Octamethyl cyclotetrasiloxane D4 cas 556-67-2

Octamethyl cyclotetrasiloxane D4 cas 556-67-2

Physical and Chemical Properties

Colorless oily liquid.
Sensitive to moisture.
Miscible with organic solvents, insoluble in water.
Relative density 0.9558
Melting point 17～18℃
Boiling point 175～176℃
Refractive index(n20D) 1.3968
Flash point 60°C
Flammable

main application

Primary dimethyl cyclic siloxanes are mainly used for ring-opening polymerization to form silicone oils, silicone rubbers and silicone resins with different degrees of polymerization. These polymers are further processed into products for a wide range of applications in various fields such as construction, electronics, textiles, automotive, personal care, food, machining, etc., as well as a small number of direct applications.