Tris(trimethylsilyl)phosphite CAS No.:1795-31-9

Product name:Tris(trimethylsilyl)phosphite (Cheeradd TMSPI)
CAS No.:1795-31-9
Density(25℃):0.893 g/cm3
Refractive Index: 1.409
Melting Point: 78~81℃
Flash Point: 110℃


Quality specification:




Colorless transparent liquid

Purity (GC, %)

≥ 95.00


It is mainly used as electrolyte additive for power lithium-ion battery. It significantly improves low temperature performance and normal temperature cycle performance. Enhance high temperature performance.

For samples, opened only in dry atmosphere (glove box or dry room), sealed again and stored in cool and dry place after used. For products, packed in stainless steel drum, it should be pressured out under positive pressure in drum and transported by coupling the plug on drum with the socket equipped on flexible pipe.

Package and Storage
The product is packed in stainless steel drum which equipped quick coupler and filled with nitrogen gas in inner, net weight 15KG per drum. Samples are packed in aluminum bottle which is wrapped outside with aluminum foil pack.
The product is strictly forbid exposing to the sun. When keep tightly storing in cool and dry place below 25℃ ambient temperatures, it has a shelf life of six months from date of production.