Chlorpyrifos |
Synonyms & Trade Names Chlorpyrifos-ethyl; O,O-Diethyl O-3,5,6-trichloro-2-pyridyl phosphorothioate; Dursban® |
CAS No. 2921-88-2 |
RTECS No. TF6300000 |
DOT ID & Guide 2783 152 |
FormulaC9H11Cl3NO3PS |
Conversion |
IDLH N.D.
See: IDLH INDEX |
Exposure Limits NIOSH REL: TWA 0.2 mg/m3 ST 0.6 mg/m3 [skin]
OSHA PEL†: none |
Measurement Methods
NIOSH 5600;
OSHA 62
See: NMAM or OSHA Methods |
Physical Description Colorless to white, crystalline solid with a mild, mercaptan-like odor. [pesticide] [Note: Commercial formulations may be combined with combustible liquids.] |
MW: 350.6 |
BP: 320°F (Decomposes) |
MLT: 108°F |
Sol: 0.0002% |
VP: 0.00002 mmHg |
IP: ? |
Sp.Gr: 1.40 (Liquid at 110°F) |
Fl.P: ? |
UEL: ? |
LEL: ? |
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| Combustible Solid |
Incompatibilities & Reactivities Strong acids, caustics, amines [Note: Corrosive to copper & brass.] |
Exposure Routes inhalation, skin absorption, ingestion, skin and/or eye contact |
Symptoms wheezing, laryngeal spasms, salivation; bluish lips, skin; miosis, blurred vision; nausea, vomiting, abdominal cramps, diarrhea |
Target Organs respiratory system, central nervous system, peripheral nervous system, plasma cholinesterase |
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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
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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 See ICSC CARD: 0851
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