Basic Information of CAS 9005-12-3 Phenyl Dimethicone

Product Name: Polyphenylmethylsiloxane (Phenylmethylsiloxane/Phenyldimethylpolysiloxane)

CAS: 9005-12-3

Standard English product name: Polyphenylmethyldimethylsiloxane

INCI Name: Phenyl Dimethicone

Repetitive unit formula: (C7H8OSi)n

Physicochemical properties

Appearance: Colorless to pale yellow transparent oily liquid

Density (25 ℃): 1.09~1.12 g/cm ³

Flash point:>300 ℃

Low temperature characteristics: low pour point, low temperature resistance, not easy to solidify.

Thermal stability: far superior to ordinary dimethyl silicone oil, long-term use temperature can reach 200-250 ℃

Solubility: soluble in aromatic hydrocarbons, esters, and chlorinated solvents; Compatibility with mineral oil and many organic resins is better than that of ordinary dimethyl silicone oil.

Core Features

- Resistant to high temperatures and oxidation, not easily cracked or coking at high temperatures;

- Excellent thermal conductivity, commonly used as a thermal conductive medium;

- UV resistant and radiation resistant;

- Good compatibility with aromatic organic compounds;

- Excellent electrical insulation performance;

Main application 

1) Industrial sector (bulk use) 

- High and low temperature testing equipment with constant temperature medium 

2) Cosmetics industry 

- Makeup dispersing agent, improves powder spreading.

Differentiation reminder: Different benzene content can be divided into DC550 (low phenyl) and DC710 (high phenyl), with various viscosity specifications. Purchasing must confirm the viscosity index.

Packaging and storage 

packaging: 25kg plastic drum/200kg plastic drum