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TECHNICAL MONO-AMMONIUM PHOSPHATE (TMAP)                 Download our Specification

Technical Mono-ammonium phosphate is industrially prepared by the exothermic reaction of phosphoric acid and ammonia. The Technical grade is 99% water soluble, main use as water soluble fertilizer blended for irrigation application. Containing two important elements for crops development, providing nitrogen and phosphorous. 

TMAP is an important fertilizer . It is water soluble and dissolves rapidly in soil if adequate moisture is present. Upon dissolution, the two basic components of the fertilizer separate again to release NH4 + and H2PO4 - . Both of these nutrients are important to sustain healthy plant growth. The pH of the solution surrounding the granule is moderately acidic, making TMAP an especially desirable fertilizer in neutral and high pH soils. Agronomic studies show that there is no significant difference in P nutrition from various commercial P fertilizers under most conditions. TMAP is applied in concentrated bands beneath the soil surface in proximity of growing roots or in surface bands. It is also commonly applied by spreading across the field and mixing into the surface soil with tillage. In powdered form, it is an important component of suspension fertilizers. It readily dissolves into a clear solution that can be used as a foliar spray or added to irrigation water. The P2O5 equivalent content of high-purity TMAP is usually 61%.



  • Fully water-soluble

  • Consists of 100% plant nutrients

  • Suitable for irrigation application and production of fertilizer blends and nutrient solutions.

  • Containing two important elements for crops development, providing nitrogen and phosphorous.

  • Suitable for the production of nutrient solutions, Includes Anti caking
    Low Ph


Technical Mono-Ammonium Phosphate

Molecular Formula: NH4H2PO4 Molecular Weight: 115.025

CAS number: 7722-76-1 

Guaranteed Technical Specifications: 

  • Appearance White crystaline

  • P2O5  61% Min

  • N 12% Min

  • Chrome 0.0003% Max

  • Free Lead  0.0004% Max

  • Cadmium  0.0001% Max

  • Arsenic (As) 0.0002% Max

  • Mercury 0.00001% Max

  • Nickel  0.0004% Max

  • Moisture 0.1% Max

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