Molekula
Ammonium iron(III) sulfate dodecahydrate
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
Ammonium iron(III) sulfate dodecahydrate is a crystalline inorganic compound used as a coagulant in water treatment and as a reagent in analytical chemistry. It is a double salt containing ammonium, iron(III), and sulfate ions, with twelve water molecules of hydration. CAS: 7783-83-7, Molecular formula: (NH4)Fe(SO4)2 · 12H2O, Molecular weight: 482.19 g/mol, Storage: 2 to 8 °C, Signal word: Danger. Molekula supplies Ammonium iron(III) sulfate dodecahydrate from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Overview
Ammonium iron(III) sulfate dodecahydrate is a crystalline inorganic compound used as a coagulant in water treatment and as a reagent in analytical chemistry. It is a double salt containing ammonium, iron(III), and sulfate ions, with twelve water molecules of hydration. CAS: 7783-83-7, Molecular formula: (NH4)Fe(SO4)2 · 12H2O, Molecular weight: 482.19 g/mol, Storage: 2 to 8 °C, Signal word: Danger. Molekula supplies Ammonium iron(III) sulfate dodecahydrate from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
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.
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250 g — £29.50 per pack
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500 g — £50.00 per pack
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1 kg — £93.30 per pack
Need a different quantity or pack?
Tell us the quantity you actually need — drums, IBCs, sacks or a one-off bulk lot. We'll manufacture or source it and come back with a price, usually within one working day.
Prices exclude VAT/sales tax and shipping.
Specifications
| Property | Value |
|---|---|
| Appearance | Light purple crystals. |
| Identification | Conforms |
| Chloride (Cl-) | Max 0.05% |
| Assay | Min. 98.0% |
| Iron (Fe) | (II) Conforms |
| Copper (Cu) | Max 0.002% |
| Zinc (Zn) | Max 0.005% |
| Note | Substances not precipitated by ammonium hydroxide: Max 0.1% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | 2 to 8 °C |
| Acidity | Acid |
Identification
| Property | Value |
|---|---|
| SKU | 55268718 |
| CAS Number | 7783-83-7 |
| Molecular Formula | (NH4)Fe(SO4)2 · 12H2O |
| Molecular Weight | 482.19 |
| SMILES | [Fe+3].[O-]S(=O)(=O)[O-].[O-]S(=O)(=O)[O-].N |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 28332951 |
| Tariff Code | 2833298080 |
Safety & GHS
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Corrosive
GHS05
Hazard statements
- H315 Causes skin irritation
- H318 Causes serious eye damage
Precautionary statements
- P261 Avoid breathing dust/fume/gas/mist/vapours/spray
- P264 Wash thoroughly after handling
- 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, 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 ammonium iron(III) sulfate dodecahydrate used for?
It is commonly used as a coagulant in water treatment and as a reagent in analytical chemistry for iron determination.
What is the chemical formula and molecular weight?
The formula is (NH4)Fe(SO4)2 · 12H2O with a molecular weight of 482.19 g/mol.
How should this compound be stored?
Store at 2 to 8 °C in a cool, dry place away from light and incompatible materials.
What grade is available for this product?
Available in analytical grade for laboratory use.
Can Molekula supply this in bulk?
Yes, Molekula can supply this product in bulk quantities—please contact our sales team for details.
What documentation comes with the order?
Each order includes a Certificate of Analysis (CoA) and Safety Data Sheet (SDS) with the shipment.
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.