Monoammonium Phosphate (MAP) Supplier in Malaysia
- Also known as
- MAP
- Ammonium Dihydrogen Phosphate
- NH4H2PO4
- Ammonium Phosphate Monobasic
Monoammonium phosphate supplier for starter fertiliser, fertigation, hydroponics, ABC dry-chemical extinguishers and selected food uses in Malaysia. MAP is also called ammonium dihydrogen phosphate, ammonium phosphate monobasic and NH4H2PO4.
Agricultural MAP is commonly referenced near 12-61-0 analysis for high phosphorus delivery. Technical and food-process grades are specified by assay, insolubles and heavy-metal limits when the application requires them. This page is MAP only, not diammonium phosphate or generic ammonium phosphate blends.
Growers use water-soluble MAP in drip and hydroponic recipes because it dissolves cleanly and supplies both nitrogen and phosphorus. Fire-safety manufacturers use technical MAP in powder extinguishing compounds. Food and process plants request food-grade material only when a specification calls for it.
Send the MAP grade or analysis target, quantity and delivery location with your enquiry. Packing and documentation for the quoted lot are confirmed with the offer.

- CAS number
- 7722-76-1
- Formula
- NH4H2PO4
- Grade
- agricultural, technical, food
- Appearance
- white crystalline powder or granules
Monoammonium 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 |
|---|---|---|---|---|
| Agricultural grade MAP | water-soluble white crystalline powder, crystals or granules | typically traded near 12-61-0 (N-P2O5-K2O) | Starter fertiliser, fertigation and hydroponic nutrient programmes that need a fully soluble monobasic ammonium phosphate source of nitrogen and phosphorus. State crop programme, preferred form and application method with the enquiry. | Confirm the required pack format with the quotation. |
| Technical grade monoammonium phosphate | white crystalline powder | — | ABC dry-chemical fire-extinguisher powder, flame-retardant formulations and other industrial uses that specify monoammonium phosphate rather than a generic ammonium phosphate blend. Send purity and particle-size targets with the enquiry. | Confirm the required pack format with the quotation. |
| Food grade monoammonium phosphate | white crystalline powder | — | Food and beverage buffering, acidity regulation and yeast-nutrient uses that call specifically for food grade monoammonium phosphate (E342(i)). State the grade specification and required documentation with the enquiry. | Confirm the required pack format with the quotation. |
How to buy monoammonium phosphate from ChemTrade
Request a quote for monoammonium 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 crystalline powder or granules according to grade | — |
| Chemical formula | NH4H2PO4 | — |
| CAS number | 7722-76-1 | — |
| Solubility | freely soluble in water | — |
| Solution pH | mildly acidic in dilute aqueous solution | — |
| Nutrient ratio (agricultural grade, market reference) | commonly traded near 12-61-0 N-P2O5-K2O | — |
Monoammonium Phosphate applications
Safety and handling
Store sealed in a cool, dry place and protect from moisture. Control dust during handling and follow the safety information supplied with the quoted grade.
Common questions about monoammonium phosphate
What is monoammonium phosphate (MAP)?
Monoammonium phosphate is a water-soluble salt with the formula NH4H2PO4, also called ammonium dihydrogen phosphate or ammonium phosphate monobasic. It is traded as MAP and supplies both nitrogen and phosphorus in a single monobasic crystalline product (CAS 7722-76-1).
Is MAP the same as diammonium phosphate (DAP) or generic ammonium phosphate?
No. MAP is the monobasic salt NH4H2PO4. Diammonium phosphate (DAP) is the dibasic salt (NH4)2HPO4 with a different nutrient ratio and handling profile. A generic ammonium phosphate page may cover related salts under broader names. Order monoammonium phosphate by MAP, NH4H2PO4 or ammonium dihydrogen phosphate when that is the salt required.
What does the 12-61-0 fertiliser ratio mean for MAP?
Agricultural MAP is commonly described by a market nutrient ratio near 12-61-0, meaning roughly 12 percent nitrogen, 61 percent phosphate (P2O5) equivalent and no potash. It is a commercial reference for fertiliser buyers rather than a guarantee for every lot, so confirm the required nutrient or assay values when requesting a quotation.
Which grade of monoammonium phosphate should I request?
Agricultural grade MAP is the usual choice for starter fertiliser, fertigation and hydroponics. Technical grade suits ABC dry-powder extinguishers and industrial flame-retardant work. Food grade is selected when a food or beverage specification and matching documentation are required. State the application and any assay or impurity limits with the enquiry.
Is monoammonium phosphate fully water-soluble for hydroponics and fertigation?
Yes. MAP is widely selected for hydroponic and fertigation programmes because it dissolves readily and supplies nitrogen with phosphorus in monobasic form. Tell us the dosing method and preferred particle size so the quoted grade matches the programme.
What details are needed for a MAP price enquiry?
Provide the grade, application, target specification or nutrient ratio, quantity and delivery location. Mention packing preferences and any documents needed so availability, packing and commercial terms can be confirmed with the quotation.
