Molekula
Aluminium ammonium 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
Aluminium ammonium sulfate dodecahydrate is a white crystalline inorganic salt commonly used in water treatment for coagulation, paper sizing, and as a mordant in dyeing. It is also employed in fireproofing and as a food additive (E523) to clarify beverages. CAS 7784-26-1, molecular formula H₄AlNO₈S₂·12H₂O, molecular weight 453.33 g/mol. Stored at ambient conditions, with a signal word of *Warning* for handling. Molekula supplies aluminium ammonium sulfate dodecahydrate from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Overview
Aluminium ammonium sulfate dodecahydrate is a white crystalline inorganic salt commonly used in water treatment for coagulation, paper sizing, and as a mordant in dyeing. It is also employed in fireproofing and as a food additive (E523) to clarify beverages. CAS 7784-26-1, molecular formula H₄AlNO₈S₂·12H₂O, molecular weight 453.33 g/mol. Stored at ambient conditions, with a signal word of *Warning* for handling. Molekula supplies aluminium ammonium 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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500 g — £25.00 per pack
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1 kg — £30.90 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 | White crystal |
| Water | ≤4% |
| Heavy metals | ≤0.02% |
| pH | 3 - 7 |
| Assay | ≥99% |
| Insoluble in water | ≤1.0% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Acid |
Identification
| Property | Value |
|---|---|
| SKU | 46855753 |
| CAS Number | 7784-26-1 |
| Molecular Formula | H4AlNO8S2 · 12H2O |
| Molecular Weight | 453.33 |
| SMILES | [NH4+].O.O.O.O.O.O.O.O.O.O.O.O.[O-]S(=O)(=O)[O-].[O-]S(=O)(=O)[O-].[Al+3] |
| REACH Code | Y113 |
| TSCA Listed | Yes |
| HTS Code | 2833.30.0000 |
| Tariff Code | 2833300000 |
Safety & GHS
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Health Hazard
GHS07
Hazard statements
- H315 Causes skin irritation
- H319 Causes serious eye irritation
- H335 May cause respiratory irritation
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
- P302+352 IF ON SKIN: Wash with soap and water
- P304+P340 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
No alternate names recorded for this product.
Frequently asked questions
What is aluminium ammonium sulfate dodecahydrate commonly used for?
It is primarily used as a mordant in dyeing and printing textiles, in water treatment for coagulation/flocculation, and as a fire retardant in paper and wood products.
What is the chemical formula and molecular weight of this compound?
The formula is **H₄AlNO₈S₂·12H₂O**, and the molecular weight is **453.33 g/mol**.
What safety classification and signal word does this product have?
The product carries a **Signal Word: Warning** and is classified under GHS regulations (check full SDS for hazard details).
How should aluminium ammonium sulfate dodecahydrate be stored?
Store in a **cool, dry place at ambient temperature**, away from incompatible substances (e.g., strong oxidizers).
Does Molekula supply this compound in bulk quantities?
Yes, we offer **bulk packaging options** (e.g., 25kg bags, 1MT containers) for industrial and commercial buyers—contact us for custom quotes.
What documentation comes with an order of this product?
Each order includes a **Certificate of Analysis (CoA)**, **Material Safety Data Sheet (MSDS/SDS)**, and a **packing list** for compliance and safety.
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.