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| Trimethyl phosphite | CAS 121-45-9 | ||
| (CH3O)3P | RTECS TH1400000 | ||
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Synonyms & Trade Names Methyl phosphite, Trimethoxyphosphine, Trimethyl ester of phosphorous acid |
DOT ID & Guide 2329 129 |
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Exposure Limits |
NIOSH REL: TWA 2 ppm (10 mg/m3) | ||
| OSHA PEL�: none | |||
| IDLH N.D. | Conversion 1 ppm = 5.08 mg/m3 | ||
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Physical Description Colorless liquid with a distinctive, pungent odor. |
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MW: 124.1 |
BP: 232°F |
FRZ: -108°F |
Sol: Reacts |
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VP(77°F): 24 mmHg |
IP: ? |
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Sp.Gr: 1.05 |
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Fl.P: 82°F |
UEL: ? |
LEL: ? |
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| Class IC Flammable Liquid: Fl.P. at or above 73�F and below 100�F. | |||
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Incompatibilities & Reactivities Magnesium perchlorate, water [Note: Reacts (hydrolyzes) with water.] |
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Measurement Methods None available |
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Personal Protection & Sanitation Skin: Prevent skin contact Eyes: Prevent eye contact Wash skin: When contaminated Remove: When wet (flammable) Change: No recommendation Provide: Quick drench |
First Aid (See procedures) Eye: Irrigate immediately Skin: Soap flush immediately Breathing: Respiratory support Swallow: Medical attention immediately |
| Respirator Recommendations To be added later | |
| Exposure Routes inhalation, ingestion, skin and/or eye contact | |
| Symptoms Irritation eyes, skin, upper respiratory system; dermatitis; in animals: teratogenic effects | |
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Target Organs
Eyes, skin, respiratory system, reproductive system |
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| See also: INTRODUCTION |