ChemicalBook > CAS DataBase List > Poly(dimethylsiloxane)

Poly(dimethylsiloxane)

Product Name
Poly(dimethylsiloxane)
CAS No.
9016-00-6
Chemical Name
Poly(dimethylsiloxane)
Synonyms
Simethicone;Dimethylpolysiloxane;SILICONE FLUID;POLYDIMETHYLSILOXANE, TRIMETHYLSILOXY TERM;baros;silain;Dimethylpolysiloxan;Simethicone Emulsion 30%;dimethyl(l1-oxidaneyl)-l3-silane;POLYDIMETHYLSILOXANES, TRIMETHYLSILOXY TERMINATED
CBNumber
CB3696473
Molecular Formula
(C2H6OSi)n
Formula Weight
94.18664
MOL File
9016-00-6.mol
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Poly(dimethylsiloxane) Property

Melting point:
-35°C
Boiling point:
155-220°C
Density 
0.971
vapor pressure 
5 mm Hg ( 20 °C)
refractive index 
1.4035
Flash point:
63°C
storage temp. 
Refrigerator
solubility 
Chloroform (Slightly), Methanol (Slightly)
form 
Viscous Liquid
Specific Gravity
0.918
color 
Colorless
Water Solubility 
INSOLUBLE
Stability:
Stable. Flammable or combustible. Flammability depends upon extent of polymerization. Incompatible with strong oxidizing agents.
EPA Substance Registry System
Poly[oxy(dimethylsilylene)] (9016-00-6)
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Safety

Risk Statements 
36/37/38
Safety Statements 
24/25
RIDADR 
1993
WGK Germany 
2
RTECS 
TQ2690000
TSCA 
Yes
HazardClass 
3
HS Code 
39100000
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Danger
Hazard statements

H226Flammable liquid and vapour

H227Combustible liquid

Precautionary statements

P210Keep away from heat/sparks/open flames/hot surfaces. — No smoking.

P240Ground/bond container and receiving equipment.

P241Use explosion-proof electrical/ventilating/lighting/…/equipment.

P303+P361+P353IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.

P403+P235Store in a well-ventilated place. Keep cool.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
1546300
Product name
Polydimethylsiloxane
Purity
United States Pharmacopeia (USP) Reference Standard
Packaging
500mg
Price
$491
Updated
2024/03/01
Alfa Aesar
Product number
042490
Product name
Polydimethylsiloxane, trimethylsiloxy terminated, M.W. 14,000
Packaging
50ml
Price
$22.65
Updated
2024/03/01
Alfa Aesar
Product number
042490
Product name
Polydimethylsiloxane, trimethylsiloxy terminated, M.W. 14,000
Packaging
1L
Price
$124.65
Updated
2024/03/01
Sigma-Aldrich
Product number
PHR1518
Product name
Polydimethylsiloxane
Purity
Pharmaceutical Secondary Standard; Certified Reference Material
Packaging
1g
Price
$103
Updated
2024/03/01
Sigma-Aldrich
Product number
DMPSV
Product name
Dimethylpolysiloxane
Purity
viscosity 5 cSt (25 °C)(lit.)
Packaging
500g
Price
$162
Updated
2024/03/01
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Poly(dimethylsiloxane) Chemical Properties,Usage,Production

Chemical Properties

colourless liquid with a viscosity, The polydimethylsiloxane materials are excellent examples of silicones because of their chemical properties and widespread industrial use. They can be manufactured as gels, resins, fluids, or elastomers, depending on the cross-linking characteristics. Toxicity testing using polydimethylsiloxane compounds on animals has found little, if any, harmful effects associated with chronic exposure. These tests include oral dosing and teratogenicity testing (Cutler et al., 1974; Kennedy et al., 1976). Human health effects associated with silicone implants have been reported. Polydimethylsiloxane is the most prevalent silicone used medically and has been incorporated into many prostheses, including breast implants.

Uses

Antiflatulent.

Uses

Silicones are polymeric materials having silicon and oxygen on their composition. They are largely inert compounds usually heat-resistant, nonstick, and rubberlike. Polydimethylsiloxane (PDMS, molecular formula (C2H6OSi)n, density 965 kg/m3, boiling point: < 200℃, shear modulus between 100 kPa and 3 MPa, loss tangent less than 0.001) is a viscoelastic polymer (elastomer). PDMS is widely used in microfluidic technology thanks to some of its unique properties: it is low cost, nontoxic, chemically resistant, and stable against humidity and temperature variations. PDMS also presents low interfacial energy, which allows it to avoid chemical interactions with other polymers and solutions in the microfluidic channels. After polymerization and cross-linking, solid PDMS presents hydrophobic surface. A treatment using plasma oxidation is frequently used to alter the surface chemistry by adding silanol (SiOH) groups to the surface terminations and make the surface hydrophilic (wettable). PDMS is usually used as sealant, structural microchannel material or elastomer stamping matrix in soft lithography techniques like microcontact printing and micromolding.

Uses

Poly(dimethylsiloxane) is an antifoaming agent used in fats and oils. It prevents foaming and spattering when oils are heated and prevents foam formation during the manufacture of wine, refined sugar, gelatin, and chewing gum. It is also termed methyl polysilicone and methyl silicone.

brand name

Gas-X (Novartis); Mylanta Gas Relief (Johnson & Johnson-Merck Consumer); Mylicon Infant’s Drops (Johnson & Johnson-Merck Consumer); Sentry Simethicone (Witco); Sentry Simethicone Emulsion (Witco).

General Description

Colorless odorless liquid, Floats on water.

Air & Water Reactions

Insoluble in water.

Reactivity Profile

Poly(dimethylsiloxane) is a weak reducing agent.

Health Hazard

Contact of liquid with eyes may cause temporary discomfort. Does not irritate skin. Harmless when ingested.

Pharmaceutical Applications

Simethicone is a mixture of poly(dimethyl siloxane) and silica gel, known for their antifoaming properties. It is an orally administered suspension containing polysiloxanes and silicon dioxide. It is an antifoaming agent and is used to reduce bloating by decreasing the surface tension in bubbles. Excessive formation of gas bubbles in the stomach and intestines can be painful and can also be of hindrance for any ultrasound examination. Simethicone can be found in antacids and in suspensions given to babies against colic.

Biochem/physiol Actions

Dimethylpolysiloxane is a silicon-based organic polymer, inert and non-toxic. It is applicable in the pharmaceutical, food, and cosmetic industry. Dimethylpolysiloxane is excreted unchanged unaltered in the faeces and is non-mutagenic.

Poly(dimethylsiloxane) Preparation Products And Raw materials

Raw materials

Preparation Products

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View Lastest Price from Poly(dimethylsiloxane) manufacturers

Hebei Zhuanglai Chemical Trading Co Ltd
Product
Poly(dimethylsiloxane) 9016-00-6
Price
US $79.00-38.00/kg
Min. Order
1kg
Purity
99%
Supply Ability
20ton
Release date
2024-12-03
WUHAN FORTUNA CHEMICAL CO., LTD
Product
Poly(dimethylsiloxane) 9016-00-6
Price
US $0.00/KG
Min. Order
1KG
Purity
98%min
Supply Ability
30tons/month
Release date
2023-01-13
Hebei Weibang Biotechnology Co., Ltd
Product
Poly(dimethylsiloxane) 9016-00-6
Price
US $10.00/KG
Min. Order
1KG
Purity
99%
Supply Ability
10 mt
Release date
2024-11-13

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