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Tannic
Acid
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Name
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Tech Grade
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Medicine Grade
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Dyestuff Grade
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Formula
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C76H52O46
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C76H52O46
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C76H52O46
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M.W.
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800-1700
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800-1700
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800-1700
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Description
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Light yellow or Brown powder
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Purity(%)min
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81%
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86%
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81%
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Water insoluble matter(%)
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0.60%
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0.60%
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/
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Loss on dry (%)
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9.00%
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9.00%
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10.00%
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Color NO(%) max
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2.00%
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1.00%
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/
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Burning remains (%) max
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/
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1.00%
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/
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Technical (%) max
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/
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/
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7.00%
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Packing and Store up carry
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In 25kg net each poly woven bags or fibre
drums. symbol nail down, dampproof and prevent light.
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Tannic Acid(edible Grade)
Specifications:
- Purity(%): 92% 94% 97%
- Loss on dry(%): 9.0% max
- Burning remains(%): 1.0% max
- As(%): 3PPM max
- Pb(%): 0.001 max
- Heavy metal(%): 0.002 max
- Gum of a tree: acceptability
- Gum in solubles: acceptability

3,4,5-Trimthoxy Benzoic Acid
Make measure: The Tannic or Gallic and (OCH3)2SO4+NaOH hydration
hydrolyze responses.
Formula: (CH3O)3C6H2COOH
M.W.: 212.20
Specifications:
- Purity(%): 99.0 min
- Melting point: 169-172

- Loss on dry: 0.5% max
- Sulphate(%): 0.001
- Color NO: 100 Fan

Shikimic Acid
Make measure: The products with savageness plant as main raw material.
Action Use: Substance for anicancer Drug Raw material for making
Synthetic mass as dioxolamcin of glyoxalase depressor.
Appearance: white powder
Purity(%): 99.0 min
Ash(%): 0.5 max
Loss on dry(%): 3 max
Heavy metal(%): 0.002 max
Gallic Acid(Technical)
Make measure:The products with Galla chinensis and Tannic as main
material. After hydrolyze and acidification.
Formula: (OH)3C6H2COOH.H2O
M.W.: 188.14
Assay(%): 99.0 min
Loss on dry(%): 10.0 max
Burning remains(%): 0.1 max
Sulphate(%): 0.01 max
Chloride(%): 0.001 max
Tannic Acid test: 1.0 PPM
Cloud point: 10.0PPM
Color number: 150 Fan
Fe: 5.0PPM
Water in solubies: clarifily

Pyro-Gallic Acid
Name: chymist pure dissect pure
Formula: C6H3(OH)3
M.W.: 126.11
Burning remains(%): 0.05 0.025
Chloride(%): 0.02 0.001
Sulphate(%): 0.01 0.010
Water in solubies: acceptability

Gallic Acid(Propyl Gallate)
Make measure: (OH)3C6H2COOH.H2O+C3H7OH C10H12O5
Formula: C10H12O5
M.W.: 212.21
Content(%): 98-102
Melting point: 146-150
Arsenic(%): 0.0003 max
Heavy metals(%): 0.001 max
Loss on dry(%): 0.5 max
Burning remains(%): 0.1 max
Color number: 50 Fan
Tea Polyphenol
Tea polyphenol (Commercial name: Vita-Polyhenol), extracted and
isolated from green tea, is a new national-grade high-tech product,
containing plenty of catechins, vitamines and microelements. It
showed an excellent antioxidative effect on fat and oil-containing
foods. It can prevent from food-fading, and showed germicidal activity,
anti-senescent activity. It can also improve the stability of the
vitamines and inhibit the formation of nitrite, a carcinogen. Tea
Polyphenol is beneficial to human health, and even to cure some
diseases, such as to prevent from hyperlipemia and atherosclerosis,
to enhance body-resistance to mutation and radiation. It also showed
a good effect on daily chemical industry products(such as cosmetics).
Specification: By GB2760-86
Physical appearance: light yellow or light green powder.
Stability: stable in natural and mildly acidic condition (optimum
PH4-8). Degrades at temperature above 250 .
Unstable at the presence of ferric ion.
Solubility: It can be dissolved in warm water(40-80 ),
ethanol and mixture of waterethanol at any ratio.
Safety evaluation: It ranks nontoxic grade.
Storage: keep in cool, dry and dark place.
Peapolyphenol(%): 98 min
Catechin(%): 70 min
Caffeine(%): 1.0 max
Water content(%): 5 max
Ash(%): 0.5 max
As: 3ppm max
Pb: 10ppm max

Octgl Gallate
Spcification:
Purity(%):99.0 min
Loss on dry(%):0. 5 max
Melting Point:94-96
Burning remains(%):0.1max
Heavy metal(%):0.02 max

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