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
