Dimethylcyclosiloxane Mixture(DMC)
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Product Description
Product Details
Introduction
Dimethylcyclosiloxane Mixture (DMC) is a transparent low-viscosity silicone ring mixture composed of tetramer (D4) and pentamer (D5), which is a volatile non-ionic silicone intermediate. This product has good volatility, diffusivity, thermal stability and chemical inertness, and is an important raw material for polydimethylsiloxane (silicone oil) and various silicone materials.
Quality standard
| Item | Index |
| Appearance | Colorless transparent oily liquid |
| Refractive index nD20 | 1.3960~1.3970 |
| Hexamethyldisiloxane (MM) mass fraction % | ≤0.01 |
| Chroma/ Hazen unit (platinum-cobalt color number) | ≤10 |
| Total ring mass fraction % | ≥99.5 |
| Acid (in terms of HCl) mass fraction % | ≤0.001 |
Application
This product is colorless, flammable, insoluble in water, soluble in organic solvents such as benzene, and has a freezing point of 0~50℃. It polymerizes into organic silicon polymers under acid and alkali catalysis and is used in the production of silicone oil, silicone rubber, etc.
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