Molekula
Aluminium hydroxide
Aluminium hydroxide is a white, amphoteric powder used as a flame retardant, antacid, and in the production of aluminium metal. It is also employed in water treatment and as a filler in polymers. Available in powder form with a molecular weight of 78.00 g/mol, it has a CAS number of 21645-51-2 and a molecular formula of H3AlO3. Stable at ambient temperatures, it requires no special storage conditions and carries no signal word. Molekula supplies Aluminium hydroxide from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Overview
Aluminium hydroxide is a white, amphoteric powder used as a flame retardant, antacid, and in the production of aluminium metal. It is also employed in water treatment and as a filler in polymers. Available in powder form with a molecular weight of 78.00 g/mol, it has a CAS number of 21645-51-2 and a molecular formula of H3AlO3. Stable at ambient temperatures, it requires no special storage conditions and carries no signal word. Molekula supplies Aluminium hydroxide from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Specifications
| Property | Value |
|---|---|
| Appearance | White powder |
| SiO2 | 40ppm |
| Fe2O3 | 75ppm |
| Na2O | 1770ppm |
| CaO | 100ppm |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Shelf Life | 24 months |
| Acidity | Neutral |
Identification
| Property | Value |
|---|---|
| CAS Number | 21645-51-2 |
| Molecular Formula | H3AlO3 |
| Molecular Weight | 78.00 |
| SMILES | O[Al](O)O |
| REACH Code | Y113 |
| TSCA Listed | Yes |
| HTS Code | 28183000 |
| Tariff Code | 281830 |
Safety & GHS
Precautionary statements
- P280 Wear protective gloves/protective clothing/eye protection/face protection
For research and industrial use only
Documents
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.
Pricing & pack sizes
Synonyms
No alternate names recorded for this product.
Frequently asked questions
What is aluminium hydroxide used for?
Aluminium hydroxide is commonly used as a flame retardant, antacid, and in the production of aluminium metal and ceramics.
What is the chemical formula and molecular weight of aluminium hydroxide?
The formula is H3AlO3 and the molecular weight is 78.00 g/mol.
How should aluminium hydroxide be stored?
It should be stored at ambient temperature, away from moisture and direct sunlight.
What grade of aluminium hydroxide does Molekula supply?
Molekula supplies aluminium hydroxide in reagent grade, suitable for laboratory and industrial applications.
Can Molekula supply aluminium hydroxide in bulk?
Yes, Molekula can supply aluminium hydroxide in bulk quantities; please contact our sales team for pricing and availability.
What documentation comes with an order of aluminium hydroxide?
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.