Project Description

Chemical NameOctamethylcyclotetrasiloxane
CAS No.556-67-2
Molecular Formula:C8H24O4Si4
EINECS209-136-7
Molecular Weight:296.62
Applications:

It can be used to synthesize organic silicon polymer by acid or alkali catalysts to manufacture silicone oil, silicone rubber. It’s can also be used directly as treating agent for rubber gap filler strips and the raw material for cosmetic.

Synonyms: REQ;zinc and double PHD fingers family 2;STRAY LIGHT FILTER(260NM) RSPEC00371;Dimethylsiloxane cyclic tetramer≥ 97% (assay);D4 Octamethylcyclotetrasiloxane;Cyclomethicone 4;DIMETHYLSILOXANE CYCLIC TETRAMER;D4

Appearance: Colorless transparent liquid, without visible impurity

Contact us for  D4 Cyclomethicone, Octamethylcyclotetrasiloxane CAS 556-67-2  MSDS -Material Safety Data Sheet and Octamethylcyclotetrasiloxane COA-Certificate of Analysis, Product Data Sheet – in PDF Document.

ChinaD4 Cyclomethicone  Supplier, Octamethylcyclotetrasiloxane Manufacturers with REACH Registration,China CAS 556-67-2 Supplier,  EINECS: 209-136-7 Supplier

Packing:

1).190kg/iron drum, 4 drum with a pallet, 80 drum(15.2T) to be shipped in 1×20’ FCL;

2).950kg/IBC, 18 IBC(17.1T) to be shipped in 1×20’ FCL

Melting point:17-18 °C(lit.)
Boiling point:175-176 °C(lit.)
Density0.956 g/mL at 25 °C(lit.)
vapor density1 (vs air)
refractive indexn20/D 1.396(lit.)
Flash point:140 °F
storage temp.2-8°C
solubility<0.001g/l Hydrolysis
formliquid
colorcolorless
explosive limit0.4-11.7%(V)
Water SolubilityINSOLUBLE
SensitiveMoisture Sensitive
Merck146,747
BRN1787074
InChIKeyHMMGMWAXVFQUOA-UHFFFAOYSA-N

Symbol(GHS) 

GHS02,GHS06,GHS08
Signal word 
Warning
Hazard statements 
H302-H311-H226-H361-H413
Precautionary statements 
P303+P361+P353-P501a-P281-P210-P280-P370+P378-P201-P202-P233-P240-P241+P242+P243-P264-P270-P273-P301+P312+P330-P302+P352+P312+P361+P364-P308+P313-P403+P235-P405-P501
Hazard Codes 
Xn
Risk Statements 
53-62-10
Safety Statements 
36/37-46-51-61
RIDADR 
UN 1993 3/PG 3
WGK Germany 
1
RTECS 
GZ4397000
TSCA 
Yes
HazardClass 
3
PackingGroup 
III

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