China Wholesale Catechins Foods Suppliers - Tannic Acid – Sanjiang
China Wholesale Catechins Foods Suppliers - Tannic Acid – Sanjiang Detail:
Product name: Tannic acid
Tannic acid is a specific form of tannin, a type of polyphenol. Its weak acidity (pKa around 6) is due to the numerous phenol groups in the structure. The chemical formula for commercial tannic acid is often given as C76H52O46, which corresponds with decagalloyl glucose, but in fact it is a mixture of polygalloyl glucoses or polygalloyl quinic acid esters with the number of galloyl moieties per molecule ranging from 2 up to 12 depending on the plant source used to extract the tannic acid. Commercial tannic acid is usually extracted from any of the following plant parts: Tara pods (Caesalpinia spinosa), gallnuts from Rhus semialata or Quercus infectoria or Sicilian sumac leaves
Chemical name: 1,2,3,4,6-penta-O-{3,4-dihydroxy-5-[(3,4,5-trihydroxybenzoyl)oxy]benzoyl}-D-glucopyranose
Other names: Acidum tannicum,Gallotannic acid,Digallic acid,Gallotannin,Tannimum,Quercitannin,Oak bark tannin,Quercotannic acid,Querci-tannic acid,Querco-tannic acid
Molecular formula: C76H52O46,
Molecular weight: 1701.19
Melting point: decomposes above 200 °C
CAS Number : 1401-55-4
Quality index : The product complies with the national standard GB5308-85.
Uses
1. This product is widely used in extraction and acid iron ink manufacturing.
2. Used to produce leather tanning agent, mordant, rubber coagulant, protein agent, alkaloid precipitant.
3. Pharmaceutical products, such as raw materials for sulfa synergists (TMP).
4. Raw material for preparing medicinal acid, pyrogallic acid and sulfa drugs are also raw material for producing gallic acid and pyrogallol.
5. The use of resins made of tannins has been investigated to remove mercury and methylmercury from solution. Immobilized tannins have been tested to recover uranium from seawater.
6. Tannins can be used for production of anti-corrosive primer.
Storage
Moisture-proof and light-proof, sealed storage
Packing
Kraft paper bag, net weight 25 kg
Specifications
Specifications |
Industrial grade |
Implementation standards |
LY/T1300-2005 |
Content |
≥81% |
Drying loss |
≤9% |
Water insoluble matter |
≤0.6% |
Color |
≤2.0 |
Packing |
Kraft paper bag, 25 kg / bag |
Production scale |
300T/Y |
ABOUT US
Leshan Sanjiang Biological Technology Co., Ltd.
18 years of history , Specializing in the manufacture of gallic acid and other gallic extract series products ;
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Our pursuit and company intention is usually to "Always fulfill our purchaser requirements". We go on to acquire and layout excellent high quality products for both our previous and new consumers and realize a win-win prospect for our customers too as us for China Wholesale Catechins Foods Suppliers - Tannic Acid – Sanjiang , The product will supply to all over the world, such as: Qatar, Zambia, Croatia, With the advanced workshop, professional design team and strict quality control system, based on mid- to high-end marked as our marketing positioning, our products are fast selling onto European and American markets with our own brands such as below Deniya, Qingsiya and Yisilanya.
By Nicola from San Francisco - 2018.12.10 19:03
The customer service reprersentative explained very detailed, service attitude is very good, reply is very timely and comprehensive, a happy communication! We hope to have a opportunity to cooperate.
By Bess from Congo - 2018.12.05 13:53