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Tris(trimethylsilyl)phosphate

Tris(trimethylsilyl)phosphate Basic information
Product Name:Tris(trimethylsilyl)phosphate
Synonyms:Phosphoric acid, TMS;Phosphoric acid, tristrimethylsilyl;Phosphoric acid, triTMS;Silanol, trimethyl-, phosphate (3:1);Silanol,trimethyl-,phosphate(3:1);trimethyl-silanophosphate(3:1);Tris-(trimethylsilyl)fosfat;PHOSPHORIC ACID TRIS(TRIMETHYLSILYL) ESTER
CAS:10497-05-9
MF:C9H27O4PSi3
MW:314.54
EINECS:234-028-1
Product Categories:Si (Classes of Silicon Compounds);Silicon Compounds (for Synthesis);Silyl Esters;Si-O Compounds;Synthetic Organic Chemistry
Mol File:10497-05-9.mol
Tris(trimethylsilyl)phosphate Structure
Tris(trimethylsilyl)phosphate Chemical Properties
Melting point 3-4 °C (lit.)
Boiling point 228-229 °C/720 mmHg (lit.)
density 0.945 g/mL at 25 °C (lit.)
vapor pressure 23.3hPa at 20℃
refractive index n20/D 1.409(lit.)
Fp 76 °F
storage temp. under inert gas (nitrogen or Argon) at 2-8°C
pka23-25(at 25℃)
form liquid
color Colorless to Light yellow to Light orange
Specific Gravity0.959
Water Solubility 935.5μg/L at 20℃
Hydrolytic Sensitivity8: reacts rapidly with moisture, water, protic solvents
BRN 1794624
LogP4.72 at 20℃
CAS DataBase Reference10497-05-9(CAS DataBase Reference)
EPA Substance Registry SystemSilanol, trimethyl-, phosphate (3:1) (10497-05-9)
Safety Information
Hazard Codes F,Xi
Risk Statements 11-36/37/38
Safety Statements 16-26-36
RIDADR UN 1993 3/PG 2
WGK Germany 2
RTECS TC9700000
F 10-21
TSCA Yes
HS Code 2931.90.9010
HazardClass 3.2
PackingGroup III
MSDS Information
ProviderLanguage
SigmaAldrich English
Tris(trimethylsilyl)phosphate Usage And Synthesis
Chemical PropertiesColorless liquid
UsesTris(trimethylsilyl) phosphite (TMSPi) is a film-forming additive for high voltage cathode material in lithium-ion batteries. Tris (trimethylsilyl) phosphate is cleaved by alkali-metal fluorides, nitrates, and acetates at give the trimethylsilyl esters of the corresponding acids.
DefinitionChEBI: Tris(trimethylsilyl) phosphate is an organosilicon compound that is phosphoric acid in which the three hydroxy groups are substituted by (trimethylsilyl)oxy groups. It is a phosphoric acid derivative and an organosilicon compound.
PreparationTris(trimethylsilyl)phosphine is prepared by treating trimethylsilyl chloride, white phosphorus, and sodium-potassium alloy:
1/4 P4 + 3 Me3SiCl + 3 K → P(SiMe3)3 + 3 KCl
General DescriptionTris(trimethylsilyl) phosphate has been investigated as a novel film-forming additive for LiNi0.5Co0.2Mn0.3O2 cycling at high cut-off potential in LiPF6-based electrolyte. Tris(trimethylsilyl) phosphate [Tris(trimethylsilyl) ester of phosphoric acid] undergoes dealkylsilylation reaction with alumazene to yield heteroadamantane molecule.
Flammability and ExplosibilityNotclassified
Tris(trimethylsilyl)phosphate Preparation Products And Raw materials
Phosphoric acid tris(2-chloro-1-methylethyl) ester Ammonium phosphate dibasic Potassium di-tert-butyl phosphate Calcium phosphate monobasic Tris(2-butoxyethyl) phosphate TRI-M-TOLYL PHOSPHATE Lithium bis(trimethylsilyl)amide Trimethyl phosphate Tri-o-cresyl Phosphate Tris(trimethylsilyl) borate TRIS(2,2,2-TRIFLUOROETHYL)PHOSPHATE Tris(2-chloropropyl) phosphate TRIS(TRIMETHYLSILYL)PHOSPHITE Triisobutyl phosphate MONO-(TRIMETHYLSILYL)PHOSPHITE Tris(trimethylsilyl)phosphate BIS(TRIMETHYLSILYL) PHOSPHITE BIS(TRIMETHYLSILYLOXY)-PHOSPHINE
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