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It appearsred liquid and powder. It can be easy soluted in water or ethanol .It has well stability but change color when add metal,the color is different on its PH value.
Technological Process:
Raw Material → Immersion in water → Filtering →Purification → Concentration → Killing of Bacteria →Liquid
Quality standard:Industry Standard QB 1228-91
item
liquid
powder
E(1% 1cm) 535nm
≥ 8
≥ 15
Ash content %
≤5.0
≤ 12.5
PH
≤3.0
≤3.5
As %
≤0.0001
≤0.0001
Pb %
≤0.0005
≤0.0005
Total bacteria /ml
≤10
Colon bacillus /100ml
≤30
≤30
Pathogenic bacteria
none
none
alcohol content %
10∼20
Usages: Applicable to food, beverages and wine.
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