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141-63-9

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141-63-9 Usage

Chemical Properties

clear colorless liquid

Uses

A non-cyclic polydimethyl siloxane. Study shows that it can be transformed by a specific microflora and in the natural environment degraded by mechanisms similar to other organic compounds.

Definition

ChEBI: An organosiloxane that is pentasiloxane in which all the hydrogens have been replaced by methyl groups. Metabolite observed in cancer metabolism.

Flammability and Explosibility

Nonflammable

Check Digit Verification of cas no

The CAS Registry Mumber 141-63-9 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 1,4 and 1 respectively; the second part has 2 digits, 6 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 141-63:
(5*1)+(4*4)+(3*1)+(2*6)+(1*3)=39
39 % 10 = 9
So 141-63-9 is a valid CAS Registry Number.
InChI:InChI=1/C12H36O4Si5/c1-17(2,3)13-19(7,8)15-21(11,12)16-20(9,10)14-18(4,5)6/h1-12H3

141-63-9 Well-known Company Product Price

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  • Aldrich

  • (447269)  Dodecamethylpentasiloxane  97%

  • 141-63-9

  • 447269-10ML

  • 466.83CNY

  • Detail
  • Aldrich

  • (447269)  Dodecamethylpentasiloxane  97%

  • 141-63-9

  • 447269-50ML

  • 1,600.56CNY

  • Detail

141-63-9SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 12, 2017

Revision Date: Aug 12, 2017

1.Identification

1.1 GHS Product identifier

Product name dodecamethylpentasiloxane

1.2 Other means of identification

Product number -
Other names bis[[dimethyl(trimethylsilyloxy)silyl]oxy]-dimethylsilane

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only. Functional fluids (closed systems),Intermediates,Solvents (which become part of product formulation or mixture)
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:141-63-9 SDS

141-63-9Downstream Products

141-63-9Relevant articles and documents

One-Step Synthesis of Siloxanes from the Direct Process Disilane Residue

Neumeyer, Felix,Auner, Norbert

supporting information, p. 17165 - 17168 (2016/11/23)

The well-established Müller–Rochow Direct Process for the chloromethylsilane synthesis produces a disilane residue (DPR) consisting of compounds MenSi2Cl6?n(n=1–6) in thousands of tons annually. Technologically, much effort is made to retransfer the disilanes into monosilanes suitable for introduction into the siloxane production chain for increase in economic value. Here, we report on a single step reaction to directly form cyclic, linear, and cage-like siloxanes upon treatment of the DPR with a 5 m HCl in Et2O solution at about 120 °C for 60 h. For simplification of the Si?Si bond cleavage and aiming on product selectivity the grade of methylation at the silicon backbone is increased to n≥4. Moreover, the HCl/Et2O reagent is also suitable to produce siloxanes from the corresponding monosilanes under comparable conditions.

PROCESS FOR STABILIZATION OF SILOXANE COMPOUNDS

-

Page 7, (2008/06/13)

A method for stabilizing silicone dry cleaning solvents containing impurities, comprising contacting the silicone solvent with an adsorbent, neutralizing agent or combination thereof to purify the solvent and prevent reequilibration and polymerization, and separating the silicone solvent.

Kinetics and mechanism of the reaction between oligosiloxanes and P-trichloro-N-dichlorophosphoryl monophosphazene (Cl3P=N-POCl2)

Meliani, Abdeslam,Vaugeois, Yann,Bali, Hamza,Mazzah, Ahmed,De Jaeger, Roger,Habimana, Jean

, p. 283 - 301 (2007/10/03)

31P NMR investigation has been made of the action of Cl3P=N-POCl2 (I) first on hexamethyldisiloxane (Me3Si)2O and then on oligosiloxanes Me3Si-(OSiMe2)n-OSiMe3 n = 2 and n=3. The reactions were carried out in bulk or in solution with molar ratios siloxane/(I) varying from 1 to 5. It was demonstrated that only the monosubstitution of a chlorine atom by the -(OSiMe2)n-OSiMe3 species n = 0, 2, 3 with elimination of trimethylchlorosilane occurred leading to the derivatives Cl2OP-N=PCl2O-(SiMe2-O)nSiMe 3 (II). For n=2, 3 the siloxane redistribution reactions were observed by 29Si NMR analysis. A two steps mechanism is proposed, consisting in a nucleophilic substitution, involving a tricoordinate phosphazenium intermediate, followed by the formation of an active ionic centre probably an oxonium ion, arising from the solvatation by the siloxane of this phosphazenium ion and /or of (II) leading to the redistribution reactions. The influences of the solvent, of trimethylchlorosilane, of the temperature, and of the addition of a protonated species (MDH) were investigated.

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