<thead id="zzvrl"></thead>

  • <blockquote id="zzvrl"><del id="zzvrl"></del></blockquote>
      1. 
        

        Welcome to Jiurui Biology Chemistry Co.,?Ltd website!
        Jiurui Biology  Chemistry Co.,?Ltd
        Key words: Tannic acid, gallic acid, benzoic acid, hesperidin, chlorogenic acid, resveratrol
        Cortex Eucommiae
        Home > Products > Gallnut products
        Industrial Tannic Acid

        Industrial Tannic Acid

        Product Name: Tannic Acid
        Alias: Tannic Acid , Tannin, Gallic Tannin
        Molecular Formula: C76H52O46
        Molecular Weight: 1701.18

        Structural formula:

         

        Property : Light yellow or light brown powder, oxidized in the air, the color becomes darker, odorless and astringent. It is soluble in water, ethanol, acetone, ethyl acetate, but insoluble in chloroform or ether.

        Specifications: Comply with national industry standards LY-T 1300, LY-T1640, LY-T1641; US ??Food and Drug Administration "Food Chemistry Specification" 5th edition and US Food Chemistry Code standards; US Food Standards; British Pharmacopoeia.

        Technical index:

        Specification

        Industrial grade

        Pharmaceutical grade

        Food grade

        Appearance

        Yellow powder

        Light yellow powder

        Light yellow powder

        Content

        ≥81%

        ≥90%

        93%-98%

        Loss on drying

        ≤9%

        ≤9%

        ≤9%

        Residue on ignition

        ——

        ≤1%

        ≤1%

        Heavy metal

        ——

        ≤30ppm

        ≤20ppm

        Other Index

        See COA

        See COA

        See COA

        Uses:
        (1) Used for the extraction of germanium, the manufacture of acid iron ink, metal rust removal, and the raw material of mud treatment agent for oil drilling. It can produce gallic acid and pyrogallic acid, and can also be used as leather tanning agent, mordant, rubber coagulant, protein agent, alkaloid precipitation agent.
        (2) Medicinal tannic acid has antibacterial, enzyme-removing and astringent effects. It is used in antibacterial, tinea, detoxification, dysentery and other medicinal preparations, and also used to synthesize sulfonamide synergists.

        (3) Used in cosmetics, food antioxidants, clarifying agents for low alcohol alcohols, oil antioxidants, and also used in bromelain food processing.

        Storage: Avoid moisture and light, sealed tightly, no contact with metal.

        Product validity: two years.

        Packing: Packed in kraft paper bag or cardboard drum, net weight 25 kg.

        Main Products:Industrial Tannic Acid  Gallic acid  Propyl gallate  Pyrogallic acid  3,4,5-Trimethoxybenzoic acid  Methyl 3,4,5-trimethoxybenzoat  
        Contact Us

        Contact Us

        24-hour service hotline

        +86-744-8561603(International Business)
        +86-744-8561665,+86-744-8561604?(Domestic Business)
        E-mail:
        info@jiuruibiochem.com sales@jiuruibiochem.com
        Address:Section C, Economic Development Zone, Zhangjiajie, Hunan, China.
        Jiurui Biology & Chemistry Co.,?Ltd
        Copyright(C)2020, Jiurui Biology & Chemistry Co.,?Ltd . All Rights Reserved. Supported by  ChemNet ChinaChemNet Toocle
        <thead id="zzvrl"></thead>

      2. <blockquote id="zzvrl"><del id="zzvrl"></del></blockquote>
          1. 
            

            无码乱码精品少妇一级内射,91麻豆国产福利精品,四虎国产精品永久地址入口,一级做a爰片久久毛片,国产伦精品一区二区高清版