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2,4,6,8-Tetramethylcyclotetrasiloxane  Structure

2,4,6,8-Tetramethylcyclotetrasiloxane

Chemical Properties

Melting point −69 °C(lit.)
Boiling point 134 °C(lit.)
Density  0.986 g/mL at 25 °C(lit.)
vapor pressure  0.05-479Pa at 20℃
refractive index  n20/D 1.387(lit.)
Flash point 76 °F
storage temp.  2-8°C
form  liquid
Specific Gravity 0.991
color  Colorless to Almost colorless
Viscosity 6.9mm2/s
Water Solubility  Miscible with most organic solvents. Immiscible with water.
Sensitive  Moisture Sensitive
Hydrolytic Sensitivity 3: reacts with aqueous base
BRN  1787074
InChIKey BQYPERTZJDZBIR-UHFFFAOYSA-N
LogP -2.4-5.54 at 25℃
CAS DataBase Reference 2370-88-9(CAS DataBase Reference)
EPA Substance Registry System Cyclotetrasiloxane, 2,4,6,8-tetramethyl- (2370-88-9)

Safety

Symbol(GHS)
Signal wordWarning
Hazard statements H319-H226
Precautionary statements P280a-P305+P351+P338-P501a-P210-P233-P240-P241+P242+P243-P264-P280-P303+P361+P353-P305+P351+P338+P337+P313-P370+P378-P403+P235-P501
Hazard Codes  Xi
Risk Statements  10-36
Safety Statements  16-26-36
RIDADR  UN 1993 3/PG 3
WGK Germany  3
10-21
TSCA  Yes
HazardClass  3
PackingGroup  III
HS Code  29319090
NFPA 704:
2
2 0

2,4,6,8-Tetramethylcyclotetrasiloxane Price

2,4,6,8-Tetramethylcyclotetrasiloxane Chemical Properties,Usage,Production

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