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Methyl Red

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methyl red

cas no. : 493-52-7

synonyms: p - dimethylaminoazobenzene - carboxylic acid

molecular formula: c15h15o2n3

molecular weight: 269. 30

property : shiny , purple crystal. Dissolved in ethanol and acetic acid, undissolved in water.

use: acid-base indicator. . Adsorption indicator.

storage require: sealed .

range of melting point : 172. 0 - 182. 0 (2c spacing)

range of ph: 4. 2 (red)-6. 2 (yellow)

solubility test in ethanol: passed

residue on ignition (sulfate): 0. 2% max.

oxidated test (bromine): passed

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