|Specification||GB 1886.328-2021||FCC VII|
|Content (Na2H2P2O7),w/% ≥||94.0||93.0-100.5|
|Arsenic (As),mg/kg ≤||3.0||3.0|
|Fluoride (as F),mg/kg ≤||50.0||50.0|
|Heavy metal (as Pb),mg/kg ≤||10.0||————|
|Insoluble substances,w/% ≤||0.6||1.0|
|Lead (Pb),mg/kg ≤||2.0||2.0|
|pH (10g/L Solution)||4.0±0.5||————|
1、Chemical Name: Sodium Acid Pyrophosphate
2、Molecular Formula: Na2H2P2O7
3、Molecular Weight: 221.94
5、Character: It is white crystalline powder. Relative density is 1.862. It’s soluble in water, insoluble in ethanol. Aqueous solution is alkaline. It reacts with Fe2+ and Mg2+ to form chelates.
6、Usage: In food industry, it is used as buffering agent, swelling agent, chelating agent, stabilizer, emulsifier and color improver.
7、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.
8、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.