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| Phosdrin | CAS 7786-34-7 | ||
| C7H13PO6 | RTECS GQ5250000 | ||
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Synonyms & Trade Names 2-Carbomethoxy-1-methylvinyl dimethyl phosphate, Mevinphos [Note: Commercial product is a mixture of the cis- & trans-isomers.] |
DOT ID & Guide 2783 152 |
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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] | |||
| IDLH 4 ppm | Conversion 1 ppm = 9.17 mg/m3 | ||
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Physical Description Pale-yellow to orange liquid with a weak odor. [Note: Insecticide that may be absorbed on a dry carrier.] |
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MW: 224.2 |
BP: Decomposes |
FRZ: 44°F (trans-) 70°F (cis-) |
Sol: Miscible |
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VP: 0.003 mmHg |
IP: ? |
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Sp.Gr: 1.25 |
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Fl.P(oc): 347°F |
UEL: ? |
LEL: ? |
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| Class IIIB Combustible Liquid: Fl.P. at or above 200�F. | |||
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Incompatibilities & Reactivities Strong oxidizers [Note: Corrosive to cast iron, some stainless steels & brass.] |
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Measurement Methods NIOSH 5600 |
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Personal Protection & Sanitation 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 |
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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 a high-efficiency particulate filter/Any appropriate escape-type, self-contained breathing apparatus |
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| Exposure Routes inhalation, skin absorption, ingestion, skin and/or eye contact | |
| Symptoms Irritation eyes, skin, respiratory system; miosis; rhinorrhea (discharge of thin mucus); headache; chest tightness, wheezing, laryngeal spasm, salivation, cyanosis; anorexia, nausea, vomiting, abdominal cramps, diarrhea; paralysis; ataxia, convulsions; low blood pressure, cardiac irregularities | |
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Target Organs
Eyes, skin, respiratory system, central nervous system, cardiovascular system, blood cholinesterase |
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| See also: INTRODUCTION |