1. Chemical Name: Sodium dihydrogen phosphate
2. Molecular Formula: NaH2PO4 · 2H2O
3. Molecular Weight: 156.01
4. Character: Clourless column crystal, odourless and with slight deliquescence. The relative density is 2.04 and melting point is 60℃. It is easily soluble in water and insoluble in ethahol. If heated below 100 ℃, it can dissolve in crystal water and convert to monohydrate salt. If heated to 100℃, it will lose crystal water and change to anhydrous substances, which will become sodium metaphosphate if continue to be heated.
5. Use: In food processing industry, it is used as buffering agent, character improving agent, emulsifier, nutrition supplement, antioxidant additive , brine penetrable agent, sugar clarifier, stabilizer, coagulant, fowl scalding agent.
6. Packing: It is packed with polyethylene bag as liner and a compound plastic woven bag as the outer layer. The net weight of each bag is 25kg.
7. Storage & Transport: It should be stored in a dry and ventilative warehouse, kept away from moistrue and hot. Furthermore, it must be stored separately from poisonous substances. Unload with care as to avoid damage.
|
English |
HG2919-2000 |
FCC1996 |
|
Assay(NaH2PO4 ),% |
98.0-103.0 |
98.0-103.0 |
|
pH-value (10g/L solution) |
4.2-4.6 |
-- |
|
Insoluble in water, ≤% |
0.2 |
0.2 |
|
Heavy Metal(Pb), ≤% |
0.001 |
10mg/kg |
|
As, ≤% |
0.0003 |
3mg/kg |
|
Chlorides (F), ≤% |
0.005 |
0.005 |
|
Loss on drying NaH2PO4 ≤% NaH2PO4 .H2O,% NaH2PO4 . 2H2O,% |
2.0 |
2.0 |
|
10.0-15.0 |
10.0-15.0 |
|
|
20.0-25.0 |
20.0-25.0 |
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