Molekula
Sodium carbonate anhydrous, 99.9%
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 2000 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
Sodium carbonate anhydrous, 99.9% purity, is a versatile white crystalline solid used primarily in glass manufacturing, water treatment, detergents, and pH buffering. It acts as a strong alkaline agent, flux, and electrolyte in industrial processes. This high-purity grade meets stringent quality requirements for applications demanding consistency and performance. CAS 497-19-8, molecular formula Na₂CO₃, molecular weight 105.99 g/mol. Store at ambient conditions. Signal word: Warning (irritant, avoid inhalation). Molekula supplies sodium carbonate anhydrous 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
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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1 kg — £51.20 per pack ex VAT · £61.44 inc. VAT
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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.
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Specifications
| Property | Value |
|---|---|
| Appearance | White powder |
| Density | 2,533 kg/dm3 |
| Melting Point | 851 Deg C |
| pH | 11.26 |
| Loss on Drying | <0.5% |
| Solubility | 214 in water @ 20 Deg C in g/1000g |
| NaCl | <0.2% |
| Fe2O3 | <20ppm |
| Na2CO3 | >99% |
| Na2SO4 | <0.03% |
| Calcium Oxide (CaO) | <100ppm |
| Magnesium Oxide (MgO) | <50ppm |
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 | 90022976 |
| 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 primarily used for?
Sodium carbonate anhydrous (Na₂CO₃) is widely used in glass manufacturing, as a pH regulator in water treatment, and in detergents, pulp/paper production, and food processing (e.g., baking soda precursor).
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.
What safety classification does sodium carbonate anhydrous have?
The signal word for sodium carbonate anhydrous is Warning, indicating it poses moderate hazards (e.g., eye/skin irritation or dust inhalation).
How should sodium carbonate anhydrous be stored?
Store in a cool, dry place at ambient temperature, away from moisture and incompatible substances (e.g., acids). Use airtight containers.
Does Molekula supply sodium carbonate anhydrous in bulk quantities?
Yes, Molekula can supply sodium carbonate anhydrous in bulk (e.g., drums, totes, or custom packaging). Please contact us for specific volume requirements.
What documentation is provided with a sodium carbonate anhydrous order?
Each order includes a Certificate of Analysis (CoA), Safety Data Sheet (SDS), and batch-specific documentation confirming 99.9% purity.
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.