Potassium trimethylsilanolate
- CAS No.
- 10519-96-7
- Chemical Name:
- Potassium trimethylsilanolate
- Synonyms
- TMSOK;Potassium methyl silicate;Trimethyl(potassiooxy)silane;Trimethylsiloxypotassium;Potassium Trimethylsiloxide;Potassium trimethylsilanoate;Potassium Trimethyl Silonate;DK457;DKFELEX0102;Potassium trimethyL
- CBNumber:
- CB6769011
- Molecular Formula:
- C3H9KOSi
- Molecular Weight:
- 128.29
- MDL Number:
- MFCD00013421
- MOL File:
- 10519-96-7.mol
- MSDS File:
- SDS
- TDS File:
- TDS
| Product description | Number | Pack Size | Price |
| Potassium trimethylsilanolate 90%, technical grade | 324868 | 25g | $217 |
| Potassium trimethylsilanolate 90%, technical grade | 324868 | 1kg | $3590 |
| Potassium Trimethylsilanolate | TRC-P698580-5G | 5g | $154 |
| Potassium Trimethylsilanolate | TRC-P698580-25G | 25g | $212 |
| Potassium Trimethylsilanolate | TRC-P698580-100G | 100g | $347 |
| More product size | |||
| Melting point | 135-138 °C (lit.) |
|---|---|
| Density | 0.91 |
| Flash point | -14°C (7°F) |
| storage temp. | Inert atmosphere,Room Temperature |
| solubility | DMSO (Springly), Methanol (Slightly) |
| form | powder |
| color | White |
| Specific Gravity | 0.91 |
| Hydrolytic Sensitivity | 7: reacts slowly with moisture/water |
| BRN | 3560282 |
| InChI | InChI=1S/C3H9OSi.K/c1-5(2,3)4;/h1-3H3;/q-1;+1 |
| InChIKey | LBKJNHPKYFYCLL-UHFFFAOYSA-N |
| SMILES | [Si]([O-])(C)(C)C.[K+] |
| EPA Substance Registry System | Silanol, trimethyl-, potassium salt (10519-96-7) |
| UNSPSC Code | 12352302 |
| NACRES | NA.22 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |  GHS05 |
|---|---|
| Signal word | Danger |
| Hazard statements | H314 |
| Precautionary statements | P303+P361+P353-P305+P351+P338 |
| PPE | Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges |
| Hazard Codes | C |
| Risk Statements | 34 |
| Safety Statements | 26-36/37/39-45 |
| RIDADR | UN 3263 8/PG 2 |
| WGK Germany | 3 |
| F | 3-10-21 |
| TSCA | TSCA listed |
| HazardClass | 8 |
| PackingGroup | III |
| HS Code | 29319090 |
| Storage Class | 8A - Combustible corrosive hazardous materials |
| Hazard Classifications | Skin Corr. 1B |
| Limited Quantities | 1 Kg (2.2 lbs) (solid) |
| Excepted Quantities | Max Inner Pack (30g or 30ml) and Max Outer Pack (500g or 500ml) |
Potassium trimethylsilanolate price More Price(50)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | 324868 | Potassium trimethylsilanolate 90%, technical grade | 10519-96-7 | 25g | $217 | 2026-04-30 | Buy |
| Sigma-Aldrich | 324868 | Potassium trimethylsilanolate 90%, technical grade | 10519-96-7 | 1kg | $3590 | 2026-04-30 | Buy |
| TRC | TRC-P698580-5G | Potassium Trimethylsilanolate | 10519-96-7 | 5g | $154 | 2026-06-03 | Buy |
| TRC | TRC-P698580-25G | Potassium Trimethylsilanolate | 10519-96-7 | 25g | $212 | 2026-06-03 | Buy |
| TRC | TRC-P698580-100G | Potassium Trimethylsilanolate | 10519-96-7 | 100g | $347 | 2026-06-03 | Buy |
Potassium trimethylsilanolate Chemical Properties,Uses,Production
Chemical Properties
Potassium trimethylsilanolate is a white solid with slight odor, decomposes above 134 °C.
