| CAS No.: | 1401-55-4 |
|---|---|
| Formula: | C76h52o46 |
| EINECS: | 215-753-2 |
| Type: | Pharmaceutical Intermediates |
| Appearance: | Powder |
| Colour: | White |
| Samples: |
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| Customization: |
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Product Name
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Tannic acid |
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Category
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Plant Extracts
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Analysis
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HPLC
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Storage
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Keep in cool and dry place, well-closed, away from moisture or direct sunlight.
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Clarifying agent astringent enhancer crud e oil deodorant aroma aid; Tannic acid can be used for tanning leather ink manufacturing paper and silk glue boiler descaling, but also can be used as a mordant, beer and wine clarifying agent rubber coagulant can be used in printing and dyeing metallurgy and medicine and other industries, tannic acid itself is very low toxicity beryllium aluminum g allium indium niobium and zirconium precipitation and weight determination of copper, iron vanadium ceriu m and cobalt determination Protein and alkaloid precipitator ammonium molybdate when titrating lead external indicator dye mordant.
Molecular formula : C76H52O46
Alias: abcolsumack19;abcoltannicacidtech; abcoltannicacidusp/kosher; acaciamollissimatannin; acid,tannic; acidetannique;castaneasativamilltannin; chestnuttannin
| Tannic acid Chemical Properties |
| Melting point | 218 °C (lit.) |
| Boiling point | 862.78°C (rough estimate) |
| density | 1.2965 (rough estimate) |
| FEMA | 3042 | TANNIC ACID (QUERCUS SPP.) |
| refractive index | 1.7040 (estimate) |
| Fp | 198°C |
| storage temp. | Storage temperature: no restrictions. |
| solubility | ethanol: soluble100mg/mL, yellow to brown |
| form | Powder/Solid |
| color | Yellow to light brown |
| PH | 3.5 (100g/l, H2O, 20°C) |
| Water Solubility | 250 g/L (20 ºC) |
| Sensitive | Air & Light Sensitive |
| Merck | 14,9052 |
| BRN | 8186396 |
| Stability: | Stable. Incompatible with metallic salts, strong oxidizing agents, iron and other heavy metals. |
The major applications of the industrial tannic acid are as follows:
1. As the raw material of gallic acid and gallic acid pyrophosphate.
2. Mordant. For fiber fixing or staining, as the basic dyes of salt.
3. Ore flotation agent. It can be used for the smelting of the rare metal, extracting the germanium from the dust or the lead-zinc, extraction of rare metals such as thorium, polonium from solution, and extraction of lead and cooper from chalcopyrite.
4. Conversion coating. It can be used for the surface anti-corrosion of aluminum and its alloy plate, steel, copper, and zinc.
5. Food additives such as food antioxidants, beverage clarifying agent, advanced ink and the printing ink.
6. The thinner of drilling mud.
7. It can be used as a kind of synergist. It can be applied to the synthesis of 2, 4-Diamino-5-trimethoprimam, referred as TMP or sulfa synergist.
8. Deodorant. It can be used in refrigerators, warehouse.
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