Molekula
Sodium hydrogen sulfate, fused
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 hydrogen sulfate, fused is an acidic sodium salt primarily used in chemical synthesis, pH adjustment, and as a catalyst in organic reactions. Its industrial applications include pickling and cleaning metals, carbonizing wool in textile processing, bleaching leather, and manufacturing magnesia cements. It appears as a white, hygroscopic solid with strong acidic properties. CAS number 7681-38-1, molecular formula NaHSO4, molecular weight 120.06 g/mol. Store at ambient conditions. Signal word: Danger. Molekula supplies sodium hydrogen sulfate, fused 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 — £49.00 per pack ex VAT · £58.80 inc. VAT
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 powder or granules |
| Assay | >98% |
| Moisture | <0.5% |
| Water insoluble matter | <0.05% |
| Sodium sulphate | <1.8% |
| Iron (Fe) | <0.002% |
| Lead (Pb) | <0.001% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Acid |
Identification
| Property | Value |
|---|---|
| SKU | 28194523 |
| 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
No alternate names recorded for this product.
Frequently asked questions
What is fused sodium hydrogen sulfate (NaHSO₄) commonly used for?
Fused sodium hydrogen sulfate is primarily used as a drying agent, acid catalyst in organic synthesis, and as an acidic flux for decomposing samples in chemical analysis.
What is the molecular formula and molecular weight of sodium hydrogen sulfate?
The molecular formula is NaHSO₄, and the molecular weight is 120.06 g/mol.
How should sodium hydrogen sulfate (fused) be stored?
Store in a tightly sealed container at ambient temperature, away from moisture and incompatible substances.
What grades of sodium hydrogen sulfate (fused) does Molekula supply?
Molekula supplies technical/industrial grade sodium hydrogen sulfate (fused) for research, manufacturing, and bulk applications.
Can Molekula supply sodium hydrogen sulfate in bulk quantities?
Yes, Molekula can supply sodium hydrogen sulfate in bulk quantities (drums, totes, or custom packaging) for industrial and large-scale applications.
What documentation comes with an order of sodium hydrogen sulfate?
Each order includes a Certificate of Analysis (CoA), Material Safety Data Sheet (MSDS/SDS), and batch-specific documentation for traceability.
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.