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Heptamethyldisilazane Structure

Heptamethyldisilazane

Chemical Properties

Boiling point 144-147 °C(lit.)
Density  0.799 g/mL at 20 °C(lit.)
refractive index  n20/D 1.421(lit.)
Flash point 27 °C
storage temp.  Flammables area
pka 14.41±0.70(Predicted)
form  clear liquid
color  Colorless to Almost colorless
Specific Gravity 0.798
Water Solubility  Decomposes
Hydrolytic Sensitivity 7: reacts slowly with moisture/water
Sensitive  Moisture Sensitive
BRN  1737290
CAS DataBase Reference 920-68-3(CAS DataBase Reference)
EPA Substance Registry System Silanamine, N,1,1,1-tetramethyl-N-(trimethylsilyl)- (920-68-3)

Safety

Symbol(GHS)
Signal wordWarning
Hazard statements H226-H315-H319-H335
Precautionary statements P210-P302+P352-P305+P351+P338
Hazard Codes  Xi
Risk Statements  10-36/37/38
Safety Statements  26-36
RIDADR  UN 1993 3/PG 3
WGK Germany  3
F  10
TSCA  Yes
HazardClass  3
PackingGroup  III
HS Code  29319090
NFPA 704:
3
2 0

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