Dimethylcyclosiloxane

Dimethylcyclosiloxane (DMC)

Product Description
Dimethylcyclosiloxane is colorless, inflammable, and cannot dissolve in water, but can dissolve in organic solvents such as benzene, etc. It can be used to synthesize organic silicon polymer by acid or alkali catalysis to manufacture silicone oil, silicone rubber, etc.
Molecular Formula: [(CH3)2SiO]n, n=3~7
CAS No.: 69430-24-6
Flash Point: 55℃
Relative Density (water=1): 0.956

Technical index

Item	Index
Appearance	Colorless transparent liquid without visible impurity
Chroma/ Platinum-cobalt scale/ Hazen unit	≤10
Refractive index nD20	1.3960~1.3970
Content of Dimethylsiloxane cyclists mixture/%	≥99.80
Content of Hexamethyldisiloxane/%	≤0.005

Application
Primary forms of dimethylcyclosiloxanes are mainly used for ring-opening polymerization to form silicone oils, silicone rubbers, and silicone resins of different polymerization degrees. These polymers are further processed into products for a wide range of applications in construction, electronics, textiles, automotive, personal care, food, machining, and to a lesser extent, direct applications.

Packaging, Storage and Transportation
Steel drum, net weight 190kg/drum or International Bulk Container, net weight 950kg/IBC or ISO TANK. Store in a cool, dry, well-ventilated area and keep away from oxidant, acid, and alkali. It should be kept away from kindling and heat sources. Avoid direct sunlight. Transported as danger commodity.