| ≥1 piece |
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1.Chemical Name: sodium pyrophosphate
2. Formula: Na 4 P 2 O 7 , Na 4 P 2 O 7 · 10H 2 O
3. Molecular weight: 265.90, 446.06
4. Specificity : Colorless or w hite crystals,crystalline or granular powder.It is easily soluble in water, but is insoluble in alcohol.density: 2.45, relative density:2.45, melting point: 890 ?? . The decahydrate effloresces slightly in dry air. PH of 1% solution is about 10.
5. Quality Standard :
|
Name of index |
FCC-V |
|
Assay(On the ignited basis), ≥% |
95.0-100.5 |
|
Arsenic, ≤% |
0.0003 |
|
Lead, ≤% |
0.0004 |
|
Fluoride, ≤% |
0.005 |
|
Insoluble substances , ≤% |
0.2 |
|
Loss on Ignition Anhydrous ≤% |
0.5 |
|
Decahydrate≤% |
38.0-42.0 |
6.Usage: It is mainly used as detergent, electroplating etc. For food grade it is mainly used as emulsifier, buffer,nutrient, sequestrant, texturizer etc.
7. Packing: 25kgs net paper or plastic woven bags.
8. Storage and Transport: It should be stored in a dry, ventilative and clean warehouse; kept away from moisture and hot, Furthermore, it should be stored separately from poisonous Substances.