Monosodium Phosphate (MSP) Supplier in Malaysia
- Also known as
- Sodium Dihydrogen Phosphate
- Sodium Phosphate Monobasic
- Monobasic Sodium Phosphate
- Monosodium Dihydrogen Orthophosphate
Monosodium phosphate supplier for food, water-treatment, cleaning and metal-finishing buyers in Malaysia. The same salt is sold as sodium dihydrogen phosphate, sodium phosphate monobasic and MSP, formula NaH2PO4, with CAS 7558-80-7 for the anhydrous material. Food-grade material is the additive E339(i).
It is the monobasic member of the family, so its solution is acidic, while the disodium salt is mildly alkaline and the trisodium salt is strongly alkaline. Those two are separate products with their own pages, and a substitution changes the pH of whatever system the phosphate is dosed into.
Commercial choice runs across anhydrous free-flowing powder, monohydrate and dihydrate crystals, in technical, food and reagent or pharmaceutical grades. State the hydrate and grade you work to, since anhydrous material carries more phosphate per tonne while the crystals dissolve faster.
Food, water-treatment, cleaning and phosphating buyers use that acidity directly, while textile dyehouses, feed blenders and laboratories take the same salt. Send the hydrate, grade, specification limits, quantity and destination and the offer will be built around them. Pack format and documentation are settled at quotation stage, and supply is subject to applicable requirements.
- CAS number
- 7558-80-7
- Formula
- NaH2PO4
- Grade
- technical, food, pharmaceutical
- Appearance
- white free-flowing powder or granules (anhydrous); colourless to white crystals (hydrated forms)
Monosodium Phosphate grades and forms
We supply several forms to suit different formulating and dosing setups. If you need a size that is not listed, ask us.
| Grade | Form | Assay | Typical use | Packing |
|---|---|---|---|---|
| Food grade monosodium phosphate (anhydrous) | white free-flowing powder or granules | — | Acidulant, buffering salt and leavening acid (E339(i)) in beverage powders, dairy blends, bakery mixes and processed foods that need an acidic phosphate rather than an alkaline one. | Confirm the required pack format with the quotation. |
| Technical grade monosodium phosphate (anhydrous) | white powder | — | Boiler and process-water phosphate dosing, acidic cleaning blends and metal-treatment baths where food-additive documentation is not part of the specification. | Confirm the required pack format with the quotation. |
| Monosodium phosphate monohydrate | colourless to white crystals or crystalline powder | — | Solution make-up and pH adjustment where a crystal that wets and dissolves quickly is easier to charge than a fine anhydrous powder. | Confirm the required pack format with the quotation. |
| Monosodium phosphate dihydrate | colourless to white crystals | — | The hydrate written into some reagent and process documents, chosen when the water content and crystal size already fixed in a recipe have to be matched. | Confirm the required pack format with the quotation. |
| Pharmaceutical and reagent grade monosodium phosphate | white crystalline powder | — | Phosphate buffer preparation, analytical work and formulation duties carried out to a pharmacopoeial or reagent specification. | Confirm the required pack format with the quotation. |
How to buy monosodium phosphate from ChemTrade
Request a quote for monosodium phosphate
Use the form below to request a quotation. You can also email sales@chemtrademalaysia.com or send us a message on WhatsApp.
Specifications
| Parameter | Value | Method |
|---|---|---|
| Appearance | white powder or granules (anhydrous); colourless to white crystals (hydrated forms) | — |
| Chemical formula | NaH2PO4, with the hydrates carrying water of crystallisation | — |
| Molecular weight | approximately 120 on the anhydrous basis g/mol | — |
| CAS (anhydrous) | 7558-80-7 | — |
| CAS (monohydrate) | 10049-21-5 | — |
| Solubility | freely soluble in water, and the solution is acidic, in contrast with the mildly alkaline dibasic salt and the strongly alkaline tribasic salt | — |
| Commercial forms | anhydrous, monohydrate and dihydrate | — |
| Food additive code | E339(i) on food-grade material | — |
| Grade checks | assay, moisture, pH of solution, insolubles, heavy metals and particle size confirmed against the required grade | — |
Monosodium Phosphate applications
Safety and handling
Hold the material sealed and dry, out of humid air that lumps anhydrous powder and slowly converts it towards a hydrate. Keep dust down at the charging point, wear gloves and eye protection, and wash off any skin or eye contact. The salt is acidic in water, so store it clear of strong alkalis and work to the safety information issued for the grade quoted.
Common questions about monosodium phosphate
Is monosodium phosphate the same as sodium dihydrogen phosphate?
Yes. Sodium dihydrogen phosphate is the systematic name, sodium phosphate monobasic is the reagent-catalogue name and MSP is the trade shorthand, all for NaH2PO4. Food-grade material is supplied as the additive E339(i).
What is the difference between monosodium, disodium and trisodium phosphate?
They are three distinct sodium phosphate salts, differing in how much of the phosphoric acid has been neutralised. Monosodium phosphate gives an acidic solution, the disodium salt is mildly alkaline and the trisodium salt is strongly alkaline. Order the exact salt printed on your specification, since swapping one for another shifts the pH of the whole system.
Which hydrate of monosodium phosphate should I order?
That follows from how the salt is charged. Anhydrous powder is the densest phosphate source and is usual in dry blends and automated dosing, while monohydrate and dihydrate crystals wet out fast and weigh cleanly for made-up solutions. Hydrated crystals include water of crystallisation, so the same tonnage supplies less active salt.
How does food grade monosodium phosphate differ from technical grade?
Both are the same phosphate salt. Food grade is controlled and documented for E339(i) use in food and beverage systems, while technical grade is specified for water treatment, cleaning and metal-treatment duties. Name the end use in the enquiry so the documentation your process expects is addressed.
Is monosodium phosphate acidic in solution?
Yes. It is the monobasic salt of phosphoric acid, so an aqueous solution sits below neutral, which is what makes it useful as a leavening and buffering acid and in acidic cleaning or phosphating baths. Where alkalinity is wanted instead, the dibasic or tribasic sodium phosphate is the correct enquiry.
What details are needed for a monosodium phosphate price enquiry?
The hydrate, the grade, any specification limits that bind, the quantity per shipment and where it has to be delivered. Naming the pack format and the documents your process expects at the same time keeps the offer from being a bare unit price that then has to be revised.