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China, Chinese High-Quality Annic Acid Powder for Industrial Use CAS1401-55-41 Industrial Products Supplier Manufacturer Details, price list catalog:
China Industrial Products Supplier Manufacturer List Catalog
Inorganic ChemicalsAcidAnnic Acid PowderCAS1401-55-4
Xi'an Tongze Biotech Co., Ltd.
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Product Description Product DescriptionHigh-Quality Annic Acid Powder for Industrial UseTannic acid is a tannin obtained from Chinese gallnut. It is a yellow or light brown light non-crystalline powder or scale; odorless, with a slight special smell and extremely astringent taste. It is soluble in water and ethanol, easily soluble in glycerol. Its aqueous solution turns blue-black when it meets iron salt solution, and adding sodium sulfite can delay the color change. In industry, tannic acid is widely used in tanning leather and making blue ink. Tannic acid can coagulate protein. People use tannic acid to chemically treat raw pig skin and raw cow skin, which can coagulate the soluble protein in the raw skin. As a result, the raw skin that would stink and rot after a few days becomes beautiful, clean, flexible and durable leather. This leather making process is called leather tanning. Density2.1±0.1 g/cm3Melting point218C(lit.)Molecular formulaC76H52048Molecular weight1701.198Flash point198oCExact mass1700.172974PSA777.98000LogP13.33AppearanceLight yellow to yellowish brown solid with a faint odorRefractive index1.927Storage conditionsPacked in non-toxic plastic bags or glass bottles. Store in a cool and dry place.Tannic acid is a naturally occurring compound in plants that has many uses including:1.Food processing: Tannins can be used as food preservatives and antioxidants, and can also be used to make red wine, beer, coffee, etc.2. Tannic acid has antioxidant, anti-inflammatory, antibacterial, anti-cancer and other effects, can be used to treat cardiovascular diseases, cancer and other diseases.3. Cosmetics: Tannin can be used to make cosmetics such as anti-oxidation, anti-wrinkle and whitening.4. Industry: Tannic acid can be used to make paints, dyes, resins and so on.In short, tannins have a wide range of uses in many fields.Company Profile
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