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  7. 1,1,3,3-Tetramethyldisiloxane, 97%

1,1,3,3-Tetramethyldisiloxane, 97%

Catalog No. AAB2369714
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Catalog No. Quantity
AAB2369714 25 g
AAB2369722 100 g
AAB2369736 500 g
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Catalog No. AAB2369714

Supplier: Thermo Scientific Chemicals B2369714

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Description

CAS: 3277-26-7 | C4H12OSi2 | 132.309 g/mol

1,1,3,3-Tetramethyldisiloxane is used as a monomer in the production of silicone polymers or silicone resins. It is used as a precursor to prepare other organosilicon compounds. It is also utilized in non-aqueous polymer preparation as well as a laboratory reagent.

This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

Applications
1,1,3,3-Tetramethyldisiloxane is used as a monomer in the production of silicone polymers or silicone resins. It is used as a precursor to prepare other organosilicon compounds. It is also utilized in non-aqueous polymer preparation as well as a laboratory reagent.

Solubility
It reacts with water to produce dimethylsilanol, dimethylsilanediol and hydrogen gas.

Notes
Moisture sensitive. Keep away from sources of ignition. Store in cool place.

Chemical Identifiers

CAS 3277-26-7
Molecular Formula C4H12OSi2
Molecular Weight (g/mol) 132.309
MDL Number MFCD00008256
InChI Key KWEKXPWNFQBJAY-UHFFFAOYSA-N
Synonym 1,1,3,3-tetramethyldisiloxane, tetramethyldisiloxane, dimethylsilyl ether, bis dimethylsilyl ether, bis dimethylsilyl oxide, 1,3-dihydrotetramethyldisiloxane, sym-tetramethyldisiloxane, disiloxane, tetramethyl, dsstox_cid_30574, dsstox_gsid_52010
PubChem CID 6327482
IUPAC Name dimethylsilylideneoxonio(dimethyl)silanide
SMILES C[Si-](C)[O+]=[Si](C)C

Specifications

Boiling Point 70°C to 71°C
Melting Point -78°C
Quantity 25 g
UN Number UN1993
Beilstein 1733364
Flash Point −26°C (−15°F)
Solubility Information It reacts with water to produce dimethylsilanol,dimethylsilanediol and hydrogen gas.
Formula Weight 134.33
Percent Purity 97%
Odor Characteristic
Refractive Index 1.37
Sensitivity Moisture sensitive
Density 0.76
Chemical Name or Material 1,1,3,3-Tetramethyldisiloxane
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Safety and Handling

Hazard Category H225
Hazard Statement GHS H Statement
H225
Highly flammable liquid and vapour.
Precautionary Statement P210-P233-P235-P240-P241-P242-P243-P261-P271-P280-P303+P361+P353-P304+P340-P312-P370+P378q-P501c
DOTInformation Transport Hazard Class: 3; Packing Group: II; Proper Shipping Name: FLAMMABLE LIQUIDS, N.O.S.
EINECSNumber 221-906-4
RTECSNumber JN1000000
TSCA Yes
Recommended Storage Ambient temperatures; Store under Nitrogen

RUO – Research Use Only