Methyl silicate
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CAS
681-84-5
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(CH3O)4Si
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RTECS
VV9800000
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Synonyms & Trade Names
Methyl orthosilicate, Tetramethoxysilane, Tetramethyl ester of silicic acid, Tetramethyl silicate
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DOT ID & Guide
2606 / 155
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Exposure
Limits
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NIOSH REL: TWA 1 ppm (6 mg/m3)
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OSHA PEL†: none
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IDLH
N.D.
See: IDLH INDEX
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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
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BP: 250°F
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FRZ: 28°F
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Sol: Soluble
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VP(77°F): 12 mmHg
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IP: ?
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Sp.Gr: 1.02
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Fl.P: 205°F
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UEL: ?
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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 |
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
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First Aid (See procedures)
Eye: Irrigate immediately
Skin: Soap wash
Breathing: Respiratory support
Swallow: Medical attention immediately
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Respirator Recommendations
Not available.
Important additional information about respirator selection
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Exposure Routes
inhalation, ingestion, skin and/or eye contact
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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 |
