White crystalline powder or flaky crystal. Specific gravity: 2.220. It may lose crystal water when heated to 109℃. It is soluble in Hydrochloric Acid and Nitric Acid, slightly soluble in water (1.8%, 30℃). Commonly, it contains free Phosphoric Acid and has the character of hygroscopicity. Its water solution is acidic.
Quality standards
(GB25559-2010, FCC-V)
Name of index
GB25559-2010
FCC-V
Content ( as Ca) %
15.9-17.7
15.9-17.7
Pb , ≤%
0.0002
0.0002
As, ≤%
0.0003
0.0003
Heavy metal (Pb),≤%
0.001
-
Fluoride,≤%
0.0025
0.005
Moisture(60℃),≤%
1.0
1.0
Clear grade
Accord with the test
-
Carbonate
Accord with the test
-
Free acid and auxiliary salt
Accord with the test
-
Uses
In food industry, it is used as leavening agent, dough regulator, buffer, modifier, solidification agent, nutritional supplement, chelating agent, e.g., leavening agent in bake and cake; assistant fermentation agent and buffer in bread and biscuit; pectin curing agent, yeast food, modifier in meat product. When applied in fermentation, it can increase the fermentation capacity.
Packing
In 25kg composite plastic woven/paper bag with PE liner.
Storage and transport
It should be stored in a dry, ventilative and clean warehouse, kept away from water and moisture during transport and stored separately from poisonous substances. Handled with care, so as to avoid damage to packing bags.
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