Uses
Potassium trimethylsilanolate can be used as a reagent in the:
- Hydrolysis of nitriles to primary amides.
- Conversion of esters to carboxylic acids, and dialkyl phosphonates to their monoalkyl phosphonates.
- Synthesis of E-alkenes, and nitrocefin.
Production Methods
109 kg of hexamethyldichlorosilane was put into a stirring kettle, and nitrogen was introduced at a flow rate of 1 L/min for 0.5 h while stirring. 56 kg of potassium hydroxide was added while stirring. After returning water at 100° C. for 10 h, the material was discharged into a centrifugal spray drying oven and centrifuged and spray-dried at 3000 rpm and 100° C. for 5 h to obtain white crystalline potassium trimethylsilanol with a purity of 99.99%.
Solubility in organics
Potassium trimethylsilanolate is solubility in tetrahydrofuran, diethyl ether, toluene, dichloromethane, alcohols, and most other organic solvents.
Purification Methods
Recrystallise it from H2O and dry it at 100o/1-2mm. [Hyde et al. J Am Chem Soc 75 5615 1953, IR: Tatlock & Rochow J Org Chem 17 1555 1952, Beilstein 4 IV 3992.]
References
[1] C. A., 1949, p. 7500
[2] Journal of the American Chemical Society,
[3] Journal of the American Chemical Society, 1953, vol. 75, p. 5615 - 5618
[4] , Gmelin Handbook: Si: MVol.C, 84, page 231 - 233,
[5] Patent: US2472799, 1946,
Potassium trimethylsilanolate Preparation Products And Raw materials
Raw materials
Preparation Products
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Shanghai Worldyang Chemical Co.,Ltd. | +86-021-56795779 +8613651600618 | sales@worldyachem.com | China | 967 | 58 |
| Shanghai Zhuangming Biopharma Co., Ltd. | inquiry@zmsilane.com | China | 725 | 58 | |
| Hebei Yanxi Chemical Co., Ltd. | +8618531123677 | faithe@yan-xi.com | China | 5853 | 58 |
| Hebei Chuanghai Biotechnology Co., Ltd | +8615531151365 | mina@chuanghaibio.com | China | 18126 | 58 |
| Hebei Kangcang new material Technology Co., LTD | +8615713292910 | Nancy@kangcang.com.cn | China | 341 | 58 |
| Shanghai Daken Advanced Materials Co.,Ltd | +86-2158073036 | info@dakenam.com | China | 13901 | 58 |
| Henan Tianfu Chemical Co.,Ltd. | +86-0371-55170693 +86-19937530512 | info@tianfuchem.com | China | 21587 | 55 |
| Nanjing ChemLin Chemical Industry Co., Ltd. | 025-83697070 | product@chemlin.com.cn | CHINA | 3009 | 60 |
| ATK CHEMICAL COMPANY LIMITED | +undefined-21-51877795 | ivan@atkchemical.com | China | 33024 | 60 |
| career henan chemical co | +86-0371-86658258 +8613203830695 | sales@coreychem.com | China | 29815 | 58 |
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View Lastest Price from Potassium trimethylsilanolate manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2026-05-16 | Potassium trimethylsilanolate
10519-96-7
|
$31.00-81.00 | ≥98% | 10g | TargetMol Chemicals Inc. | ||
 |
2025-06-27 | Potassium trimethylsilanolate
10519-96-7
|
1KG | 99% | 500000kg | Hebei Chuanghai Biotechnology Co., Ltd | ||
 |
2025-06-20 | Potassium trimethylsilanolate
10519-96-7
|
$1.00-20.00 | 1kg | 0.99 | 30 tons | Hebei Yanxi Chemical Co., Ltd. |
-
- Potassium trimethylsilanolate
10519-96-7
- $31.00-81.00
- ≥98%
- TargetMol Chemicals Inc.
-
- Potassium trimethylsilanolate
10519-96-7
- 99%
- Hebei Chuanghai Biotechnology Co., Ltd
-
- Potassium trimethylsilanolate
10519-96-7
- $1.00-20.00
- 0.99
- Hebei Yanxi Chemical Co., Ltd.
