Key Properties of Potassium Carbonate
| Product Name: | Potassium Carbonate |
| Synonyms: | Carbonic Acid, Dipotassium Salt |
| CAS No: | 584-08-7 |
| Chemical Formula: | K₂CO₃ |
| Grade: | BP / USP |
| Appearance: | White, crystalline powder or granules |
| Molar Mass: | 138.21 g/mol |
| Solubility: | Freely soluble in water, insoluble in alcohol |
| Melting Point: | 891°C (decomposes) |
Inquiry
WhatsappPotassium Carbonate Manufacturing process
Step 1: Raw Material Selection
- High-purity potassium hydroxide (KOH) and carbon dioxide (CO₂) are used.
- Raw materials undergo strict quality checks for purity.
Step 2: Chemical Reaction & Processing
- Potassium hydroxide reacts with carbon dioxide to form Potassium Carbonate solution.
- The solution is filtered and refined to remove impurities.
Step 3: Crystallization & Drying
- The solution is evaporated, crystallized, and dried to achieve the required purity.
Step 4: Quality Control & Testing
- The product is tested for assay, solubility, moisture content, and pH as per IP/BP/USP standards.
Step 5: Packaging & Storage
- Packed in HDPE bags or fiber drums to prevent contamination.
- Stored in a cool, dry place to maintain stability.
Potassium Carbonate Applications
Pharmaceutical Applications
Alkalising and pH Adjustment Agent
Suitable pharmaceutical grades of Potassium Carbonate may be used as an alkalising or pH-adjusting agent in selected pharmaceutical formulations and manufacturing processes where controlled alkalinity is required.
Pharmaceutical Processing
Potassium Carbonate may be used in suitable pharmaceutical processing applications where an alkaline potassium salt is required. Manufacturers should select the appropriate grade according to the process, formulation and finished-product specifications.
Chemical Synthesis of Pharmaceutical Ingredients
Potassium Carbonate is used as a base in selected chemical reactions involved in the synthesis and processing of pharmaceutical intermediates and other chemical compounds. Suitability depends on the specific manufacturing process and purity requirements.
Food Applications
Acidity Regulator
Food-grade Potassium Carbonate may be used as an acidity regulator and pH-control agent in suitable food-processing applications.
Food Processing Applications
Potassium Carbonate may be used in selected food formulations and processing operations where controlled alkalinity is required. The grade and usage level should comply with applicable food regulations.
Cocoa and Specialty Food Processing
Food-grade Potassium Carbonate is used in selected cocoa-processing applications to modify acidity and influence characteristics such as flavor and color. Its use depends on the specific manufacturing process and applicable food requirements.
Glass and Ceramics Applications
Specialty Glass Manufacturing
Potassium Carbonate is used as a raw material in the manufacture of selected specialty glass products. It provides potassium and can influence properties of the resulting glass composition.
Ceramics and Glazes
The ceramics industry may use Potassium Carbonate in selected ceramic bodies, frits and glaze formulations where potassium-containing raw materials are required.
Chemical and Industrial Applications
Alkaline Reagent and pH Control
Potassium Carbonate is widely used as an alkaline reagent in selected chemical processes where pH adjustment, neutralization or controlled alkalinity is required.
Chemical Synthesis
It serves as a base and potassium source in various chemical synthesis processes, including the preparation of selected potassium salts and specialty chemicals.
Process Chemical
Potassium Carbonate may be used in industrial processing applications where its alkalinity, water solubility and potassium content provide the required functional properties.
Detergent and Cleaning Applications
Alkalinity and pH Control
Potassium Carbonate may be incorporated into selected detergent and cleaning formulations as an alkalinity source and pH-adjusting component.
Specialty Cleaning Formulations
It may be used in suitable industrial and institutional cleaning formulations where an alkaline, water-soluble potassium salt is required.
