Sodium-potassium alloy
Sodium-potassium alloy (CAS: 11135-81-2) is a highly reactive alkali metal mixture, typically comprising 56% potassium and 44% sodium by weight. Supplied as a liquid, it is known for its potent reducing properties and its use as a highly effective drying agent, particularly for removing trace amounts of water from organic solvents. This alloy is essential in chemical synthesis and various material science applications requiring strong reducing capabilities.
- IUPAC
- Na2K-SG-I,Sodium-potassium alloy on silica gel (Na2K)
Drying Agent for Organic Solvents
Sodium-potassium alloy is an exceptionally efficient drying agent, capable of removing minute quantities of water from organic solvents and reaction mixtures. Its high reactivity ensures thorough dehydration, making it suitable for moisture-sensitive syntheses.
Reducing Agent in Organic Synthesis
As a powerful reducing agent, this alloy is employed in various organic transformations. It facilitates reactions requiring strong electron donation, contributing to the synthesis of complex molecules and intermediates.
Material Science Research
The unique properties of sodium-potassium alloy lend themselves to applications in materials science research, including the development of new materials and the study of high-energy systems.
Catalysis and Chemical Processes
It can serve as a component in catalytic systems or as a reagent in specialised chemical processes where its strong reducing potential is required.
| Form | liquid |
|---|---|
| Density | 0.87 g/mL at 25 °C |
| Vapour pressure | 0 mmHg (20 °C) |
| Autoignition temp | 248-257 °F |
| Composition | Potassium, 56 wt. %Sodium, 44 wt. % |
Hazard statements
- H260In contact with water releases flammable gases
- H314Causes severe skin burns and eye damage
Precautionary statements
- P223Do not allow contact with water
- P231Handle under inert gas
- P280Wear protective gloves, clothing and eye/face protection
- P305IF IN EYES
- P370In case of fire
- P422
| Protective equipment | Faceshields, full-face respirator (US), Gloves, Goggles, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Transport (UN / ADR) | UN 1422 4.3 / PGI |
| Water hazard class (WGK, DE) | 1 |
| Hazard codes (EU) | F,C |
| Risk statements (R) | 14/15-34 |
| Safety statements (S) | 26-36/37/39-43-45 |
| Supplemental hazards | Reacts violently with water. |
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 Sodium-potassium alloy used for?
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Sodium-potassium alloy is primarily used as a highly effective drying agent for organic solvents and as a powerful reducing agent in chemical synthesis and material science research.
What is the CAS number and formula for Sodium-potassium alloy?
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The CAS number for Sodium-potassium alloy is 11135-81-2. A specific molecular formula is not applicable as it is an alloy.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies sodium-potassium alloy with a composition of approximately 56% potassium and 44% sodium by weight. We do not represent this product as USP, BP, or EP grade.
How should Sodium-potassium alloy be handled safely?
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Sodium-potassium alloy is extremely reactive, especially with water (H260-H314). Handle with extreme caution in an inert atmosphere, using appropriate personal protective equipment including face shields, gloves, and respirators. Ensure water is strictly excluded from handling areas (P223, P231+P232).
How is Sodium-potassium alloy packed, shipped, and exported?
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Sodium-potassium alloy is shipped as a dangerous good under UN 1422, Hazard Class 4.3. It is packaged to maintain an inert atmosphere during transport and handled according to strict safety regulations for reactive materials.
How can I request a sample or quote for Sodium-potassium alloy?
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Please contact Tech Serve Solutions directly via our website or by phone to request a sample or a formal quotation for Sodium-potassium alloy.
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