Tris(trimethylsilyl) Phosphite (TTMSP) CAS 1795-31-9 Purity >95.0% (GC) Lithium-ion Battery Additive

Short Description:

Name: Tris(trimethylsilyl) Phosphite (TTMSP) 

CAS: 1795-31-9

Purity: >95.0% (GC)  

Appearance: Colorless to Light Yellow Liquid

Lithium-ion Battery Additive, High Quality


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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:

Chemical Properties:

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 & Storage:

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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