hexamethyldisilazane
bis(trimethylsilyl)amine
Identification
| Name | hexamethyldisilazane |
| CAS Number | 999-97-3 |
| EINECS | 213-668-5 |
| FDA UNII | H36C68P1BH |
| Molecular Formula | C6 H19 N Si2 |
| Molecular Weight | 161.39503000 |
| MDL Number | MFCD00008259 |
| Nikkaji Number | J7.217F |
| Beilstein | 635752 |
Regulatory
| DG SANTE Food Contact Materials | hexamethyldisilazane |
Physical Properties
| Appearance | colorless to pale yellow clear liquid (est) |
| Assay | 95.00 to 100.00 |
| Food Chemicals Codex Listed | No |
| Specific Gravity | 0.77400 to 0.77800 @ 20.00 °C. |
| Pounds per Gallon - (est). | 6.448 to 6.481 |
| Refractive Index | 1.40600 to 1.41000 @ 20.00 °C. |
| Boiling Point | 125.00 °C. @ 760.00 mm Hg |
| Vapor Pressure | 13.800000 mmHg @ 25.00 °C. |
| Flash Point | 48.00 °F. TCC ( 8.89 °C. ) |
| Soluble in | water, 392.3 mg/L @ 25 °C (est) |
No sensory data available
Safety Information
| Preferred SDS | View |
| Oral/Parenteral Toxicity | intravenous-mouse LD50 > 100 mg/kg |
| Dermal Toxicity | skin-guinea pig LD50 1 mL/kg |
| Inhalation Toxicity | inhalation-mouse LC50 12000 mg/m3/2H |
GHS Classification
['GHS Classification in accordance with 29 CFR 1910 (OSHA HCS)', 'GHS Label elements, including precautionary statements']
Safety in Use
| Category | indirect food additives: adhesives and components of coatings |
| Recommendation for hexamethyldisilazane usage levels up to | not for fragrance use. |
| Recommendation for hexamethyldisilazane flavor usage levels up to | not for flavor use. |
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Potential Uses
Natural Occurrence
Synonyms
dimethyl-(trimethylsilylamino)silyl]methane
disilazane, hexamethyl-
1,1,1,3,3,3-
hexamethyl disilazane
1,1,1,3,3,3-
hexamethyldisilazane
bis(t
rimethylsilyl)amine
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