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Polymethylhydrosiloxane (PMHS) is a high-molecular weight organic compound of silicon, similar in chemical structure to inorganic silicates. It is a member of the methylpolysiloxanes family, characterized by a siloxy skeleton to which various alkyl and aryl groups are attached in a regular, repetitive fashion.

9004-73-3

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9004-73-3 Usage

Uses

Used in Chemical Industry:
Polymethylhydrosiloxane is used as a reducing agent for a variety of metal catalysts, including Sn, Ti, Zn, Cu, and Pd, enabling a wide range of reductions.
Used in Cosmetic Industry:
Polymethylhydrosiloxane is used as a skin surface sealant in cosmetic preparations to reduce transepidermal water loss.
Used in Food Industry:
Polymethylhydrosiloxane is used to coat containers and molds for bakery products, candies, and confections, impregnate packaging and wrapping paper that contact foods, and reduce foaming in fermentation and canning processes. It also helps reduce thermal and oxidative deterioration of frying fat by forming a protective film at the oil-air interface.
Used in Medical Industry:
Polymethylhydrosiloxane is used to treat patients suffering from excessive gas production or retention, such as flatulence, gastric bloating, or postoperative gaseous distention. It is also used to reduce gas shadows in radiography of the bowel and improve visualization in gastroscopy. Additionally, it is employed to prevent dermal irritation in bedridden patients.

Preparation

hydrolysis of methyldichlorosilane followed by heating (60–150 °C) the resultant mixture of cyclic silanes in the presence of hexamethyldisiloxane generates the linear polysiloxane.

Check Digit Verification of cas no

The CAS Registry Mumber 9004-73-3 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 9,0,0 and 4 respectively; the second part has 2 digits, 7 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 9004-73:
(6*9)+(5*0)+(4*0)+(3*4)+(2*7)+(1*3)=83
83 % 10 = 3
So 9004-73-3 is a valid CAS Registry Number.
InChI:InChI=1/C5H12OSi/c1-7-5-3-2-4-6-7/h7H,2-5H2,1H3

9004-73-3SDS

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 Polymethylhydrosiloxane

1.2 Other means of identification

Product number -
Other names 2-Methyl-1,2-oxasilinane

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
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:9004-73-3 SDS

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