Gallotannic acid / tannic acid CAS NO. 1401-55-4
Gallotannic acid / tannic acid CAS NO. 1401-55-4 Product Description
Product name: tannic acid
synonyms: tannic acid, tannin, gallnut tannic acid
Molecular formula: c76h52o46
Molecular weight: 1701.18
Model: medicinal tannic acid, fuel tannic acid, industrial tannic acid and other types of tannic acid
Gallotannic acid / tannic acid CAS NO. 1401-55-4 Properties
pale yellow or light brown amorphous powder; exposed to air oxidation, color deepening, odorless, astringent. Soluble in water, ethanol, acetone, ethyl acetate.
Gallotannic acid / tannic acid CAS NO. 1401-55-4 Specification
Specification of tannic acid: the product conforms to the national standard gb5308-85.
Quality specification:
tannic acid content: ≥ 81%
dry weightlessness: ≤ 9.0%
insoluble matter: ≤ 0.6%
total color: ≤ 2.0
Gallotannic acid / tannic acid CAS NO. 1401-55-4 Usage
Main uses of tannic acid:
raw materials for the preparation of pharmaceutical astric acid, pyruvic acid and sulfonamides. Gallic acid and pyroGallic acid can be prepared in chemical production. Used as a mud treatment agent in the petroleum industry. In addition, it can be used to produce leather tanning agent, mordant, rubber coagulant, protein agent, alkaloid precipitator, mineral processing inhibitor, alcohol clarifier, germanium extraction and blue-black ink preparation.
Gallotannic acid / tannic acid CAS NO. 1401-55-4 Storage
Storage of tannic acid:
moisture-proof and light-proof, sealed storage.
Gallotannic acid / tannic acid CAS NO. 1401-55-4 Packaging
Packaging of tannic acid:
Outer paper plastic composite bag, each bag net weight 25 kg.
Property: A yellowish to brownish powder, odour characteristic; Taste strongly astringent. Soluble in 1 part of water or alcohol; Soluble in acetone; Almost insoluble in chloroform or ether.
Uses: The medical tannin for is anti-bacterial, anti-enzymatic and astringent functions, It is used as an ingredient for antibiotics, guitinea drugs, detoxicants and antidysenterics and a symerist for synhetic sulphanilamide.
Storage: Tannic acid should be kept in a well-closed container.
| ITEM |
STANDARD |
| Purity |
86% min |
| As |
0.0003% max |
| Pb |
0.001% max |
| Loss on dry |
10% |
| Resin test |
Pass |
| Residue on ignition |
0.15% max |
| Gallic acid |
7% max |
| Product Name: |
Tannic acid |
| Synonyms: |
Tannic acid, AR;Tannic acid 1401-55-4 Gallotannin;TANNIC ACID PWD;Gallotannic acid 1401-55-4 Tannic acid;Tannic acid Source: Chinese natural gall nuts;Tannic acid tested according to Ph.Eur.;Tannic acid Vetec(TM) reagent grade;Tannic Acid(Pharmaceutical/Tech/Dyes/Food Grade) |
| CAS: |
1401-55-4 |
| MF: |
C76H52O46 |
| MW: |
1701.2 |
| EINECS: |
215-753-2 |
| Product Categories: |
Inhibitors;Catechins & Tannins;Plant Extract;Food additive and acidulant |
| Mol File: |
1401-55-4.mol |
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| |
| 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. |
| InChIKey |
LRBQNJMCXXYXIU-PPKXGCFTSA-N |
| EPA Substance Registry System |
Tannic acid (1401-55-4) |
| Hazard Codes |
Xi,Xn |
| Risk Statements |
40-62-63-68-36/37/38-52/53 |
| Safety Statements |
24/25-36-26-36/37/39-22-61 |
| WGK Germany |
2 |
| RTECS |
WW5075000 |
| Autoignition Temperature |
980 °F |
| TSCA |
Yes |
| HS Code |
32019090 |
| Hazardous Substances Data |
1401-55-4(Hazardous Substances Data) |
| Toxicity |
LD50 oral in rabbit: 5gm/kg |
| Provider |
Language |
| Glycerite |
English |
Audited Supplier 
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