403040

Tannic acid

ACS reagent

• Sinônimo(s): Gallotannin, Tannin
• Fórmula empírica (Notação de Hill): C₇₆H₅₂O₄₆
• Número CAS: 1401-55-4
• Peso molecular: 1701.20
• Beilstein: 8186396
• Número CE: 215-753-2
• Número MDL: MFCD00066397
• Código UNSPSC: 12352100
• ID de substância PubChem: 24865158
• NACRES: NA.21

Propriedades

• grau: ACS reagent
• Nível de qualidade: 200
• temperatura de autoignição: 980 °F
• resíduo de ignição: ≤0.5%
• perda: ≤12.0% loss on drying, 105°C
• pf: 218 °C (lit.)
• traços de cátion: Zn: ≤0.005%; heavy metals: ≤0.003%
• cadeia de caracteres SMILES: Oc1cc(cc(O)c1O)C(=O)Oc2cc(cc(O)c2O)C(=O)OC[C@H]3O[C@@H](OC(=O)c4cc(O)c(O)c(OC(=O)c5cc(O)c(O)c(O)c5)c4)[C@H](OC(=O)c6cc(O)c(O)c(OC(=O)c7cc(O)c(O)c(O)c7)c6)[C@@H](OC(=O)c8cc(O)c(O)c(OC(=O)c9cc(O)c(O)c(O)c9)c8)[C@@H]3OC(=O)c%10cc(O)c(O)c(OC(=O)c%11cc(O)c(O)c(O)c%11)c%10
• InChI: 1S/C76H52O46/c77-32-1-22(2-33(78)53(32)92)67(103)113-47-16-27(11-42(87)58(47)97)66(102)112-21-52-63(119-72(108)28-12-43(88)59(98)48(17-28)114-68(104)23-3-34(79)54(93)35(80)4-23)64(120-73(109)29-13-44(89)60(99)49(18-29)115-69(105)24-5-36(81)55(94)37(82)6-24)65(121-74(110)30-14-45(90)61(100)50(19-30)116-70(106)25-7-38(83)56(95)39(84)8-25)76(118-52)122-75(111)31-15-46(91)62(101)51(20-31)117-71(107)26-9-40(85)57(96)41(86)10-26/h1-20,52,63-65,76-101H,21H2/t52-,63-,64+,65-,76+/m1/s1
• chave InChI: LRBQNJMCXXYXIU-PPKXGCFTSA-N

Descrição

Descrição geral

Tannic acid (TA) is a natural, non-toxic organic acid with corrosion inhibitive property for metals and alloys. A chemiluminescence (CL) system of KIO₄ (potassium periodate)–H₂O₂ (hydrogen peroxide)–Tween40 has been employed in the detection of tannic acid in industrial wastewater. Tannic acid hydrolyzes to form mainly glucose and gallic acid. Its astringent property is due to the presence of polyphenolic groups.

Aplicação

Tannic acid may be used in the following processes:

• Synthesis of ferric tannate complexes by reacting with metallic iron.
• As a protein deproteinizing agent in genomic and plasmid DNAs preparation.
• As a reductant in the synthesis of metal nano particles.

Informações de segurança

• Código de classe de armazenamento: 11 - Combustible Solids
• Classe de risco de água (WGK): WGK 2
• Ponto de fulgor (°F): 390.2 °F
• Ponto de fulgor (°C): 199 °C
• Equipamento de proteção individual: Eyeshields, Gloves, type N95 (US)