Phosdrin |
Synonyms & Trade Names 2-Carbomethoxy-1-methylvinyl dimethyl phosphate, Mevinphos [Note: Commercial product is a mixture of the cis- & trans-isomers.] |
CAS No. 7786-34-7 |
RTECS No. GQ5250000 |
DOT ID & Guide 2783 152 |
FormulaC7H13PO6 |
Conversion 1 ppm = 9.17 mg/m3 |
IDLH 4 ppm
See: 7786347 |
Exposure Limits NIOSH REL: TWA 0.01 ppm (0.1 mg/m3) ST 0.03 ppm (0.3 mg/m3) [skin]
OSHA PEL†: TWA 0.1 mg/m3 [skin] |
Measurement Methods
NIOSH 5600
See: NMAM or OSHA Methods |
Physical Description Pale-yellow to orange liquid with a weak odor. [Note: Insecticide that may be absorbed on a dry carrier.] |
MW: 224.2 |
BP: Decomposes |
FRZ: 44°F (trans-) 70°F (cis-) |
Sol: Miscible |
VP: 0.003 mmHg |
IP: ? |
Sp.Gr: 1.25 |
Fl.P(oc): 347°F |
UEL: ? |
LEL: ? |
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| Class IIIB Combustible Liquid: Fl.P. at or above 200°F. |
Incompatibilities & Reactivities Strong oxidizers [Note: Corrosive to cast iron, some stainless steels & brass.] |
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; paralysis; ataxia, convulsions; low blood pressure, cardiac irreg |
Target Organs Eyes, skin, respiratory system, central nervous system, cardiovascular system, blood 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: No recommendation
Provide: Eyewash, Quick drench |
First Aid (See procedures)
Eye: Irrigate immediately
Skin: Soap wash immediately
Breathing: Respiratory support
Swallow: Medical attention immediately |
Respirator Recommendations NIOSH/OSHA Up to 0.1 ppm:
(APF = 10) Any supplied-air respirator Up to 0.25 ppm:
(APF = 25) Any supplied-air respirator operated in a continuous-flow mode Up to 0.5 ppm:
(APF = 50) Any supplied-air respirator that has a tight-fitting facepiece and is operated in a continuous-flow mode
(APF = 50) Any self-contained breathing apparatus with a full facepiece
(APF = 50) Any supplied-air respirator with a full facepiece Up to 4 ppm:
(APF = 1000) Any supplied-air respirator operated in a pressure-demand or other positive-pressure mode Emergency or planned entry into unknown concentrations or IDLH conditions:
(APF = 10,000) Any self-contained breathing apparatus that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode
(APF = 10,000) Any supplied-air respirator that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode in combination with an auxiliary self-contained positive-pressure breathing apparatus Escape:
(APF = 50) Any air-purifying, full-facepiece respirator (gas mask) with a chin-style, front- or back-mounted organic vapor canister having an N100, R100, or P100 filter.
Click here for information on selection of N, R, or P filters.
Any appropriate escape-type, self-contained breathing apparatus
Important additional information about respirator selection |
| See also: INTRODUCTION See ICSC CARD: 0924 See MEDICAL TESTS: 0185 |
