Molekula
Mercury(II) sulfate 20% w/v sulfuric acid solution
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
Mercury(II) sulfate in a 20% w/v sulfuric acid solution is a highly toxic reagent used in analytical chemistry and specialized industrial processes. It contains mercury(II) sulfate (HgSO4) with a molecular weight of 296.65 g/mol and is identified by CAS number 7783-35-9. Documented applications include masking chloride ions in chemical oxygen demand (COD) testing of wastewater, catalysing the hydration of acetylene to acetaldehyde, and serving as an electrolyte in primary batteries. Stored at ambient temperatures, it carries a Danger signal word due to its toxicity. Molekula supplies Mercury(II) sulfate 20% w/v sulfuric acid solution 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.
-
100 g — $76.20 per pack
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 | Clear colourless liquid |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Transport Class | 8(6.1) |
| Packing Group | II |
| Acidity | Acid |
Identification
| Property | Value |
|---|---|
| SKU | 61441891 |
| CAS Number | 7783-35-9 |
| IUPAC Name | mercury(2+) sulfate |
| EC Number | 231-992-5 |
| Molecular Formula | HgSO4 |
| Molecular Weight | 296.65 |
| Exact Mass | 297.9224 |
| SMILES | [O-]S(=O)(=O)[O-].[Hg+2] |
| InChIKey | DOBUSJIVSSJEDA-UHFFFAOYSA-L |
| InChI | InChI=1S/Hg.H2O4S/c;1-5(2,3)4/h;(H2,1,2,3,4)/q+2;/p-2 |
| PubChem CID | 24544 |
| UN Number | UN2922 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 38221900 |
| Tariff Code | 2852100000 |
Safety & GHS
-
Corrosive
GHS05
-
Toxic
GHS06
-
Serious Health Hazard
GHS08
-
Hazardous to the Environment
GHS09
Hazard statements
- H290 May be corrosive to metals
- H301 Toxic if swallowed
- H314 (sub cat. 1B) Causes severe skin burns and eye damage
- H330 Fatal if inhaled
- H373 May cause damage to organs through prolonged or repeated exposure
- H410 Very toxic to aquatic life with long lasting effects
Precautionary statements
- P260 Do not breathe dust/fume/gas/mist/vapours/spray
- P273 Avoid release to the environment
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P301+310 IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician
- P303+361 IF ON SKIN (or hair): Remove immediately all contaminated clothing. Rinse with water/shower
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
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
- MERCURIC SULFATE
- Mercuric sulphate
- Mercury bisulfate
- Mercury disulfate
- Mercury persulfate
- mercury sulfate
- Mercury sulfate (HgSO4)
- Mercury(II) sulfate (1:1)
- Mercury(II) sulphate
- Sulfate mercurique
Frequently asked questions
What is Mercury(II) sulfate 20% w/v sulfuric acid solution used for?
It is primarily used as a reagent in analytical chemistry and organic synthesis, particularly for masking chloride interference in chemical oxygen demand (COD) determination and as a catalyst in certain reactions, such as the hydration of alkynes to ketones and the alpha-sulfonation of anthraquinone.
What is the chemical formula and molecular weight of Mercury(II) sulfate?
The formula is HgSO4 with a molecular weight of 296.65 g/mol.
How should Mercury(II) sulfate 20% w/v sulfuric acid solution be stored?
It should be stored at ambient temperature, away from light and incompatible materials, and kept in a tightly closed container.
What grade of Mercury(II) sulfate is available from Molekula?
Molekula supplies Mercury(II) sulfate as a reagent grade product, suitable for laboratory use.
Can Molekula supply Mercury(II) sulfate in bulk quantities?
Yes, Molekula can supply Mercury(II) sulfate in bulk quantities—please contact our sales team for volume pricing and availability.
What documentation comes with an order of Mercury(II) sulfate?
Each order includes a Certificate of Analysis (CoA) and Safety Data Sheet (SDS), compliant with GHS standards.
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.