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Product name: Food-tannic acid
Molecular formula: C76H52O46
Molecular weight: 1701.18
Structural formula:
Specification | Food grade | ||
executive standard | FCC-IV | ||
content | ≥93% | ≥96% | ≥98% |
loss on drying | ≤9% | ≤9% | ≤9% |
water insoluble | ≤0.2% | ≤0.1% | ≤0.1% |
ignition residue | ≤0.1% | ≤0.1% | ≤0.1% |
heavy metal | 20ppm | 15ppm | 10ppm |
arsenic | ＜3ppm | ＜3ppm | ＜3ppm |
lead | ＜5ppm | ＜5ppm | ＜5ppm |
mercury | ＜1ppm | ＜1ppm | ＜1ppm |
gallic acid | ≤4% | ≤2.5% | ≤0.75% |
production scale | 600 T/Y | 300 T/Y | 100 T/Y |
packing | Cardboard drum, 25kg/ drum | Cardboard drum, 25kg/ drum | Cardboard drum, 25kg/ drum |
Character: This product is light yellow to light brown powder, with special smell and astringent taste. Soluble in 1 part water or ethanol, soluble in acetone, insoluble in chloroform or ether.
Quality indicators: comply with the food and drug administration "Food Chemistry Specification" 5th edition and codex Alimentarius Standard; U.S. Food FC-IV standard.
To use: mainly used in cosmetics, food antioxidants, clarifiers of low alcohol, oil antioxidants, but also used in bromelain food processing and other aspects.
Storage: keep away from moisture and light and store sealed
Packing: cardboard drum for external use, plastic bag for inside, 25kg net per barrel.
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