Molekula
Diammonium hydrogenphosphate
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
Diammonium hydrogenphosphate is a white crystalline solid used as a fertilizer, flame retardant, and in food additives. It is also employed in pharmaceuticals and industrial applications. CAS: 7783-28-0, Molecular formula: (NH4)2HPO4, Molecular weight: 132.06 g/mol, Storage: Ambient, Signal word: None. Molekula supplies Diammonium hydrogenphosphate 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.
Often bought together
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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1 kg — £49.20 per pack ex VAT · £59.04 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 | White crystalline powder |
| pH | 7.6 - 8.2 |
| Purity | ⩾ 99.0% |
| Heavy Metals (Pb) | ≤ 4ppm |
| Arsenic (As) | ≤ 10ppm |
| Fluoride (F-) | ≤ 3ppm |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Neutral |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Appearance | White crystals |
| Odour | Odorless |
| Melting Point | 155 °C with decomposition |
| Density | 1.6 (relative, water = 1) |
Source: PubChem CID 24540 (HSDB, ICSC)
Identification
| Property | Value |
|---|---|
| SKU | 15580027 |
| CAS Number | 7783-28-0 |
| IUPAC Name | diazanium;hydrogen phosphate |
| Molecular Formula | (NH4)2HPO4 |
| Molecular Weight | 132.06 |
| Exact Mass | 132.03 |
| SMILES | [NH4+].[NH4+].OP(=O)([O-])[O-] |
| InChIKey | MNNHAPBLZZVQHP-UHFFFAOYSA-N |
| InChI | InChI=1S/2H3N.H3O4P/c;;1-5(2,3)4/h2*1H3;(H3,1,2,3,4) |
| PubChem CID | 24540 |
| REACH Code | Y113 |
| TSCA Listed | Yes |
| HTS Code | 3105300000 |
| Tariff Code | 3105300000 |
Safety & GHS
Precautionary statements
- P264 Wash thoroughly after handling
- P280 Wear protective gloves/protective clothing/eye protection/face protection
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
- Akoustan A
- Ammonium phosphate dibasic
- Coaltrol LPA 445
- Diammonium acid phosphate
- Diammonium hydrogen orthophosphate
- Diammonium orthophosphate
- DIAMMONIUM PHOSPHATE
- K2 (phosphate)
- Pelor
- Phosphoric acid, diammonium salt
Frequently asked questions
What is diammonium hydrogenphosphate used for?
It is primarily used as a fertilizer and in flame retardant formulations.
What is the chemical formula and molecular weight?
The formula is (NH4)2HPO4 with a molecular weight of 132.06 g/mol.
How should diammonium hydrogenphosphate be stored?
It should be stored at ambient temperature, away from moisture and heat.
What grade is available?
We offer reagent grade and technical grade for industrial use.
Can Molekula supply it in bulk?
Yes, we can supply diammonium hydrogenphosphate in bulk quantities upon request.
What documentation comes with the order?
Each order includes a Certificate of Analysis and Safety Data Sheet (SDS).
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.