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| CAS No.: | 10497-05-9 |
|---|---|
| Name: | TRIS(TRIMETHYLSILYL) PHOSPHATE |
| Article Data: | 40 |
| Molecular Structure: | |
|
|
|
| Formula: | C9H27 O4 P Si3 |
| Molecular Weight: | 314.541 |
| Synonyms: | Silanol,trimethyl-, phosphate (3:1) (8CI,9CI); Tris(trimethylsiloxy)phosphine oxide;Tris(trimethylsilyl) phosphate |
| EINECS: | 234-028-1 |
| Density: | 0.945 g/mL at 25 °C(lit.) |
| Melting Point: | 3-4 °C(lit.) |
| Boiling Point: | 228-229 °C720 mm Hg(lit.) |
| Flash Point: | 76 °F |
| Solubility: | 935.5μg/L at 20℃ |
| Hazard Symbols: |
 F Xi
|
| Risk Codes: | 11-36/37/38 |
| Safety: | Moderately toxic by ingestion. When heated to decomposition it emits toxic fumes of POx. See also ESTERS. |
| Transport Information: | UN 1993 3 |
| PSA: | 54.57000 |
| LogP: | 4.64900 |
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A
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Tris(trimethylsilyl) phosphate
B
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O,O,O-tris(trimethylsilyl) phosphorothioate
| Conditions | Yield |
|---|---|
| With phosphorus pentoxide at 170 - 180℃; for 10h; | A 85% B 98% |
| Conditions | Yield |
|---|---|
| In formamide for 1h; Inert atmosphere; Schlenk technique; | 98% |
| Conditions | Yield |
|---|---|
| Stage #1: Hexamethyldisiloxane With phosphoric acid at 160 - 170℃; under 4500.45 - 6000.6 Torr; for 5h; Autoclave; Reflux; Stage #2: N-trimethylsilyldihydropyrrole at 100℃; under 760.051 Torr; | 96.52% |
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chloro-trimethyl-silane
- 10497-05-9
Tris(trimethylsilyl) phosphate
| Conditions | Yield |
|---|---|
| With potassium dihydrogenphosphate In hexane Reflux; | 96% |
| With ammonium dihydrogen phosphate at 78℃; for 3h; Temperature; Reagent/catalyst; Time; | 89.6% |
| With phosphoric acid | |
| With phosphoric acid Schlenk technique; Inert atmosphere; | |
| With phosphoric acid Inert atmosphere; |
| Conditions | Yield |
|---|---|
| With saccharin In acetonitrile for 1h; Heating; | 93% |
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N-trimethylsilyl-pyrrolidin-2-one
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Tris(trimethylsilyl) phosphate
| Conditions | Yield |
|---|---|
| With lithium dihydrogenphosphate at 20℃; for 1h; | 86% |
- 53380-41-9
tetrakis(trimethylsiloxy)phosphonium iodide
A
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trimethylsilyl iodide
B
- 10497-05-9
Tris(trimethylsilyl) phosphate
| Conditions | Yield |
|---|---|
| In benzene Heating; during 5 h the solvent was distilled off, the temp. rose to 110 deg C; | A n/a B 85% |
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A
- 10497-05-9
Tris(trimethylsilyl) phosphate
B
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bis(trimethylsilyl) (1,1-dioxido-3Н-2,1-benzoxathiol-3-yl)phosphonate
| Conditions | Yield |
|---|---|
| at 90 - 110℃; under 1 Torr; | A n/a B 52% |
- 10416-59-8
N,O-bis-(trimethylsilyl)-acetamide
- 10497-05-9
Tris(trimethylsilyl) phosphate
| Conditions | Yield |
|---|---|
| With trichlorophosphate at 120℃; for 1h; | 26% |
- 1795-31-9
tris(trimethylsilyl) phosphite
- 10497-05-9
Tris(trimethylsilyl) phosphate
| Conditions | Yield |
|---|---|
| With trityl-glycidol at 130 - 150℃; | 24% |
| With styrene oxide at 130 - 150℃; |
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Chemistry
IUPAC Name: Tris(trimethylsilyl) phosphate
Synonyms: Phosphoric acid tris(trimethylsilyl) ester ; Timtec-bb sbb001292 ; Tris(trimethylsilyl) phosphate ; Ester ; Phosphoric acid, tms ; Phosphoric acid, tristrimethylsilyl ; Phosphoric acid, tritms ; Silanol, trimethyl-, phosphate (3:1)
Product Categories: Si (Classes of Silicon Compounds);Silicon Compounds (for Synthesis);Silyl Esters;Si-O Compounds;Synthetic Organic Chemistry
CAS NO: 10497-05-9
Molecular Formula of Phosphoric acid, tris(trimethylsilyl) ester (CAS NO.10497-05-9) : C9H27O4PSi3
Molecular Weight of Phosphoric acid, tris(trimethylsilyl) ester (CAS NO.10497-05-9) :314.54
Molecular Structure of Phosphoric acid, tris(trimethylsilyl) ester (CAS NO.10497-05-9) :
EINECS: 234-028-1
Mol File: 10497-05-9.mol
Index of Refraction: 1.414
Surface Tension: 20.7 dyne/cm
Density: 0.96 g/cm3
Flash Point: 110.8 °C
Enthalpy of Vaporization: 44.85 kJ/mol
Boiling Point: 230.8 °C at 760 mmHg
Vapour Pressure: 0.0977 mmHg at 25°C
Melting point: 3-4 °C(lit.)
Toxicity Data With Reference
| 1. | orl-rat LD50:3440 mg/kg | MarJV# Personal Communication from Josef V. Marhold, VUOS, 539-18, Pardubice, Czechoslovakia, to the Editor of RTECS, Cincinnati, OH, March 29, 1977 29MAR77 . |
Consensus Reports
Reported in EPA TSCA Inventory.
Safety Profile
Moderately toxic by ingestion. When heated to decomposition it emits toxic fumes of POx. See also ESTERS.
Hazard Codes 
F,
Xi
Risk Statements 11-36/37/38
R11:Highly flammable.
R36/37/38:Irritating to eyes, respiratory system and skin.
Safety Statements 16-26-36
S16:Keep away from sources of ignition.
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
S36:Wear suitable protective clothing.
RIDADR UN 1993 3/PG 2
WGK Germany 2
RTECS TC9700000
F 10-21
TSCA Yes
HazardClass 3.2
PackingGroup III