Industrial Tannin

Structural Formula:
 
Mo: C ₇₆ H ₅₂ O ₄₆
Property:Yellowish or light brown irregular powder,oxidized with deeper color and bitter taste when exposed to air, odorless; soluble in water, ethanol, acetone,and ethyl acetate.

Technical Index:
Quality Standard: GB5308-85
Index Name:First Grade Product
Appearance:Yellowish or brownish irregular powder
Content (%) ≥ 81.0
Moisture Content(%) ≤ 9.0
Water(%) ≤ 0.6
Total Color ≤2.0

Uses: Used as raw materials for manufacturing pharmaceutical gallic acid, pyrogallic acid, and sulfanilamide drugs in chemical industry; slurry-treating agent in petrochemical industry;in preparation of various treating agents for various industrial manufactures.
Packing: In knit bags lined with plastic bags with the per-bag capacity of 25 kilograms; avoiding moisture and light; hermetically sealed in storage.

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