Molekula
Ammonium iron (II) sulfate hexahydrate
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 1999 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
Ammonium iron(II) sulfate hexahydrate is a crystalline salt used as a reducing agent and in analytical chemistry for standardizing oxidizing agents. It is also employed in the preparation of other iron compounds and in laboratory reagents. CAS: 7783-85-9, Molecular formula: (NH4)2Fe(SO4)2 · 6H2O, Molecular weight: 392.14, Storage: Ambient, Signal word: None.
Molekula supplies Ammonium iron (II) sulfate hexahydrate at ≥99% purity in 50 g and 1 kg packs, from £26.40 inc. VAT. It is in stock for same-day dispatch. Every batch ships with a certificate of analysis, and safety data sheets are available in 5 languages. Larger quantities, up to multi-tonne, are quoted on request.
Example image for illustration only. Other packaging and pack sizes are available.
Pricing & pack sizes
In stock — same-day dispatch
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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50 g — £22.00 per pack ex VAT · £26.40 inc. VAT
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1 kg — £38.60 per pack ex VAT · £46.32 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 | Pale blue green crystalline powder |
| pH | 3~5 |
| Chloride (Cl-) | ≤0.005% |
| Assay | ≥99% |
| Water insoluble matter | ≤0.005% |
| Non-sludging to ammonia water (as SO4) | ≤0.1% |
| Lead (Pb) | ≤0.004% |
| Copper (Cu) | ≤0.002% |
| Zinc (Zn) | ≤0.02% |
| Manganese (Mn) | ≤0.05% |
| Phosphate (PO4)3- | ≤0.0005% |
| Ferric | ≤0.01% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Acid |
Identification
| Property | Value |
|---|---|
| SKU | 16633770 |
| CAS Number | 7783-85-9 |
| Molecular Formula | (NH4)2Fe(SO4)2 · 6H2O |
| Molecular Weight | 392.14 |
| SMILES | [Fe].O=S(=O)(O)O.O.N |
| REACH Code | Y113 |
| TSCA Listed | Yes |
| Tariff Code | 2842907080 |
Safety & GHS
Hazard statements
- H303 May be harmful if swallowed
Precautionary statements
- 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
- 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.
Quality certificates
Molekula Group is certified to ISO 9001:2015 (quality) and ISO 14001:2015 (environmental management), audited by a UKAS-accredited body. Both certificates are valid to 17 May 2028.
Synonyms
No alternate names recorded for this product.
Frequently asked questions
What is ammonium iron (II) sulfate hexahydrate used for?
It is commonly used as a reducing agent in titrations and as a source of iron in laboratory and industrial applications.
What is the chemical formula and molecular weight?
The formula is (NH4)2Fe(SO4)2 · 6H2O with a molecular weight of 392.14 g/mol.
How should it be stored?
Store at ambient temperature, protected from moisture and heat.
What grade is available?
The product is supplied with an assay of ≥99% and specified impurity limits, including chloride ≤0.005%, lead ≤0.004%, copper ≤0.002% and ferric iron ≤0.01%.
Can Molekula supply it in bulk?
Yes, bulk quantities are available upon request.
What documentation comes with the order?
Each order includes a Certificate of Analysis and Safety Data Sheet (SDS).
Where can I buy Ammonium iron (II) sulfate hexahydrate?
Directly from Molekula, which lists Ammonium iron (II) sulfate hexahydrate in 50 g and 1 kg packs from £26.40 inc. VAT, with a certificate of analysis for every batch. Larger quantities are quoted on request. Molekula's offices: United Kingdom, France, Spain, Germany, Italy, United States and China.
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.