235679

Decamethyltetrasiloxane

97%

• Synonym(s): 1,1,1,3,3,5,5,7,7,7-Decamethyltetrasiloxane, 1,1,3,3-Tetramethyl-1,3-bis(trimethylsiloxy)disiloxane, [Dimethyl(trimethylsilyloxy)silyl]oxy-dimethyl-trimethylsilyloxysilane
• Linear Formula: (CH₃)₃SiO[Si(CH₃)₂O]₂Si(CH₃)₃
• CAS Number: 141-62-8
• Molecular Weight: 310.69
• Beilstein/REAXYS Number: 1776881
• EC Number: 205-491-7
• MDL number: MFCD00008263
• UNSPSC Code: 12352103
• PubChem Substance ID: 24853991
• NACRES: NA.22

Properties

• vapor density: >1 (vs air)
• Quality Level: 100
• assay: 97%
• form: liquid
• refractive index: n20/D 1.389 (lit.)
• bp: 194 °C (lit.)
• mp: −68 °C (lit.)
• density: 0.854 g/mL at 25 °C (lit.)
• SMILES string: C[Si](C)(C)O[Si](C)(C)O[Si](C)(C)O[Si](C)(C)C
• InChI: 1S/C10H30O3Si4/c1-14(2,3)11-16(7,8)13-17(9,10)12-15(4,5)6/h1-10H3
• InChI key: YFCGDEUVHLPRCZ-UHFFFAOYSA-N

Safety Information

• pictograms: GHS09
• signalword: Warning
• hcodes: H410
• pcodes: P273 - P391 - P501
• Hazard Classifications: Aquatic Acute 1 - Aquatic Chronic 1
• Storage Class: 10 - Combustible liquids
• wgk_germany: WGK 3
• flash_point_f: 143.6 °F - closed cup
• flash_point_c: 62 °C - closed cup
• ppe: Eyeshields, Gloves, multi-purpose combination respirator cartridge (US)