Monopotassium Phosphate

Chemical Name: Monopotassium Phosphate

Molecular Formula: KH2PO4

Molecular Weight: 136.09

CAS: 7778-77-0

Character: Colorless crystal or white crystalline powder or granule. No smell. Stable in the air. Relative density 2.338. Melting point is 96℃ to 253℃. Soluble in water (83.5g/100ml, 90 degrees C), The PH is 4.2-4.7 in 2.7% water solution. Insoluble in ethanol.

 

Product Detail

Usage: In the food industry, Used as chelating agent, yeast food, flavoring agent, nutrition fortifier, fermentation agent, bentonite relaxant.
Packing: It is packed with polyethylene bag as inner layer, and a compound plastic woven bag as outer layer. The net weight of each bag is 25kg.
Storage and Transport: It should be stored in a dry and ventilative warehouse, kept away from heat and moisture during transportation, unloaded with care so as to avoid damage. Furthermore, it must be stored separately from poisonous substances.
Quality Standard: (FCC-V, E340(i), USP-30)

Name of index FCC-V E340(i) USP-30
Description Odourless, colourless crystals or white granular or crystalline powder
Solubility -- Freely soluble in water. Insoluble in ethanol --
Identification Pass test Pass test Pass test
pH of a 1 % solution -- 4.2—4.8 --
Content(as dry base) % ≥98.0 98.0 (105℃,4h) 98.0-100.5 (105℃,4h)
P2O5 Content(Anhydrous basis) % -- 51.0 –53.0 --
Water insoluble(Anhydrous basis) ≤% 0.2 0.2 0.2
Organic volatile impurities -- -- Pass test
Fluoride ≤ppm 10 10(expressed as fluorine) 10
Loss on drying ≤% 1 2 (105℃,4h) 1 (105℃,4h)
Heavy metals ≤ppm -- -- 20
As ≤ppm 3 1 3
Cadmium ≤ppm -- 1 --
Mercury ≤ppm -- 1 --
Lead ≤ppm 2 1 5
dd

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