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Hexamethyldisiloxane, Hexamethyldisilane
1, Hexamethyldisiloxane
Synonym: HMDSO; Hexamethyl Disiloxane; MM; HMDO
CAS No.:107-46-0
Molecular Formula:(CH3)3SiOSi(CH3)3
Molecular Weight:162.3
Properties: Colorless, transparent, and nontoxic liquid.
Applications: It is used as end capping agent, cleaning agent, and mould release agent mainly in the organic chemical industry and medicine chemical industry.
Technical Index:
Content of Hexamethyldisiloxane(%): 99.0min
Content of Silanol(%): 1.0max
Refractive Index( 
): 1.3748
Density(25℃)g/cm3: 0.762-0.770
Viscosity(25℃)mm2.s-1: 0.65
Melting Point: 68℃
Boiling Point: 100℃
Flash Point: 1℃
Package: plastic drum. Net weight:150kg,160kg.
Storage: Store at -50℃-45℃. It is prohibited to contact open fire, and shall be kept ventilating, drying, and prevented from sunshine. Storage life:2 years.
Transportation: It shall be prevented from collision, rain drenching and sunshine, transported and stored according to the standard for dangerous chemicals.
2, Hexamethyldisilane
Synonym: HMD ; Hexamethyl disilylamine
CAS No.:1450-14-2
Molecular formula:(CH3)3SiSi(CH3)3
Molecular Weight:146.37
Properties: Colorless, transparent liquid with pleasant fruit odour. It doesn't dissolve into water, but it can dissolve into organic solvent, such as dimethyl benzene, benzol, dimethoxy-ethane, ect.
Applications: It is used in medical synthesis, and used as termination agent for the chain of polycarbosilane.
Technical Index:
Content of Hexamethyldisilane(%): 99.0min
Refractive Index(
): 1.4224
Density(20℃)g/cm3: 0.715
Boiling Point(℃): 113
Melting Point(℃): 12
Package: Iron drum or plastic drum.Net weight:130kg
Storage: Store at -45℃~45℃. It is prohibited to contact open fire, and shall be kept ventilating, drying, and avoided from contact with acids and alkalis. Storage life:1 year.
Transportation: It shall be transported and stored according to the standard for dangerous chemicals, and prevented from rain and sunshine.