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1,3,5,7-Tetramethylcyclotetrasiloxane - 98%, high purity , CAS No.2370-88-9
Basic Description Synonyms 2,4,6,8-Tetramethylcyclotetrasiloxane|TMCTS Specifications & Purity 98% Storage Temp Store at 2-8°C,Argon charged Shipped In Wet ice Product Description Tetramethyl-cyclotetrasiloxane is a good impregnant of photoelectric material. It is used to manufacture of modified siloxane with defined hydrogen content and chain quantity. It is also used in production of silicone polymers and acts as a precursor for the deposition of polysiloxane, cyclic siloxane, silicon dioxide, oxycarbide thin films with low dielectric constant for microelectronics and semiconductors.
Names and Identifiers Pubchem Sid 488195703 Pubchem Sid Url https://pubchem.ncbi.nlm.nih.gov/substance/488195703 INCHI InChI=1S/C4H12O4Si4/c1-9-5-10(2)7-12(4)8-11(3)6-9/h1-4H3 InChi Key WZJUBBHODHNQPW-UHFFFAOYSA-N Canonical SMILES C[Si]1O[Si](O[Si](O[Si](O1)C)C)C Isomeric SMILES C[Si]1O[Si](O[Si](O[Si](O1)C)C)C WGK Germany 3 PubChem CID 6327421 UN Number 1993 Packing Group III Molecular Weight 240.51 Beilstein 1775282
Chemical and Physical Properties Solubility Miscible with most organic solvents. Immiscible with water. Sensitivity Heat & Moisture Sensitive. Refractive Index 1.387 Flash Point(°F) 77°F Flash Point(°C) 25℃ Boil Point(°C) 134-135℃ Melt Point(°C) -69℃
Safety and Hazards(GHS) Pictogram(s) GHS02 Signal Warning Hazard Statements H225: Highly Flammable liquid and vapor
H226: Flammable liquid and vapor
Precautionary Statements P280: Wear protective gloves/protective clothing/eye protection/face protection.
P370+P378: In case of fire: Use ... to extinguish.
P210: Keep away from heat, hot surface, sparks, open flames and other ignition sources. - No smoking.
P501: Dispose of contents/container to ...
P233: Keep container tightly closed.
P240: Ground/bond container and receiving equipment.
P403+P235: Store in a well-ventilated place. Keep cool.
P303+P361+P353: IF ON SKIN (or hair): Take off Immediately all contaminated clothing. Rinse SKIN with water [or shower].
P241: Use explosion-proof [electrical/ventilating/lighting/.../] equipment.
P242: Use only non-sparking tools.
P243: Take precautionary measures against static discharge.
WGK Germany 3 Class 3
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H2413616
