Molekula
Magnesium hydrogen phosphate
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
Magnesium hydrogen phosphate (CAS 7757-87-1) is a white, crystalline inorganic salt primarily used as a buffering agent in pharmaceuticals, a nutrient supplement in fertilizers, and a pH regulator in food and industrial applications. Documented applications also include use as a polishing agent in toothpastes, an anticaking agent for table salt and silicate detergents, a stabilizer for plastics, and a food additive. Its chemical formula is Mg₃O₈P₂ with a molecular weight of 262.86 g/mol. It requires no special storage conditions and carries no signal word for hazard classification. Molekula supplies magnesium hydrogen 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.
Pricing & pack sizes
Pack sizes & pricing
Pricing on request — packs available from research to bulk quantities.
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
Specifications available on request — see Documents below or contact our sales team.
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Acid |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Appearance | Rhombic plates |
| Odour | Odorless |
Source: PubChem CID 24439 (HSDB)
Identification
| Property | Value |
|---|---|
| SKU | 89999030 |
| CAS Number | 7757-87-1 |
| IUPAC Name | trimagnesium diphosphate |
| EC Number | 231-824-0 |
| Molecular Formula | Mg3O8P2 |
| Molecular Weight | 262.86 |
| Exact Mass | 261.862 |
| SMILES | [O-]P(=O)([O-])[O-].[O-]P(=O)([O-])[O-].[Mg+2].[Mg+2].[Mg+2] |
| InChIKey | GVALZJMUIHGIMD-UHFFFAOYSA-H |
| InChI | InChI=1S/3Mg.2H3O4P/c;;;2*1-5(2,3)4/h;;;2*(H3,1,2,3,4)/q3*+2;;/p-6 |
| PubChem CID | 24439 |
| REACH Code | Y113 |
| TSCA Listed | Yes |
| HTS Code | 2835295100 |
| Tariff Code | 2835299000 |
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, 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
- magnesium phosphate
- Magnesium phosphate (Mg3(PO4)2)
- Magnesium phosphate anhydrous
- newberyte
- Phosphoric acid, magnesium salt
- Phosphoric acid, magnesium salt (1:?)
- Phosphoric acid, magnesium salt (2:3)
- trimagnesium orthophosphate
- TRIMAGNESIUM PHOSPHATE
- trimagnesium;diphosphate
Frequently asked questions
What is magnesium hydrogen phosphate commonly used for?
Magnesium hydrogen phosphate is primarily used as a buffering agent in pharmaceuticals, a nutrient supplement in fertilizers, and in water treatment to control pH and hardness.
What is the chemical formula and molecular weight of magnesium hydrogen phosphate?
The chemical formula is **Mg₃(PO₄)₂·xH₂O** (hydrated form) or **Mg₃O₈P₂** (anhydrous), with a molecular weight of **262.86 g/mol** (anhydrous).
How should magnesium hydrogen phosphate be stored?
Store in a cool, dry place at ambient temperature, away from moisture and incompatible substances. Ensure containers are tightly sealed.
What grades of magnesium hydrogen phosphate does Molekula supply?
Molekula supplies **technical grade** and **pharmaceutical grade** magnesium hydrogen phosphate, depending on purity and application requirements.
Can Molekula supply magnesium hydrogen phosphate in bulk quantities?
Yes, we offer bulk packaging options for magnesium hydrogen phosphate, including drums and totes, tailored to your production needs.
What documentation is provided with an order of magnesium hydrogen phosphate?
Each order includes a **Certificate of Analysis (CoA)**, **Material Safety Data Sheet (MSDS)**, and **batch-specific documentation** for traceability and compliance.
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.