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| | Tris(trimethylsilyl)phosphate Basic information |
| | 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 | | pka | 23-25(at 25℃) | | form | liquid | | Specific Gravity | 0.959 | | color | Colorless to Light yellow to Light orange | | Water Solubility | 935.5μg/L at 20℃ | | Hydrolytic Sensitivity | 8: reacts rapidly with moisture, water, protic solvents | | BRN | 1794624 | | LogP | 4.72 at 20℃ | | CAS DataBase Reference | 10497-05-9(CAS DataBase Reference) | | EPA Substance Registry System | Silanol, trimethyl-, phosphate (3:1) (10497-05-9) |
| 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 |
| | Tris(trimethylsilyl)phosphate Usage And Synthesis |
| Chemical Properties | Colorless liquid | | Uses | Tris(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. | | Definition | ChEBI: 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. | | Preparation | Tris(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 Description | Tris(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. | | Reactivity Profile | Tris(trimethylsilyl)phosphine and its more reactive derivative lithium bis-(trimethylsilyl)phosphide·2tetrahydrofuran are very useful reagents for the preparation of compounds with a single or a multiple element phosphorus bond. They react readily with various element halides, with carboxylic acid chlorides, and with carboxylic esters, as well as with other organic electrophiles via a substitution of lithium and/or a cleavage of the weak polar Si-P bonds. | | Flammability and Explosibility | Not classified |
| | Tris(trimethylsilyl)phosphate Preparation Products And Raw materials |
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