Molekula
Ammonium dihydrogen phosphate
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 dihydrogen phosphate is a white crystalline solid used as a fertilizer, flame retardant, and in buffer solutions. It is stable at room temperature and does not require special storage conditions. CAS: 7722-76-1, Molecular formula: NH4H2PO4, Molecular weight: 115.03 g/mol. Molekula supplies ammonium dihydrogen phosphate 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
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.
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1 kg — £26.40 per pack ex VAT · £31.68 inc. VAT
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Specifications
| Property | Value |
|---|---|
| Appearance | White crystalline powder |
| Water | ≤ 0.2% |
| Identification | Conforms to reference |
| pH | Report |
| Assay | ≥ 99.0% |
| P2O5 | ≥ 61.0% |
| Water insoluble matter | ≤ 0.1% |
| Nitrogen (N) | ≥ 11.8% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Acid |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Appearance | White, tetrahedral crystals |
| Odour | Odorless |
| Melting Point | 190 °C |
| Density | 1.80 g/cm³ |
| Solubility (other solvents) | Slightly soluble in ethanol; insoluble in acetone |
| Refractive Index | 1.525 |
Source: PubChem CID 24402 (HSDB)
Identification
| Property | Value |
|---|---|
| SKU | 80654278 |
| CAS Number | 7722-76-1 |
| IUPAC Name | azanium dihydrogen phosphate |
| Molecular Formula | NH4H2PO4 |
| Molecular Weight | 115.03 |
| Exact Mass | 115.0034 |
| SMILES | [NH4+].OP(=O)(O)[O-] |
| InChIKey | LFVGISIMTYGQHF-UHFFFAOYSA-N |
| InChI | InChI=1S/H3N.H3O4P/c;1-5(2,3)4/h1H3;(H3,1,2,3,4) |
| PubChem CID | 24402 |
| REACH Code | Y113 |
| TSCA Listed | Yes |
| HTS Code | 31051000 |
| Tariff Code | 3105100090 |
Safety & GHS
Precautionary statements
- P264 Wash thoroughly after handling
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P308+313 IF exposed or concerned: Get medical advice/attention
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, Russian, 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
- Ammonium biphosphate
- Ammonium diacid phosphate
- Ammonium dihydrogen orthophosphate
- Ammonium dihydrophosphate
- Ammonium monophosphate
- Ammonium phosphate, monobasic
- MONOAMMONIUM PHOSPHATE
- Monobasic ammonium phosphate
- Phosphoric acid, monoammonium salt
- Primary ammonium phosphate
Frequently asked questions
What is ammonium dihydrogen phosphate used for?
It is commonly used as a fertilizer, flame retardant, and in the production of specialty chemicals and pharmaceuticals.
What is the chemical formula and molecular weight of ammonium dihydrogen phosphate?
The formula is NH4H2PO4 and the molecular weight is 115.03 g/mol.
How should ammonium dihydrogen phosphate be stored?
It should be stored at ambient temperature, in a dry and well-ventilated area, away from moisture and incompatible materials.
What grade is available for ammonium dihydrogen phosphate?
Molekula offers technical grade ammonium dihydrogen phosphate; custom grades are available upon request.
Can Molekula supply ammonium dihydrogen phosphate in bulk?
Yes, Molekula can supply ammonium dihydrogen phosphate in bulk quantities; please contact our sales team for pricing and availability.
What documentation comes with an order of ammonium dihydrogen phosphate?
Each order includes a Certificate of Analysis (CoA) and Safety Data Sheet (SDS); additional documentation can be provided upon request.
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.