Methyl silicate |
Synonyms & Trade Names Methyl orthosilicate, Tetramethoxysilane, Tetramethyl ester of silicic acid, Tetramethyl silicate |
CAS No. 681-84-5 |
RTECS No. VV9800000 |
DOT ID & Guide 2606 155 |
Formula(CH3O)4Si |
Conversion 1 ppm = 6.23 mg/m3 |
IDLH N.D.
See: IDLH INDEX |
Exposure Limits NIOSH REL: TWA 1 ppm (6 mg/m3)
OSHA PEL†: none |
Measurement Methods
None available
See: NMAM or OSHA Methods |
Physical Description Clear, colorless liquid. [Note: A solid below 28°F.] |
MW: 152.3 |
BP: 250°F |
FRZ: 28°F |
Sol: Soluble |
VP(77°F): 12 mmHg |
IP: ? |
Sp.Gr: 1.02 |
Fl.P: 205°F |
UEL: ? |
LEL: ? |
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| Class IIIB Combustible Liquid: Fl.P. at or above 200°F. |
Incompatibilities & Reactivities Oxidizers; hexafluorides of rhenium, molybdenum & tungsten |
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 |
Target Organs Eyes, respiratory system, kidneys |
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Personal Protection/Sanitation (See protection codes)
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 |
Respirator Recommendations Not available.
Important additional information about respirator selection |
| See also: INTRODUCTION See ICSC CARD: 1188
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