Molekula
Sodium carbonate anhydrous 99%
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 1999 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
Sodium carbonate anhydrous 99% is a white, water-soluble inorganic salt widely used in glass manufacturing, water treatment, pH regulation, and detergent production. It also serves aluminum production, pulp and paper processing, and textile manufacturing, and is formulated into hard-surface disinfectant and sanitizer products. It acts as a strong alkaline agent, buffering agent, and deflocculant in industrial processes. CAS 497-19-8 | Molecular formula Na₂CO₃ | Molecular weight 105.99 g/mol | Stored at ambient conditions | Signal word: Warning (H319: causes serious eye irritation). Molekula supplies sodium carbonate anhydrous 99% from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Example image for illustration only. Other packaging and pack sizes are available.
Pricing & pack sizes
On backorder — expected to ship by 17 November 2026
These pack sizes aren't a limit. Molekula manufactures, sources and repacks to order — if you need 500 kg and only see 1 kg listed, . We quote from grams to multi-tonne.
Need a different size? Add the nearest pack and change the size in your basket — we price it at the same rate per unit.
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500 g — $74.10 per pack
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Tell us how much you need and when — drums, IBCs, sacks or a one-off bulk lot. We'll manufacture or source it and come back with a price.
Prices exclude VAT/sales tax and shipping.
Specifications
| Property | Value |
|---|---|
| Appearance | White crystalline powder |
| Bulk density | 450 - 680 kg/m3 |
| Sodium chloride | ≤0.30% |
| Sodium sulphate | ≤0.04% |
| Ferric Oxide | ≤0.003% |
| Moisture: Loss on Heating | ≤0.5% |
| Bicarbonate (NaHCO3) | ≤0.70% |
| Sodium carbonate (Na2CO3) | ≥99.0% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Flash Point | 0 °C |
| Acidity | Base |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Appearance | White hygroscopic powder |
| Odour | Odorless |
| Melting Point | 856 °C |
| Density | 2.54 g/cm³ |
| Water Solubility | Soluble in water |
| Solubility (other solvents) | Sparingly soluble in ethanol; insoluble in acetone |
| Refractive Index | 1.535 |
Source: PubChem CID 10340 (HSDB)
Identification
| Property | Value |
|---|---|
| SKU | 90038512 |
| CAS Number | 497-19-8 |
| IUPAC Name | disodium;carbonate |
| EC Number | 207-838-8 |
| Molecular Formula | Na2CO3 |
| Molecular Weight | 105.99 |
| Exact Mass | 105.9643 |
| SMILES | C(=O)([O-])[O-].[Na+].[Na+] |
| InChIKey | CDBYLPFSWZWCQE-UHFFFAOYSA-L |
| InChI | InChI=1S/CH2O3.2Na/c2-1(3)4;;/h(H2,2,3,4);;/q;2*+1/p-2 |
| PubChem CID | 10340 |
| REACH Code | Y113 |
| TSCA Listed | Yes |
| HTS Code | 2836.20.0000 |
| Tariff Code | 2836200000 |
Safety & GHS
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Health Hazard
GHS07
Hazard statements
- H319 Causes serious eye irritation
Precautionary statements
- P232 Protect from moisture
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
- P337+313 If eye irritation persists get medical advice/attention
Documents
Safety Data Sheets (SDS)
Available in English, German, Spanish, French, Italian, Portuguese, Arabic, Dutch.
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Synonyms
- Bisodium carbonate
- Calcined soda
- Carbonic acid disodium salt
- Carbonic acid sodium salt
- Carbonic acid sodium salt (1:2)
- Disodium carbonate
- Soda Ash
- SODIUM CARBONATE
- Solvay soda
- Washing soda
Frequently asked questions
What is sodium carbonate anhydrous 99% commonly used for?
Sodium carbonate anhydrous (99%) is widely used in glass manufacturing, water treatment, detergents, pH buffering, and as a food additive (E500). It also serves as a laboratory reagent and in chemical synthesis.
What is the molecular formula and molecular weight of sodium carbonate anhydrous?
The molecular formula is Na₂CO₃, and the molecular weight is 105.99 g/mol.
How should sodium carbonate anhydrous be stored?
Store in a tightly sealed container at ambient temperature, away from moisture and strong acids to prevent degradation or reaction.
What purity grades of sodium carbonate anhydrous does Molekula supply?
Molekula supplies this product at 99% purity (anhydrous). Higher or lower grades may be available upon request.
Can Molekula supply sodium carbonate anhydrous in bulk quantities?
Yes, Molekula can supply sodium carbonate anhydrous in bulk (e.g., drums, totes, or custom packaging) for industrial or large-scale applications. Contact us for pricing and logistics details.
What documentation comes with an order of sodium carbonate anhydrous?
Each order includes a Certificate of Analysis (CoA), Material Safety Data Sheet (MSDS), and a packing list. Additional documentation, such as a Certificate of Conformity (CoC), may be provided upon request.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.