Dipotassium Hydrogen Phosphate

White crystalline material in a glass dish in a DKP product photo

Phosphate Related Products

Product
Dipotassium Hydrogen Phosphate

Overview

Dipotassium hydrogen phosphate (DKP) is a white crystalline powder that is very soluble in water and gives a mildly alkaline solution. It supplies both potassium and phosphorus and is an effective buffering agent.

Also known as

DKP; Dipotassium phosphate; Potassium phosphate dibasic

CAS number

7758-11-4

Molecular formula

K2HPO4

Molecular weight

174.18

Specifications

Test itemsSpecifications
AppearanceWhite crystalline powder
Content /%≥98.0
Sulfate (as SO4) /%≤0.5
As content /(mg/kg)≤3
F content /(mg/kg)≤10
Pb content /(mg/kg)≤2
Water insoluble matter /%≤0.2
pH (1%)9.0±0.4

Applications

  • Buffering agent and pH regulator
  • Nutrient in fermentation and culture media
  • Corrosion inhibitor in antifreeze coolants
  • Liquid fertilizers and specialty formulations

Packaging

25 kg/bag (PE-lined); 1000 kg/jumbo bag.

Storage

Store in a dry, ventilated warehouse with the bags kept sealed, as the product absorbs moisture from the air.

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