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1,3-Bis(trimethylsilyl)urea Structure

1,3-Bis(trimethylsilyl)urea

Chemical Properties

Melting point 219-221 °C(lit.)
Boiling point 222°C
Density  0.887
vapor pressure  0.002-1850Pa at 25℃
Flash point 65°C
storage temp.  Inert atmosphere,Room Temperature
solubility  pyridine: soluble100mg/mL, clear to slightly hazy, colorless to light yellow
form  solid
pka 16.51±0.46(Predicted)
color  White to Almost white
Water Solubility  Reacts with water.
Sensitive  Moisture Sensitive
Hydrolytic Sensitivity 7: reacts slowly with moisture/water
BRN  1937452
InChIKey MASDFXZJIDNRTR-UHFFFAOYSA-N
LogP -2.11-2.72 at 20℃
CAS DataBase Reference 18297-63-7(CAS DataBase Reference)
NIST Chemistry Reference Urea, n,n'-bis(trimethylsilyl)-(18297-63-7)
EPA Substance Registry System N,N'-Bis(trimethylsilyl)urea (18297-63-7)
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Safety

Symbol(GHS) GHS hazard pictograms
Signal wordDanger
Hazard statements H228
Precautionary statements P210
Hazard Codes  F,Xn
Risk Statements  11-36/37/38-20/21/22
Safety Statements  14-16-24/25-36-26
RIDADR  UN 1325 4.1/PG 2
WGK Germany  3
F  3-10-21
TSCA  Yes
HS Code  29310095
NFPA 704:
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