TCS Industries Limited (China-sourced API supplier) supplies Anhydrous Sodium Carbonate CAS 497-19-8 for pharmaceutical B2B procurement — COA, MSDS, and technical documentation available on request.
> Overview
| Product Name | Anhydrous Sodium Carbonate |
|---|---|
| Structural Formula |  |
| CAS Number | 497-19-8 |
| Molecular Formula | CNa2O3 |
| Molecular Weight | 105.99 g/mol |
| InChIKey | CDBYLPFSWZWCQE-UHFFFAOYSA-L |
| SMILES | Available on request where applicable |
| Appearance | White, granular powder |
| Purity / Grade | By agreed specification and batch COA |
| Storage | Keep tightly closed in a cool, dry, well-ventilated place |
Anhydrous Sodium Carbonate (CAS 497-19-8) is the water-free form of sodium carbonate (Na₂CO₃), commonly known as soda ash. It is a strong alkaline salt used across glass manufacturing, detergent production, water treatment, food processing and pharmaceutical pH adjustment. The anhydrous form has a molecular weight of 105.99 g/mol and does not contain the water of crystallization present in the decahydrate (washing soda, CAS 6132-02-1) or monohydrate forms.
TCS Industries Limited, a Hong Kong-based trading and sourcing company, supplies Anhydrous Sodium Carbonate in industrial, food and pharmaceutical grades for global B2B procurement programs.
> Applications
pH adjustment and buffering in pharmaceutical formulations
Sodium carbonate is used as a pH adjuster and alkalizing agent in pharmaceutical preparations. It is listed in the FDA Inactive Ingredients Database for oral solutions, topical formulations and injectable preparations. In effervescent tablet formulations, sodium carbonate reacts with citric or tartaric acid to produce CO₂ for tablet disintegration. The anhydrous form is preferred over hydrated forms when moisture sensitivity is a concern.
Industrial and water treatment applications
Soda ash is a primary raw material for soda-lime glass production (approximately 50% of global consumption). In water treatment, it raises pH and alkalinity to reduce corrosion in distribution systems. In detergent manufacturing, it acts as a builder to soften water by precipitating calcium and magnesium ions. Steinhauser et al. (J Chem Eng Data, 2008, 53:1588–1593) characterized the solubility and crystallization behavior of sodium carbonate in industrial processing, confirming soda ash as the dominant feedstock for glass manufacturing worldwide.
> Sourcing & Supply
TCS Industries Limited supports development, qualification and commercial purchasing discussions for Anhydrous Sodium Carbonate with buyers in South America, Europe, the United Kingdom, Australia, New Zealand, Mexico and Canada.
- Evaluation and commercial quantities: 25 kg bags for qualification; pallet and bulk (FIBC) for production campaigns. Dense and light soda ash grades available.
- Pallet quantities and production campaigns: repeat supply is coordinated against packaging, lead time, annual demand and destination-market import requirements.
> Quality & Documentation
Key specification parameters depend on grade. Industrial/soda ash grade: assay (≥99.2% as Na₂CO₃), NaCl content, Na₂SO₄ content, iron, water-insoluble matter, and particle size (dense vs. light soda ash). Food grade (E500i): assay (≥99.0%), heavy metals (Pb ≤2 ppm, As ≤1 ppm), pH, loss on drying, per FCC or EU specifications. Pharmaceutical grade: compliant with Ph.Eur. (Natrii carbonas anhydricus) or USP-NF monograph. COA and MSDS are standard.
> Packaging
Anhydrous Sodium Carbonate is hygroscopic and should be stored sealed in dry conditions. Standard packaging includes 25 kg or 50 kg multiply paper bags with PE liner, palletized shrink-wrapped, or 1000 kg FIBC (jumbo bags) for bulk orders. Pharmaceutical-grade material is packed in double PE-lined containers. Labels and documents are checked before dispatch.
> Pricing & MOQ
Pricing is quoted by specification, packaging and destination. Common commercial discussions use 25 kg bag/drum formats, pallet quantities and production-campaign planning; smaller samples may be reviewed for qualified formulation teams.
