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| Demeton | CAS 8065-48-3 | ||
| (C2H5O)2PSOC2H4SC2H5 | RTECS TF3150000 | ||
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Synonyms & Trade Names O-O-Diethyl-O(and S)-2-(ethylthio)ethyl phosphorothioate mixture, Systox® |
DOT ID & Guide |
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Exposure Limits |
NIOSH REL: TWA 0.1 mg/m3 [skin] | ||
| OSHA PEL: TWA 0.1 mg/m3 [skin] | |||
| IDLH 10 mg/m3 | Conversion | ||
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Physical Description Amber, oily liquid with a sulfur-like odor. [insecticide] |
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MW: 258.3 |
BP: Decomposes |
FRZ: <-13°F |
Sol: 0.01% |
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VP: 0.0003 mmHg |
IP: ? |
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Sp.Gr: 1.12 |
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Fl.P: 113°F |
UEL: ? |
LEL: ? |
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| Class II Combustible Liquid: Fl.P. at or above 100°F and below 140°F. | |||
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Incompatibilities & Reactivities Strong oxidizers, alkalis, water |
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Measurement Methods NIOSH 5514 |
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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: Daily 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 1 mg/m3: (APF = 10) Any supplied-air respirator Up to 2.5 mg/m3: (APF = 25) Any supplied-air respirator operated in a continuous-flow mode Up to 5 mg/m3: (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 10 mg/m3: (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; miosis, ache eyes, rhinorrhea (discharge of thin mucus), headache; chest tightness, wheezing, laryngeal spasm, salivation, cyanosis; anorexia, nausea, vomiting, abdominal cramps, diarrhea; localized sweating; muscle fasciculation, lassitude (weakness, exhaustion), paralysis; dizziness, confusion, ataxia; convulsions, coma; low blood pressure; cardiac irregularities | |
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Target Organs
Eyes, skin, respiratory system, cardiovascular system, central nervous system, blood cholinesterase |
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| See also: INTRODUCTION |