Tris(trimethylsilyl) Phosphite (TTMSP) CAS 1795-31-9 Purity >95.0% (GC) Lithium-ion Battery Additive
Shanghai Ruifu Chemical Co., Ltd. is the leading manufacturer and supplier of Tris(trimethylsilyl) Phosphite (TTMSP) (CAS: 1795-31-9) with high quality, commercial production. We can provide worldwide delivery, small and bulk quantities available, strong after-sale service. Welcome to order. Please contact: alvin@ruifuchem.com
Chemical Name | Tris(trimethylsilyl) Phosphite |
Synonyms | TTMSP; Phosphorous Acid Tris(trimethylsilyl) Ester |
CAS Number | 1795-31-9 |
CAT Number | RF-PI1800 |
Stock Status | In Stock, Production Scale Up to Tons |
Molecular Formula | C9H27O3PSi3 |
Molecular Weight | 298.54 |
Boiling Point | 78.0~81.0℃/8 mmHg (lit.) |
Density | 0.893 g/mL at 25℃ (lit.) |
Brand | Ruifu Chemical |
Item | Specifications |
Appearance | Colorless to Light Yellow Liquid |
Purity / Analysis Method | >95.0% (GC) |
APHA | <50 |
Moisture | <200ppm (Karl Fischer) |
Refractive Index | n20/D 1.399~1.413 |
Proton NMR Spectrum | Conforms to Structure |
Test Standard | Enterprise Standard |
Usage | Lithium-ion Battery Additive |
Package: Fluorinated Bottle, 25kg/Drum, or according to customer's requirement
Storage Condition: Store in sealed containers at cool and dry place; Protect from light and moisture


Tris(trimethylsilyl) Phosphite (TTMSP) (CAS: 1795-31-9) can be used as electronic chemicals; can be used as lithium-ion battery additive to improve storage stability. It is mainly used as electrolyte additive for power lithium-ion battery. It significantly improves low temperature performance and normal temperature cycle performance. Ehance high temperature perfomance. Tris(trimethylsilyl) Phosphite was a reagent employed for the mild preparation of bis(TMS) phosphonates (Arbuzow reaction)
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