> Regulatory & Compounding Context
Anhydrous Sodium Carbonate is approved as food additive E500(i) in the EU (Regulation (EC) 1333/2008) and is GRAS in the US (21 CFR 184.1742). It is monographed in Ph.Eur. (Natrii carbonas anhydricus) and USP-NF. Listed in the FDA Inactive Ingredients Database. REACH-registered in the EU. No special import permits required. Buyers should specify grade (industrial, food, pharma) and applicable standard at inquiry.
> Alias Index
- IUPAC: Disodium carbonate
- CAS Number: 497-19-8 (anhydrous); 6132-02-1 (decahydrate, washing soda)
- Formula: Na₂CO₃ (MW 105.99 g/mol)
- Common names: Soda ash, Washing soda (decahydrate), Sodium carbonate anhydrous, Calcined soda
- EU food additive: E500(i)
- Pharmacopoeial names: Natrii carbonas anhydricus (Ph.Eur.), Sodium Carbonate (USP-NF)
- InChIKey: CDBYLPFSWZWCQE-UHFFFAOYSA-L
- Commercial request terms: soda ash supplier, sodium carbonate anhydrous, E500, Na2CO3 bulk, TCS Industries Limited
> FAQ
What is the difference between dense and light soda ash?
Dense soda ash and light soda ash are the same compound (Na₂CO₃) but differ in particle size and bulk density. Dense is preferred for glass manufacturing and bulk handling. Light is used in detergent production and chemical processing. Specify the required form at inquiry.
What documents are available for Anhydrous Sodium Carbonate orders?
COA and MSDS are standard for commercial discussions. COO, packing list, invoice and other import-support documents can be arranged according to order scope.
Can TCS Industries Limited support Anhydrous Sodium Carbonate supply to South America?
Yes. We support B2B buyers in Argentina, Colombia, Chile, Peru, Ecuador, Uruguay, Bolivia, Brazil, Paraguay, Venezuela, Guyana and Suriname, subject to route and document review.
Do you support Europe, the United Kingdom, Australia, New Zealand, Mexico and Canada?
Yes. These destinations can be reviewed for project supply, import documents, packaging and logistics planning before quotation.
Is Sodium Carbonate approved for pharmaceutical use?
Yes. Anhydrous Sodium Carbonate is monographed in Ph.Eur. and USP-NF and listed in the FDA Inactive Ingredients Database. It is used as a pH adjuster, alkalizing agent and effervescent component in pharmaceutical formulations. Pharmaceutical-grade material must meet pharmacopoeial purity specifications.
What is the difference between Sodium Carbonate and Sodium Bicarbonate?
Sodium Carbonate (Na₂CO₃, CAS 497-19-8) is a stronger alkali (pH ~11.5 in 1% solution) used for industrial pH adjustment and glass production. Sodium Bicarbonate (NaHCO₃, CAS 144-55-8) is a milder alkali (pH ~8.3) used in food, antacids and effervescent formulations. They are different compounds. Specify which is required.
Can you arrange samples before commercial purchasing?
Samples or evaluation quantities may be reviewed for qualified buyers after target specification, application and destination-market requirements are clarified.
How is Anhydrous Sodium Carbonate packaged for export?
Packaging is confirmed by quantity and material properties. Typical options include foil bags, HDPE containers, fibre drums, 25 kg bags or palletized export packaging.
Can buyer-defined specifications be reviewed?
Yes. Send the specification, methods, impurity limits and required documents. TCS can review feasibility before confirming quotation and lead time.
What payment terms are normally used?
Standard payment is 100% T/T before dispatch unless a different arrangement has been approved for an established commercial account.
What lead time should buyers expect?
Lead time depends on stock, batch size, document scope and destination. Available stock can move faster; made-to-order or pallet programs require longer planning.
Is Sodium Carbonate the same as caustic soda?
No. Sodium Carbonate (Na₂CO₃, soda ash) is a mild alkali. Caustic soda is sodium hydroxide (NaOH, CAS 1310-73-2), a strong alkali classified as corrosive. They have different chemical properties, applications and handling requirements. Specify the correct compound name and CAS number at inquiry.
Last reviewed: June 2026
Evaluation and research orders (≤10 kg) are shipped with COA, MSDS, and certificate of origin. Bulk commercial orders (>10 kg) qualify for volume pricing with a full technical documentation package available on request.
> Request a Quote
If your team already has a target application, estimated quantity, destination market, or documentation requirements, send those details so the commercial response can be prepared more efficiently.