Potassium trimethylsilanolate
Potassium trimethylsilanolate (CAS 10519-96-7), with the linear formula (CH3)3SiOK and a molecular weight of 128.29 g/mol, is a potent organic base. It functions as a reactive intermediate and catalyst in various chemical synthesis processes. This compound is primarily utilised in organic chemistry for deprotonation and as a reagent in the formation of silicon-containing compounds.
- IUPAC
- Trimethylsilanol potassium salt
- Synonyms
- Trimethylsilanol potassium salt

Organic Synthesis Reagent
Potassium trimethylsilanolate serves as a strong base in organic synthesis, facilitating reactions such as deprotonation and nucleophilic substitution. Its utility extends to the introduction of the trimethylsilyl group into various organic molecules.
Catalysis
This compound can act as a catalyst in certain polymerisation reactions and other organic transformations. Its strong basicity allows it to promote reactions that require a highly nucleophilic or basic environment.
Intermediate for Organosilicon Compounds
It is employed in the synthesis of more complex organosilicon compounds. These can find applications in materials science, pharmaceuticals, and specialty chemicals.
| Molecular weight | 128.29 |
|---|---|
| Linear formula | (CH3)3SiOK |
| Assay | 90% |
| Melting point | 135-138 °C(lit.) |

Hazard statements
- H314Causes severe skin burns and eye damage
Precautionary statements
- P280Wear protective gloves, clothing and eye/face protection
- P305IF IN EYES
- P310Immediately call a POISON CENTER or doctor
| Protective equipment | Eyeshields, Faceshields, full-face particle respirator type N100 (US), Gloves, respirator cartridge type N100 (US), type P1 (EN143) respirator filter, type P3 (EN 143) respirator cartridges |
|---|---|
| Transport (UN / ADR) | UN 3263 8 / PGII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | C |
| Risk statements (R) | 34 |
| Safety statements (S) | 26-36/37/39-45 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is Potassium trimethylsilanolate used for?
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Potassium trimethylsilanolate (CAS 10519-96-7) is primarily used as a strong organic base in chemical synthesis, for deprotonation reactions, and as a reagent for introducing the trimethylsilyl group. It also finds application as a catalyst in certain organic transformations and in the synthesis of organosilicon compounds.
What is the CAS number and formula for Potassium trimethylsilanolate?
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The CAS number for Potassium trimethylsilanolate is 10519-96-7, and its linear formula is (CH3)3SiOK.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Potassium trimethylsilanolate with an assay of 90%. This product is typically considered for research and technical applications. TSS does not represent this product as USP, BP, EP, or any other pharmacopoeia grade.
How should Potassium trimethylsilanolate be handled safely?
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Potassium trimethylsilanolate is a corrosive substance (GHS05, Danger, H314). Handle with extreme care, using appropriate personal protective equipment including eyeshields, face shields, and chemically resistant gloves. Ensure adequate ventilation or use a respirator. In case of contact, rinse immediately with plenty of water. Always consult the Safety Data Sheet (SDS) before use.
How is Potassium trimethylsilanolate packed, shipped, and exported?
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Potassium trimethylsilanolate is packed according to UN 3263, Class 8, Packing Group II regulations for hazardous materials. Tech Serve Solutions, as a specialist global supplier, ensures compliant packaging and handles international export procedures for this chemical.
How can I request a sample or a quote for Potassium trimethylsilanolate?
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To request a sample or a quote for Potassium trimethylsilanolate, please visit the product page on the Tech Serve Solutions website and utilise the designated 'Request a Quote' or 'Sample Request' functions, or contact our sales team directly.
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