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| Product Name: |
Tannic Acid,USP Grade
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| Specifications |
86% |
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Tannic Acid USP28
Synonyms: Tannin, Gallotannic Acid
Molecular Formula: C76H52O46 CAS # 1401-55-4
Molecular Weight: 1701.18 HS Code: 3201 9090
ITEM UNIT SPECIFICATIONS
Appearance Light yellow to light brown powder
Identification A: To 2mLof a solution (1in 10)add 1drop of ferric chloride TS:a bluish black color or precipitate results.
B: To a solution (1in 10)add an equal volume of gelatin solution (1in 100):a precipitate is formed.
Content % 86 min
Gallic Acid % 7 max
Loss of drying £šUPS731£© % 12 max
Residue on ignition(USP281) % 1.0 max
Arsenic PPM 3 max
Heavy Metals (As Pb) % 0.004 max
Tree gum or dextrin test Dissolve 2g in 10mLof hot water:the solution is not more than slightly turbid.Cool,filter,and divide the filtrate into two equal portions.To one portion add 10mLof alcohol:no turbidity is produced
Resinous substances To a portion of the filtrate obtained in the test for Gum or dextrinadd 10mLof water:no turbidity is produced
Organic volatile impurities(USP467) meets the requirements
Application: For the preparation of antibiotics, treating tinea, clearing toxic material and stopping dysentery, and also for synthesizing sulphanilamide synergist.
Packing: In 25 kg net fiber drums with poly liner.
Storage Recommendations: To be stored in cool & dry place (<25 ℃). Preserve in tight containers, protected from light.
Shelf Life: 24 months under above-mentioned conditions and in unopened container.
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| Company: |
Hunan Shineway Enterprise Co.,Ltd
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| Contact: |
Ms. cindy Tan |
| Address: |
4/F,472#,Yuanda 1st Rd,Changsha,Hunan,China |
| Postcode: |
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| Tel: |
86 731 4729032 |
| Fax: |
86 731 4747462 |
| E-mail: |
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