Molekula
Sodium bisulphate
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 bisulfate (NaHSO₄) is an acidic sodium salt of sulfuric acid widely used in pH adjustment, water treatment, food preservation, and laboratory applications for its strong acidifying properties. It is a white, crystalline solid with high solubility in water, commonly employed in cleaning solutions, metal surface treatment, and as a food additive (E514) to control acidity. CAS 7681-38-1, molecular weight 120.06 g/mol, stable at ambient storage. Classified as a Danger substance (corrosive, causes serious eye damage, H318). Molekula supplies sodium bisulfate 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
Pack sizes & pricing
Pricing on request — packs available from research to bulk quantities.
Need a different quantity or pack?
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 to off-white grain crystal |
| Heavy metals | ≤0.02% |
| Identification | Conforms to reference |
| Assay | ≥98.0% |
| Iron (Fe) | ≤0.1% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Acid |
Identification
| Property | Value |
|---|---|
| SKU | 90033550 |
| CAS Number | 7681-38-1 |
| IUPAC Name | sodium hydrogen sulfate |
| EC Number | 231-665-7 |
| Molecular Formula | NaHSO4 |
| Molecular Weight | 120.06 |
| Exact Mass | 119.9493 |
| SMILES | OS(=O)(=O)[O-].[Na+] |
| InChIKey | WBHQBSYUUJJSRZ-UHFFFAOYSA-M |
| InChI | InChI=1S/Na.H2O4S/c;1-5(2,3)4/h;(H2,1,2,3,4)/q+1;/p-1 |
| PubChem CID | 516919 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 28331900 |
| Tariff Code | 2833190000 |
Safety & GHS
-
Corrosive
GHS05
Hazard statements
- H318 Causes serious eye damage
Precautionary statements
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P302+352 IF ON SKIN: Wash with soap and water
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
- P308+313 IF exposed or concerned: Get medical advice/attention
- P337+313 If eye irritation persists get medical advice/attention
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, Spanish.
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
- Bisulfate of soda
- Monosodium sulfate
- Niter cake
- Nitre cake
- Sodium acid sulfate
- SODIUM BISULFATE
- Sodium hydrogen sulfate
- Sodium hydrogensulphate
- Sodium hydrosulfate
- WC-Perfect
Frequently asked questions
What is sodium bisulfate commonly used for?
Sodium bisulfate is primarily used for pH adjustment in industrial processes, water treatment, food preservation (as an acidulant), and as a cleaning agent in laboratories and industrial settings.
What is the chemical formula and molecular weight of sodium bisulfate?
The chemical formula is NaHSO₄, and the molecular weight is 120.06 g/mol.
How should sodium bisulfate be stored?
Store sodium bisulfate in a cool, dry place at ambient temperature, ensuring the container is tightly sealed to prevent moisture absorption.
What grades of sodium bisulfate does Molekula supply?
Molekula supplies technical/industrial grade sodium bisulfate, suitable for most industrial, laboratory, and food-grade applications (where compliant with regulations).
Can Molekula supply sodium bisulfate in bulk quantities?
Yes, Molekula can supply sodium bisulfate in bulk, with packaging options including drums, bags, or custom solutions depending on your requirements.
What documentation comes with a sodium bisulfate order?
Each order includes a Certificate of Analysis (CoA), Material Safety Data Sheet (MSDS/SDS), and a Packing List for compliance and safety reference.
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.