Basic introduction 
CAS No .: 541-05-9 
Product name: Hexamethylcyclotrisiloxane; 
MDL: MFCD00005943 [1] 

Molecular formula: C6H18O3Si3 
Molecular weight: 222.46 
MOL File: 541-05-9.mol 
Melting point: 50-64 ° C (lit.) 
Boiling point: 134 ° C (lit.) 
Density: 1.02 
Vapor Density: 1 (vs air) 
Flash point: 95 ° F 
Storage conditions: Flammables area 
Water solubility: may decompose 
Sensitivity: Moisture Sensitive moisture waterproof 
Stability:. Stable, but moisture sensitive Incompatible with strong oxidizing agents. 
Properties: white crystal, Melting point75 ℃, shrinkage of 0.6-0.8% for silicone rubber shrunk

Operating procedures 
1. The compounding ratio: Hexamethylcyclotrisiloxane: mix = 1: 1 (mass ratio) mixed uniformly to obtain a shrink agent. 
2. vulcanization: Press the requirements shrink agent is added to the mixed silicone rubber mixing uniformly, after a period of cure, then at 180 degrees Celsius for one hour twice a cure. 
Storage Method 
Hexamethylcyclotrisiloxane stored in a cool, dry, well-ventilated warehouse. Away from fire and heat sources. Prevent direct sunlight. Package seals should be with acids, food chemicals stored separately, avoid mixing reservoir. The storage area should be equipped with suitable material spill . 
In addition to generally used synthetic silicone polymers, can also be used to prepare specific organic silicon compound, as various surface treatment agents, coupling agents, crosslinking agents, etc.

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