Product or Service

Tannic acid

Profile:Manufacturer - Producer|Ref:PSL176403YH | Country: China | Currency: | Export: No


Currency :
incoterm : fob
country : China
DESCRIPTION

Product name:Tannic acid
CAS NO:1401-55-4
Assay: 99%min
Appearance:Light yellowish to brownish powder, soluble in 1 share Of water or ethanol; Soluble in acetone;
Almost insoluble in chloroform or diethyl ether. Synonym: Tannin, Gallotannic acid
M.F.&M.W.: C76H52O46 = 701.18
1. Industrial grade
Item First-grade product
Loss on drying, %≤ : 9.0
Water insoluble, %≤ : 0.3
Solution color≤ : 2.0
Content(dry weight), ≥ : 81.0
Application: Widely used in extract of Ge, manufacture of "lro ink", anti-corrosion of metal, treatment of slurry in petroleum well, raw materials of pharmaceutical industry.
Package: In plastic woven bags of 25kg net each.
2. Electronicsl grade
Characteristic: Light yellowish to light brownish powder, soluble in 1 share of water or ethanol, soluble in acetone,
insoluble in chloroform or ethyl ether
Content of Tannic Acid (dry base), %: ≥ 99.5
Chloride, ppm: ≤ 4.4
Pb, ppm: ≤ 2.0
Fe, ppm: ≤ 2.0
Sulfate, ppm: ≤ 3.0
Moisture, % : ≤ 10.0

Application: Additive materials for fine chemistry and electronics field.

Storage: Airproof and protect from light

Package: Net weight 25kg per drum
3. Pharmaceutical grade
Appearance: Light yellowish to light brownish powder, soluble in 1 share of water or ethanol, soluble in acetone,
insoluble in chloroform or ethyl ether.
Content of tannic acid: ≥ 86.0%
Loss on drying: ≤ 9.0%
Water insoluble substance: ≤ 0.60%
Color: ≤ 1.0
Ignited residue: ≤ 0.20%
Gallic acid: ≤ 7.0
Application: Tannic acid for medicine has the antiseptic, enzyme-eliminating and convergent effects. Applied as antibiotics to treating tinea, eliminating toxic substances and
stopping diarrhea etc.

Package: 25kg/drum.
4. Food grade
Appearance: Light yellowish to light brownish powder, soluble in 1 share of water or ethanol, soluble in acetone,
insoluble in chloroform or ethyl ether.
Main specifications:
Appearance: Ivory, no odour
Heavy metal, %: ≤ 0.002
Loss on drying, %: ≤ 9.0
As, %: ≤ 0.0002
Ignited residue, %: ≤ 1.0
Content, %: ≥ 86
Package: 25kg/drum

Information Stock : Product in stock

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