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Beijing Entrepreneur Science & Trading Co.,ltdTannin gallnut extract tannic acid//www.lookchem.com/300w\2010-5\a164cbd9-9219-45cb-8583-5ee658ebe22f.gif
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Tannin gallnut extract tannic acid CAS NO.1401-55-4

Min.Order Quantity:
1000 Kilogram
Purity:
81.5
Port:
TianJin,CHINA
Payment Terms:
L/C,T/T

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Product Details

Keywords

  • Tannins
  • Tannic Acid
  • tannin

Quick Details

  • ProName: Tannin gallnut extract tannic acid
  • CasNo: 1401-55-4
  • Appearance: Yellow or light brown light without cr...
  • Application: 1.Tannin for medicine has the antisept...
  • PackAge: 25kg/bag
  • Port: TianJin,CHINA
  • ProductionCapacity: Metric Ton/Day
  • Purity: 81.5
  • Storage: Store in cool & dry place, keep away f...
  • Transportation: by sea
  • LimitNum: 1000 Kilogram

Superiority

factory price high quality pure tannin powder, tannin, tannic acid, tannins

yellow or light brown light without crystal powder ; odourless, has a special odor, very acerbity. soluble in water and ethanol, soluble in glycerin, hardly soluble in ether, chloroform and benzene. its aqueous solution and ferric salt solution meet blue-black, add sodium sulfite can delay the discoloration. in industry, tannic acid is widely used in tanning and manufacturing blue ink. tannic acid can make protein coagulation. people put the pig skin, cowhide chemical treatment with tannic acid, can make the rawhide soluble protein in the set. so, had put a few days will smells rotten raw hides, turned into a beautiful, clean, flexible, durable leather. this kind of leather making process, called leather tanning.

Details

factory price high quality pure tannin powder,tannic acid, tannins

yellow or light brown light without crystal powder ; odourless, has a special odor, very acerbity. soluble in water and ethanol, soluble in glycerin, hardly soluble in ether, chloroform and benzene. its aqueous solution and ferric salt solution meet blue-black, add sodium sulfite can delay the discoloration. in industry, tannic acid is widely used in tanning and manufacturing blue ink. tannic acid can make protein coagulation. people put the pig skin, cowhide chemical treatment with tannic acid, can make the rawhide soluble protein in the set. so, had put a few days will smells rotten raw hides, turned into a beautiful, clean, flexible, durable leather. this kind of leather making process, called leather tanning

function:
1.tannin for medicine has the antiseptic, enzyme-eliminating and convergent effects.
2.tannin as antibiotics to treating tinea, eliminating toxic substances and stopping diarrhea etc.
test specification test result

appearance light yellow or pass

light brown powder

solid content(%) ≧ 81.0 81.50

drying loss(%) ≦ 9.0 8.0

insoluble (%) 0.6 0.20

color ≦ 2.0 1.3

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