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      Monosodium Phosphate

      Update: 2013/10/14 View:
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      Introduction
       

      Chemical Name:

      Monosodium Phosphate  Sodium Dihydrogen phosphate

      Molecular Formula:

      NaH2PO4, NaH2PO4·H2O, NaH2PO4·2H2O

      Molecular Weight:

      anhydrous: 120.01; Monohydrate: 138.01; Dihydrate: 156.01

      CAS:

      anhydrous: 7558-80-7; Monohydrate: 10049-21-5; Dihydrate: 13472-35-0

      Character:

      It is colorless column crystal, odorless, slightly deliquescence. The relative density is 2.04 and melting point is 60. It is easily soluble in water but insoluble in ethanol. If heated below 100, it can dissolve in crystal water and convert to monohydrate salt. When heated to 100, it will lose crystal water and change to anhydrous substances, which will become sodium metaphosphate if continue to be heated.

      Uses:

      In food industry, it is used as buffering, character improving agent, emulsifier, nutrition supplement, antioxidant additive, brine penetrable agent, sugar clarifier, stabilizer, coagulant, fowl scalding agent.

      Packing:

      It is packed with polyethylene bag as liner and a compound paper-plastic woven bag as the outer layer. The net weight of each bag is 25kg.

      Quality index:

      Quality index

      Specification

      GB25564-2010

      HG2919-2000

      FCC1996

      Assay%

      Content (NaH2PO4)

      98.0-103.0

      98.0-103.0

      98.0-103.0

      PH value

      PH-Value

      4.1-4.7

      4.2-4.6

      --

      Water insoluble matter ≤%

      Insoluble In Water

      0.2

      0.20

      0.20

      Heavy Metal≤%

      Heavy Metal(Pb)

      0.001

      0.001

      0.001

      Pb≤%

      Pb

      0.0004

      ---

      ---

      As ≤%

      As

      0.0003

      0.0003

      0.0003??

      Fluoride(F)≤%

      Fluorides (F)

      0.005

      0.005

      0.005

      Loss on Dry%

      NaH2PO4

      2.0

      2.0

      2.0

      NaH2PO4·H2O

      10.0-15.0

      10.0-15.0

      10.0-15.0

      NaH2PO4·2H2O

      20.0-25.0

      20.0-25.0

      20.0-25.0

      Phosphorus pentoxide%

      NaH2PO4

      44.6

      44.6

      58.0-60.95
      (NaH2PO4)