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Methyl silicate |
CAS 681-84-5 | ||
(CH3O)4Si |
RTECS VV9800000 | ||
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Synonyms & Trade Names Methyl orthosilicate, Tetramethoxysilane, Tetramethyl ester of silicic acid, Tetramethyl silicate |
DOT ID & Guide 2606 155 |
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Exposure
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NIOSH REL: TWA 1 ppm (6 mg/m3) | ||
| OSHA PEL†: none | |||
| IDLH N.D. See: IDLH INDEX | Conversion 1 ppm = 6.23 mg/m3 | ||
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Physical Description Clear, colorless liquid. [Note: A solid below 28°F.] |
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MW: 152.3 |
BP: 250°F |
FRZ: 28°F |
Sol: Soluble |
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VP(77°F): 12 mmHg |
IP: ? |
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Sp.Gr: 1.02 |
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Fl.P: 205°F |
UEL: ? |
LEL: ? |
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| Class IIIB Combustible Liquid: Fl.P. at or above 200°F. | |||
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Incompatibilities & Reactivities Oxidizers; hexafluorides of rhenium, molybdenum & tungsten |
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Measurement Methods None available See: NMAM or OSHA Methods |
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Personal Protection & Sanitation (See protection) Skin: Prevent skin contact Eyes: Prevent eye contact Wash skin: Daily Remove: When wet or contaminated Change: No recommendation Provide: Eyewash |
First Aid (See procedures) Eye: Irrigate immediately Skin: Soap wash Breathing: Respiratory support Swallow: Medical attention immediately |
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Important additional information about respirator selection Respirator Recommendations Not available. |
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| Exposure Routes inhalation, ingestion, skin and/or eye contact | |
| Symptoms Irritation eyes, corneal damage (following even short-term exposure to the vapor); lung, kidney injury; pulmonary edema | |
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Target Organs
Eyes, respiratory system, kidneys |
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| See also: INTRODUCTION See ICSC CARD: 1188 |