Laboratory Applications
Laboratory Reagent
Potassium Carbonate is commonly used as a laboratory reagent and base in chemical synthesis, analytical procedures and research applications.
pH Adjustment and Solution Preparation
Laboratories may use Potassium Carbonate for pH adjustment and preparation of alkaline solutions where its chemical properties are appropriate for the experimental procedure.
Potassium Carbonate Specifications
| Sr. No. | Test | Specification |
|---|---|---|
| 1 | Description | White, crystalline powder or granules |
| 2 | Assay (Purity) | Not less than 99.0% |
| 3 | Loss on Drying | Not more than 1.0% |
| 4 | pH (5% solution) | 10.0 – 11.5 |
| 5 | Solubility | Freely soluble in water |
| 6 | Chloride (Cl⁻) | Not more than 100 ppm |
| 7 | Sulphate (SO₄²⁻) | Not more than 200 ppm |
| 8 | Heavy Metals | Not more than 10 ppm |
| 9 | Iron (Fe) | Not more than 5 ppm |
| 10 | Lead (Pb) | Not more than 3 ppm |
| 11 | Arsenic (As) | Not more than 2 ppm |
| 12 | Residue on Ignition | Not more than 0.05% |
Potassium Carbonate BP Specification
Download Potassium Carbonate BP Specification
| Sr. No. | Test | Specification |
|---|---|---|
| 1 | Description | White or almost white granular powder; hygroscopic. |
| 2 | Solubility | Freely soluble in water; practically insoluble in ethanol (96 per cent). |
| 3 | Identification by Alkalinity | The solution is strongly alkaline. |
| 4 | Identification by Carbonate | It gives reaction of Carbonate. |
| 5 | Identification by Potassium | It gives reaction of Potassium. |
| 6 | Appearance of Solution | Not more intensely coloured than reference solution |
| 7 | Chlorides | Not more than 100 ppm |
| 8 | Sulphates | Not more than 100 ppm |
| 9 | Calcium | Not more than 100 ppm |
| 10 | Iron | Not more than 10 ppm |
| 11 | Loss on Drying | Not more than 5.0% |
| 12 | Assay (On dried substance) | Not less than 99.00% and not more than 101.00% |
Potassium Carbonate USP Specification
Download Potassium Carbonate USP Specification
| Sr. No. | Test | Specification |
|---|---|---|
| 1 | Description | White or almost white granular powder; hygroscopic. |
| 2 | Solubility | Freely soluble in water; practically insoluble in ethanol (96 per cent). |
| 3 | Identification by Carbonate | It gives reaction of Carbonate. |
| 4 | Identification by Potassium | It gives reaction of Potassium. |
| 5 | Insoluble Substances | The solution is complete, clear and colourless |
| 6 | Loss on Drying | Not more than 0.5% |
| 7 | Assay (On dried substance) | Not less than 99.50% and not more than 100.50% |
Note: Additional test to be carried out as per customer requirements.
Potassium Carbonate Packing and Storage condition
Packing:
- Packed in 25 kg / 50 kg HDPE bags with inner LDPE liner for moisture protection.
- Available in fiber drums or plastic drums for high-purity grades.
- Bulk packaging in jumbo bags (500 kg – 1000 kg) available upon request.
- Custom packaging options as per client requirements.
Storage Conditions:
- Store in a cool, dry, and well-ventilated area away from direct sunlight.
Why Choose Chemignition for
Potassium Carbonate Supply?
Quality Assurance
Grade Compliance
Potassium Carbonate is manufactured in adherence to stringent global pharmaceutical standards.
In-House Quality Control
Each batch undergoes rigorous testing for purity, stability, and efficacy.
Regulatory Approvals
Certified for export and compliant with international regulatory requirements.
Large-Scale Manufacturing and Export
Grade Compliance
Potassium Carbonate is manufactured in adherence to stringent global pharmaceutical standards.
In-House Quality Control
Each batch undergoes rigorous testing for purity, stability, and efficacy.
Regulatory Approvals
Certified for export and compliant with international regulatory requirements.
