556-67-2|Octamethyl cyclotetrasiloxaneProducts Supply

Octamethyl cyclotetrasiloxane cas no:556-67-2

Synonyms: Octamethyl cyclotetrasilazane; octaphenyl silsesquioxane

Identification

NameOctamethyl cyclotetrasiloxane
CAS556-67-2
SynonymsOctamethyl cyclotetrasilazane; octaphenyl silsesquioxane
EINECS(EC#)209-136-7
Molecular FormulaC8H24O4Si4
Molecular Weight296.62

Chemical Properties

AppearanceColorless clear liquid
refractive index1.395-1.397
storage temp2-8°C
Sensitive Moisture Sensitive

Globally Harmonized System of Classification adn Labelling of Chemicals(GHS)

Hazardclass3

Safety Data

Hazard Xn:Harmful
Risk R53;R62
Safety

A skin irritant. When heated to decomposition it emits acrid smoke and irritating vapors.
Hazard Codes:?XiXnFN
Risk Statements: 20-59-36/37/38-11-67-65-63-48/20-38-20/21-50/53?
R20: Harmful by inhalation
R59: Dangerous to the ozone layer
R36/37/38: Irritating to eyes, respiratory system and skin
R11: Highly flammable
R67: Vapours may cause drowsiness and dizziness
R65: Harmful: may cause lung damage if swallowed
R63: Possible risk of harm to the unborn child
R38: Irritating to skin
R20/21: Harmful by inhalation and in contact with skin
R50/53: Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment
Safety Statements: 60-61-62-36/37-59?
S60: This material and its container must be disposed of as hazardous waste
S61: Avoid release to the environment. Refer to special instructions / safety data sheets
S62: If swallowed, do not induce vomitting; seek medical advice immediately and show this container or label
S36/37: Wear suitable protective clothing and gloves
S59: Refer to manufacturer / supplier for information on recovery / recycling
RIDADR: UN 2924 3/PG 2
WGK Germany: 3
F: 3-10-19-21
TSCA: Yes
HazardClass: 3
PackingGroup: II
HS Code: 29310095

Toxicity

1.	???	skn-rbt 500?mg/24H MLD	???	85JCAE ?? Prehled Prumyslove Toxikologie; Organicke Latky Marhold, J.,Prague, Czechoslovakia.:?Avicenum,1986,1230.
2.	???	eye-rbt 500?mg/24H MLD	???	85JCAE ?? Prehled Prumyslove Toxikologie; Organicke Latky Marhold, J.,Prague, Czechoslovakia.:?Avicenum,1986,1230.

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Wacker Chemie AG: Tel:+49-(89)-6279-0; Address: Hanns-Seidel-place 4, M?nchen 81737,

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Gelest Inc.: Tel:+1-(215)-547-1015; Address: 11 East Steel Road, Morrisville, Pennsylvania 19067,

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Hangzhou RJ: Tel:+86-15967107774; Address: Hangzhou

Hangzhou Ruijiang Chemical Co.,Ltd: Tel:86-571-28006096; Address: 12th Floor, No.99, Huaxing Road,Hangzhou,Zhejiang,China

Hangzhou Jiatuo chemical co.,ltd: Tel:13588782353; Address: Hangzhou

Octamethyl cyclotetrasiloxane cas no:556-67-2

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