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 2000 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
Ammonium iron(II) sulfate hexahydrate is a greenish crystalline inorganic salt, commonly used as a mordant in dyeing, a nutrient in microbial culture media, and a reagent in chemical analysis. It is also employed in water treatment for phosphate removal and as a feed additive for livestock. This chemical has a CAS number of 7783-85-9, with the molecular formula (NH4)2Fe(SO4)2·6H2O and a molecular weight of 392.14. It is stable at ambient storage conditions and carries no hazardous signal word. Molekula supplies ammonium iron(II) sulfate hexahydrate 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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500 g — £60.00 per pack ex VAT · £72.00 inc. VAT
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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 | blueish green crystals |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Acid |
Identification
| Property | Value |
|---|---|
| SKU | 89966055 |
| 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 | 2842908080 |
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.
Synonyms
No alternate names recorded for this product.
Frequently asked questions
What is ammonium iron(II) sulfate hexahydrate commonly used for?
It is primarily used as a primary standard in redox titrations, such as standardizing potassium permanganate and potassium dichromate solutions, a nutrient source in fertilizers, and as a coagulant in water treatment.
What is the chemical formula and molecular weight of this compound?
The formula is (NH₄)₂Fe(SO₄)₂·6H₂O, and its molecular weight is 392.14 g/mol.
How should ammonium iron(II) sulfate hexahydrate be stored?
Store it in a cool, dry place at ambient temperature, protected from moisture and strong oxidizing agents.
What grades or purity levels are available for this product?
We supply this compound in technical grade and analytical/ACS grade purity levels, depending on application requirements.
Can Molekula supply this product in bulk quantities?
Yes, we offer bulk packaging options (e.g., 25kg drums, 1MT big bags) for industrial and commercial customers—please inquire for pricing.
What documentation comes with an order of ammonium iron(II) sulfate hexahydrate?
Each order includes a Certificate of Analysis (CoA), Material Safety Data Sheet (MSDS), 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.