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541-05-9

Name Hexamethylcyclotrisiloxane
CAS 541-05-9
EINECS(EC#) 208-765-4
Molecular Formula C6H18O3Si3
MDL Number MFCD00005943
Molecular Weight 222.46
MOL File 541-05-9.mol
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Chemical Properties

Appearance White crystalline solid
Melting point  50-64 °C (lit.)
Boiling point  134 °C (lit.)
density  1.02
vapor density  1 (vs air)
vapor pressure  0.014-671Pa at 24.85-25℃
RTECS  GZ4705000
Fp  95 °F
storage temp.  Flammables area
solubility  soluble in most organic solvents.
form  solid
color  White to Almost white
Specific Gravity 1.02
Stability: Stable, but moisture sensitive. Incompatible with strong oxidizing agents. Highly flammable.
Water Solubility  may decompose
Hydrolytic Sensitivity 1: no significant reaction with aqueous systems
Sensitive  Moisture Sensitive
BRN  1766829
LogP -0.38-4.4 at 20-25℃
CAS DataBase Reference 541-05-9(CAS DataBase Reference)
NIST Chemistry Reference Hexamethylcyclotrisiloxane(541-05-9)
EPA Substance Registry System 541-05-9(EPA Substance)
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Safety Data

Hazard Codes  F,Xi
Risk Statements 
R11:Highly Flammable.
R36/37/38:Irritating to eyes, respiratory system and skin .
Safety Statements 
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
RIDADR  UN 1325 4.1/PG 2
WGK Germany  3
TSCA  Yes
HazardClass  4.1
PackingGroup  II
HS Code  29319090

Hazard Information

Material Safety Data Sheet(MSDS)

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