Pentamethyldisiloxane

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Pentamethyldisiloxane

Product Name: Pentamethyldisiloxane
CAS No.: 1438-82-0
Chemical Name: Pentamethyldisiloxane
Synonyms: DK541;DKSI147;DKSI005;DKFELEX0132;PENTAMETHYLDISILOXANE;pentamethyl-disiloxan;Disiloxane,pentamethyl-;PENTAMETHYLDISILOXANE 97+%;Trimethylsiloxydimethylsilane;(Trimethylsiloxy)dimethylsilane
CBNumber: CB9413159
Molecular Formula: C5H16OSi2
Formula Weight: 148.35
MOL File: 1438-82-0.mol

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Pentamethyldisiloxane Property

Boiling point:: 86 °C (lit.)
Density: 0.760 g/mL at 20 °C (lit.)
refractive index: n20/D 1.373
Flash point:: -9°C
form: clear liquid
color: Colorless to Almost colorless
Specific Gravity: 0.758
Water Solubility: Not miscible or difficult to mix in water.
Sensitive: Moisture Sensitive
Hydrolytic Sensitivity: 3: reacts with aqueous base
BRN: 1734568
InChI: InChI=1S/C5H16OSi2/c1-7(2)6-8(3,4)5/h7H,1-5H3
InChIKey: AOJHDNSYXUZCCE-UHFFFAOYSA-N
SMILES: [Si](C)(C)(C)O[SiH](C)C
EPA Substance Registry System: Disiloxane, pentamethyl- (1438-82-0)

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Safety

Hazard Codes: F
Risk Statements: 11
Safety Statements: 16-23-24/25
RIDADR: UN 1993 3/PG 2
WGK Germany: 3
F: 10-21
TSCA: Yes
HazardClass: 3
PackingGroup: II
HS Code: 29319090

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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word: Danger
Hazard statements: H225Highly Flammable liquid and vapour
Precautionary statements: P210Keep away from heat/sparks/open flames/hot surfaces. — No smoking.

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N-Bromosuccinimide Price

Sigma-Aldrich

Product number: 76840
Product name: Pentamethyldisiloxane
Purity: ≥95.0%
Packaging: 5ml
Price: $94.7
Updated: 2024/03/01

TCI Chemical

Product number: P1535
Product name: 1,1,1,3,3-Pentamethyldisiloxane
Purity: >95.0%(GC)
Packaging: 5mL
Price: $51
Updated: 2024/03/01

TCI Chemical

Product number: P1535
Product name: 1,1,1,3,3-Pentamethyldisiloxane
Purity: >95.0%(GC)
Packaging: 25mL
Price: $150
Updated: 2024/03/01

Alfa Aesar

Product number: L16577
Product name: Pentamethyldisiloxane, 95%
Packaging: 5g
Price: $64.65
Updated: 2024/03/01

Alfa Aesar

Product number: L16577
Product name: Pentamethyldisiloxane, 95%
Packaging: 25g
Price: $257
Updated: 2024/03/01

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Pentamethyldisiloxane Chemical Properties,Usage,Production

Uses

Pentamethyldisiloxane, is an organosilicon compound used in synthesis of siloxane-polyether copolymer surfactants. Pentamethyldisiloxane can also be used as source of the trimethylsilyl functional group in organic synthesis.

Uses

Pentamethyldisiloxane is used in the synthesis of siloxane-polyether copolymer surfactants. It is also used as source of trimethylsilyl functional group in organic synthesis.

Synthesis

Take prepared potassium trimethylsilanolate 1.12kg in 2L of anhydrous tetrahydrofuran, was added dropwise with stirring dimethylchlorosilane1kg, dropwise, room temperature reaction 1h, filtered, concentrated, extracted with ether, dried and concentrated to give a high purity of 98% or more of pentamethyl disiloxane 1.2kg.

Pentamethyldisiloxane Preparation Products And Raw materials

Raw materials

Preparation Products

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View Lastest Price from Pentamethyldisiloxane manufacturers

Hebei Zhuanglai Chemical Trading Co Ltd

Product: Pentamethyl-disiloxan 1438-82-0
Price: US $79.00-38.00/kg
Min. Order: 1kg
Purity: 99%
Supply Ability: 20ton
Release date: 2024-12-24

Hebei Zhuanglai Chemical Trading Co Ltd

Product: Pentamethyldisiloxane 1438-82-0
Price: US $79.00-38.00/kg
Min. Order: 1kg
Purity: 99%
Supply Ability: 20ton
Release date: 2024-12-24

Hubei Changfu Chemical Co., Ltd.

Product: 1,1,1,3,3-Pentamethyldisiloxane 1438-82-0
Price: US $0.00/kg
Min. Order: 1kg
Purity: 95
Supply Ability: 20 tons
Release date: 2024-12-19

1438-82-0, PentamethyldisiloxaneRelated Search:

Sodium thiosulfate pentahydrate 1,3-BIS(3-AMINOPROPYL)TETRAMETHYLDISILOXANE 1,3-Bis(chloromethyl)-1,1,3,3-tetramethyldisiloxane DECAMETHYLTETRASILOXANE 1,3-BIS(DICHLOROMETHYL)-1,1,3,3-TETRAMETHYLDISILOXANE Hexamethyldisiloxane HEXAPHENYLDISILOXANE 1,3-BIS(4-HYDROXYBUTYL)TETRAMETHYLDISILOXANE HEXAETHYLDISILOXANE 3,3-DIPHENYLHEXAMETHYLTRISILOXANE 1,3-bis(3-glycidoxypropyl)tetramethyldisiloxane Divinyltetramethyldisiloxane DODECAMETHYLPENTASILOXANE Octamethyltrisiloxane 1,3-Diphenyl-1,1,3,3-tetramethyldisiloxane 1,3-BIS(ACETOXYMETHYL)-1,1,3,3-TETRAMETHYLDISILOXANE BIS(BROMOMETHYL)TETRAMETHYLDISILOXANE 1,3-BIS(3-CYANOPROPYL)TETRAMETHYLDISILOXANE

pentamethyl-disiloxan

PENTAMETHYLDISILOXANE

PENTAMETHYLDISILOXANE 97+%

(Trimethylsiloxy)dimethylsilane

1,1,1,3,3-Pentamethylpropanedisiloxane

2,2,4-Trimethyl-3-oxa-2,4-disilapentane

Trimethylsiloxydimethylsilane

Dimethyl(trimethylsilyloxy)silane

1,1,1,3,3-Pentamethyldisiloxane

1,1,1,3,3-Pentamethyl-disiloxane

Disiloxane,pentamethyl-

[(dimethylsilyl)oxy]trimethylsilane

Disiloxane, 1,1,1,3,3-pentamethyl-

DK541

DKFELEX0132

DKSI147

DKSI005

1438-82-0

CH33SiOSiHCH32

C5H16OSi2

Organosilicon

Organometallic Reagents

Siloxanes

Chemical Synthesis

Organometallic Reagents

Organosilicon

Siloxanes