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Fusion Mixture is a laboratory flux commonly formulated as an equimolar mixture of anhydrous sodium carbonate and potassium carbonate. This alkaline inorganic salt mixture is used in analytical chemistry to facilitate the decomposition and fusion of selected refractory materials, silicates, minerals, and other insoluble inorganic samples. During high-temperature fusion, the flux reacts with suitable sample constituents to produce a fused mass that can be processed for subsequent chemical analysis. Fusion Mixture is relevant to qualitative inorganic analysis, mineral investigation, sample preparation, and educational experiments involving chemical fusion techniques. Its suitability depends on the sample composition, analytical method, crucible material, and required experimental conditions. Lab Wale offers Fusion Mixture in a 1 kg pack for laboratory applications. Users should verify the formulation and reagent specifications for their intended procedure and follow appropriate high-temperature handling and chemical safety practices.
Product Specifications
| Specification | Details |
|---|---|
| Appearance | White crystalline powder |
| Assay | 99% |
| Chemical Name | Fusion Mixture (Sodium Carbonate and Potassium Carbonate Mixture) |
| Alternate Names | Fusion Flux, Sodium-Potassium Carbonate Flux, Carbonate Fusion Mixture |
| Molecular Formula | Na2CO3 + K2CO3 (mixture) |
| Empirical Formula | Not applicable to the mixture as a whole |
| CAS Number | Not applicable as a single CAS number for the mixture; component CAS numbers are 497-19-8 for sodium carbonate and 584-08-7 for potassium carbonate |
| Molecular Weight | Not applicable as a single molecular weight; sodium carbonate: 105.99 g/mol, potassium carbonate: 138.21 g/mol |
| Grade | LR Laboratory Reagent |
Key Features of Fusion Mixture
- Commonly formulated from sodium carbonate and potassium carbonate, two inorganic salts used in alkaline fusion procedures.
- Functions as a flux for suitable inorganic samples, facilitating their decomposition during high-temperature treatment.
- Provides a carbonate-based fusion medium for selected silicates, mineral samples, and refractory inorganic materials.
- Useful in analytical chemistry laboratories for preparing suitable fused samples for subsequent chemical examination.
- Relevant to supervised educational and research laboratory work involving inorganic reactions, sample preparation, and classical analytical techniques.
Laboratory Applications of Fusion Mixture
- Inorganic analytical chemistry for the fusion of suitable insoluble samples before subsequent dissolution and analysis.
- Mineralogical and geological investigations involving selected silicate rocks, ores, and refractory inorganic materials.
- Qualitative analysis experiments requiring alkaline fusion to convert suitable sample constituents into forms that can be examined using appropriate analytical procedures.
- University and research-centre sample preparation for selected elemental and inorganic analyses, subject to method validation and compatibility requirements.
- Educational demonstrations of flux chemistry and high-temperature sample decomposition in properly equipped, supervised laboratories.
Why Choose Lab Wale to Buy Fusion Mixture
Lab Wale provides a sourcing option for laboratory chemicals and scientific supplies used by educational institutions, universities, research centres, and analytical laboratories. When purchasing Fusion Mixture, review the product identity, stated assay, laboratory grade, and 1 kg pack size to determine whether it meets your experimental requirements. Confirm the formulation and compatibility with the intended fusion method before ordering. Appropriate product selection, relevant safety documentation, and established laboratory procedures help support responsible chemical purchasing and use.
Frequently Asked Questions About Fusion Mixture
What is Fusion Mixture used for in laboratories?
Fusion Mixture is used as a flux in selected inorganic analytical procedures to decompose suitable insoluble samples through high-temperature fusion. Applications include preparing certain mineral, silicate, and refractory materials for subsequent chemical analysis. The appropriate flux depends on the sample composition and analytical method.
What is the chemical formula of Fusion Mixture?
Fusion Mixture is commonly formulated from sodium carbonate (Na2CO3) and potassium carbonate (K2CO3). Because it is a mixture rather than a single chemical compound, it does not have one unique molecular or empirical formula. The precise component ratio should be confirmed from the product specification.
Does Fusion Mixture have a single CAS number or molecular weight?
A mixture of sodium carbonate and potassium carbonate does not have one unique molecular weight. The component CAS numbers are 497-19-8 for sodium carbonate and 584-08-7 for potassium carbonate. A single CAS number should not be assigned to the product without documentation establishing the identity of the specific formulation.
How does Fusion Mixture help in inorganic sample analysis?
During suitable high-temperature fusion procedures, the carbonate flux reacts with selected sample constituents and facilitates their conversion into a fused mass that can be processed for further analysis. Sample-to-flux ratio, temperature, crucible compatibility, and subsequent dissolution conditions must be selected according to the validated analytical method.
What precautions are required when handling Fusion Mixture?
Review the current Safety Data Sheet before use and wear suitable eye protection, gloves, and laboratory clothing. Avoid inhaling dust and prevent contact with the eyes and skin. High-temperature fusion requires appropriate heat-resistant equipment, compatible crucibles, suitable ventilation, and trained supervision. Follow institutional procedures for spills and waste disposal.
Storage Conditions for Fusion Mixture
Store Fusion Mixture in a tightly closed, compatible, clearly labelled container in a cool, dry, well-ventilated location. Protect the material from moisture because carbonate salts can absorb moisture from the environment. Keep it away from acids and incompatible chemicals, and follow the storage instructions provided in the applicable Safety Data Sheet.
Precautions for Handling Fusion Mixture
Consult the current Safety Data Sheet and institutional risk assessment before handling Fusion Mixture. Wear suitable gloves, safety glasses, and laboratory clothing, and minimize dust generation. Avoid contact with eyes and skin. High-temperature fusion can cause severe thermal burns and may produce splattering or hazardous reactions if unsuitable materials are used. Use compatible crucibles, appropriate ventilation, and suitable heat-resistant equipment. Allow fused materials to cool under controlled conditions before further processing, and follow approved spill response and waste disposal procedures.


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