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Sigma-Aldrich™ Sodium Carbonate, Powder, ≥99.5%, ACS Reagent
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Specifications:
| Application | Analytical Chemistry | ||
| Storage Temperature | Ambient | ||
| Product Type | Laboratory Chemical | Forms | Powder |
| Product Brand | Sigma-Aldrich | ||
| Product Grade | Analytical grade | Formula | Na₂CO₃ |
Sigma-Aldrich™ Sodium Carbonate, ≥99.5%, ACS Reagent is a high-purity inorganic chemical supplied as a powder for analytical, research, and industrial laboratory applications. Also known as soda ash or calcined soda, sodium carbonate is widely used as a base, buffer component, pH stabilising agent, and reagent in chemical synthesis.
With an assay of ≥99.5% and ACS reagent grade quality, this product is suitable for demanding laboratory workflows including analytical chemistry, environmental testing, nanoparticle synthesis, organic synthesis, and general chemical preparation. It is also suitable for selected EPA and Standard Methods applications.
Key Features
- High-purity sodium carbonate powder
- ACS reagent grade
- Assay: ≥99.5%
- Useful as a base, buffer component, and pH stabiliser
- Suitable for chemical synthesis and analytical workflows
- Applicable in environmental testing methods
- Low trace impurity specification
- Available in multiple pack sizes from 500 g to 12 kg
- Quality Level 200
Applications
- Buffer preparation and pH adjustment
- Analytical chemistry workflows
- Environmental and water testing
- Organic synthesis reactions
- Aldol condensation reactions
- Suzuki coupling reactions
- Iron oxide nanoparticle synthesis
- Detergent formulation research
- Flue gas desulfurisation studies
- Paper and pulp process research
- Removal of peripheral membrane proteins
Method Suitability
| Method / Standard | Suitability |
|---|---|
| EPA 300 | Suitable |
| SM 2310 | Suitable |
| SM 2320 | Suitable |
| SM 4500-NH₃ | Suitable |
Product Specifications
| Parameter | Specification |
|---|---|
| Brand | Sigma-Aldrich™ |
| Product Name | Sodium carbonate |
| Synonyms | Calcined soda; soda ash; carbonic acid disodium salt |
| Grade | ACS reagent |
| Quality Level | 200 |
| Form | Powder |
| Assay | ≥99.5% |
| Linear Formula | Na₂CO₃ |
| CAS Number | 497-19-8 |
| Molecular Weight | 105.99 g/mol |
| EC Number | 207-838-8 |
| MDL Number | MFCD00003494 |
| PubChem Substance ID | 24853390 |
| Beilstein / REAXYS Number | 4154566 |
| UNSPSC Code | 12352302 |
| NACRES | NA.21 |
| eCl@ss | 38020205 |
| pH | 12 at 25°C, 106 g/L |
| Melting Point | 851°C |
| Loss on Heating | ≤1.0% |
Impurity Specifications
| Impurity / Trace Component | Limit |
|---|---|
| Silica | ≤0.005% |
| Insolubles | ≤0.01% |
| Chloride | ≤0.001% |
| Phosphate | ≤0.001% |
| Sulfur compounds as SO₄²⁻ | ≤0.003% |
| Calcium | ≤0.03% |
| Iron | ≤5 ppm |
| Potassium | ≤0.005% |
| Magnesium | ≤0.005% |
| Heavy metals by ICP-OES | ≤5 ppm |
Ordering Information
| Pack Size | SKU |
|---|---|
| 500 g | 223530-500G |
| 1 kg | 223530-1KG |
| 2.5 kg | 223530-2.5KG |
| 12 kg | 223530-12KG |
Sigma-Aldrich™ Sodium Carbonate, Powder, ≥99.5%, ACS Reagent is a reliable high-purity laboratory reagent for analytical testing, pH control, buffer preparation, and chemical synthesis. Its ACS-grade specification, low impurity profile, and wide pack-size availability make it suitable for research, quality control, environmental analysis, and routine laboratory chemical preparation.
- Pack Size: 1kg 500g 2.5kg 12kg