Molekula
Chromium(III) sulfate hydrate
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
Chromium(III) sulfate hydrate is an inorganic salt containing chromium in the +3 oxidation state, widely used in tanning leather, textile dyeing, and as a catalyst in chemical synthesis. It appears as a purple or violet crystalline solid, often hydrated with varying water content. This chemical has a CAS number of 15244-38-9, with the molecular formula Cr₂(SO₄)₃·xH₂O and a molecular weight of 392.18 g/mol. It is stored at ambient conditions but requires careful handling due to its **Danger** classification. Molekula supplies Chromium(III) sulfate hydrate 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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100 g — £97.40 per pack ex VAT · £116.88 inc. VAT
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Specifications
| Property | Value |
|---|---|
| Appearance | Green powder |
| Melting Point | 100.0 °C |
| Identification | Conforms to reference |
| pH | 3.0 - 4.0 |
| Water insoluble matter | ≤0.1% |
| Iron (Fe) | ≤0.1% |
| Chromium (Cr) | 25.5% - 26.0% |
| Chromium purity | ≥99.0% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Transport Class | 8 |
| Packing Group | II |
| Acidity | Acid |
Identification
| Property | Value |
|---|---|
| SKU | 55308559 |
| CAS Number | 15244-38-9 |
| IUPAC Name | bis(chromium(3+));trisulfate;hydrate |
| Molecular Formula | Cr2(SO4)3xH2O |
| Molecular Weight | 392.18 |
| Exact Mass | 409.7468 |
| SMILES | O.[O-]S(=O)(=O)[O-].[O-]S(=O)(=O)[O-].[O-]S(=O)(=O)[O-].[Cr+3].[Cr+3] |
| InChIKey | KVIYQADEXNCDCB-UHFFFAOYSA-H |
| InChI | InChI=1S/2Cr.3H2O4S.H2O/c;;3*1-5(2,3)4;/h;;3*(H2,1,2,3,4);1H2/q2*+3;;;;/p-6 |
| PubChem CID | 155428 |
| UN Number | UN3260 |
| REACH Code | Y110 |
| HTS Code | 28332940 |
| Tariff Code | 2833292000 |
Safety & GHS
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Corrosive
GHS05
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Health Hazard
GHS07
Hazard statements
- H302 + H312 + H332 Harmful if swallowed, in contact with skin or if inhaled
- H314 (sub cat. 1B) Causes severe skin burns and eye damage
- H317 May cause an allergic skin reaction
Precautionary statements
- P260 Do not breathe dust/fume/gas/mist/vapours/spray
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P301+312 IF SWALLOWED: Call a POISON CENTER or doctor/physician if you feel unwell
- P302+352 IF ON SKIN: Wash with soap and water
- P304+340 IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing
- 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, Portuguese, 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
- chromium(3+);trisulfate;hydrate
- Cr2H2O13S3
- dichromic;trisulfate;hydrate
- KVIYQADEXNCDCB-UHFFFAOYSA-H
Frequently asked questions
What is Chromium(III) sulfate hydrate commonly used for?
Chromium(III) sulfate hydrate is primarily used in tanning leather, as a mordant in dyeing textiles, and in chromium electroplating processes.
What is the chemical formula and molecular weight of Chromium(III) sulfate hydrate?
The formula is **Cr₂(SO₄)₃·xH₂O** (hydrate form varies), and the anhydrous molecular weight is **392.18 g/mol** (for the base formula without water).
How should Chromium(III) sulfate hydrate be stored?
Store in a tightly sealed container at **ambient temperature**, away from incompatible substances and moisture.
What grades of Chromium(III) sulfate hydrate does Molekula supply?
Molekula supplies **technical/industrial grade** Chromium(III) sulfate hydrate, suitable for manufacturing and industrial applications.
Can Molekula supply Chromium(III) sulfate hydrate in bulk quantities?
Yes, we offer bulk packaging options—please contact our sales team for specific quantities and logistics details.
What documentation comes with an order of Chromium(III) sulfate hydrate?
Each order includes a **Certificate of Analysis (CoA)**, Material Safety Data Sheet (MSDS), and a compliance certificate for regulatory requirements.
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.