Octaphenylcyclotetrasiloxane, a chemical substance, with the molecular formula of c48h40o4si4 and the molecular weight of 793.18.


Chinese Name: octaphenylcyclotetrasiloxane Chinese alias: octylphenylcyclotetrasiloxane English Name: octaphenylcyclotetrasiloxane English alias: 2,2,4,4,6,6,8,8-octakis-phenyl-1,3,5,7,2,4,6,8-tetraoxatetrasilocane; cyclotetrasiloxane






The production method and application can be obtained by dehydration and cyclization of diphenylsilylene glycol in the presence of alkali catalyst. It is used in the synthesis of pharmaceutical intermediates or other polymers.


Properties and stability under the action of micro amount of sodium and potassium silanol, the intramolecular Si-O-Si bond breaks and rearranges, forming a mixture of direct polysiloxane and cyclosiloxane. This kind of catalytic fracture rearrangement process is characterized by equilibrium. When the ring is opened and polymerized into polymer, the polymer also breaks down. It reacts with excessive sodium hydroxide and methanol solution to produce sodium diphenylsilyl glycol.






Storage method


Store in a cool, dry and well ventilated warehouse. Keep away from fire and heat. Protect from direct sunlight. Package sealed. It shall be stored separately from acids and edible chemicals, and mixed storage shall be avoided. The storage area shall be equipped with appropriate materials to contain the leakage.