NIOSH logo and tagline

Temephos

Related Pages
Synonyms & Trade Names
Abate®, Temefos, O,O,O'O'-Tetramethyl O,O'-thiodi-p-phenylene phosphorothioate
CAS No.
3383-96-8
RTECS No.
TF6890000
DOT ID & Guide
Formula
S[C₆H₄OP(S)(OCH₃)₂]₂
Conversion
IDLH
N.D.
See: IDLH INDEX
Exposure Limits
NIOSH REL
TWA 10 mg/m3 (total) TWA 5 mg/m3 (resp)
OSHA PEL
TWA 15 mg/m3 (total) TWA 5 mg/m3 (resp) See Appendix G
Measurement Methods
NIOSH 0500 , 0600;
OSHA PV2056
See: NMAM or OSHA Methods
Physical Description
White, crystalline solid or liquid (above 87°F). [insecticide] [Note: Technical grade is a viscous, brown liquid.]
Molecular Weight
466.5
Boiling Point
248-257°F (Decomposes)
Melting Point
87°F
Solubility
Insoluble
Vapor Pressure
(77°F): 0.00000007 mmHg
Ionization Potential
?
Specific Gravity
1.32
Flash Point
?
Upper Explosive Limit
?
Lower Explosive Limit
?
Combustible Solid
Incompatibilities & Reactivities
None reported
Exposure Routes
inhalation, skin absorption, ingestion, skin and/or eye contact
Symptoms
irritation eyes, blurred vision; dizziness; dyspnea (breathing difficulty); salivation; abdominal cramps, nausea, diarrhea, vomiting
Target Organs
Eyes, 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:Daily
First Aid
(See procedures)
Eye:Irrigate immediately
Skin:Soap wash immediately
Breathing:Respiratory support
Swallow:Medical attention immediately
Respirator Recommendations

Not available.

Important additional information about respirator selection

See also
INTRODUCTION   ICSC CARD: 0199
Page last reviewed: October 30, 2019
Content source: National Institute for Occupational Safety and Health