Skin:Prevent skin contact
Eyes:Prevent eye contact
Wash skin:When contaminated
Remove:When wet or contaminated
Change:No recommendation
Provide:Eyewash, Quick drench
First Aid
(See procedures)
Eye:Irrigate immediately
Skin:Soap flush immediately
Breathing:Respiratory support
Swallow:Medical attention immediately
Respirator Recommendations

Not available.

Important additional information about respirator selection

See also
INTRODUCTION   ICSC CARD: 1060
Page last reviewed: October 30, 2019
Content source: National Institute for Occupational Safety and Health