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Bromophenol Blue powder Raw Materials CAS 115-39-9
Product Overview:
Bromophenol Blue powder is colorless or light rose red fine crystal. Bromophenol Blue CAS 115-39-9 is soluble in ethanol, benzene, ether and other organic solvents, and slightly soluble in water. Bromophenol Blue CAS 115-39-9 is yellow in aqueous solution and blue-purple in alkaline solution. Bromophenol Blue Raw Materials are mainly used as acid-base indicators. Their pH ranges from 3.0 to 4.6, and their color changes from yellow to green to blue-purple.
Bromophenol Blue powder Raw Materials CAS 115-39-9 Attributes
MF:C19H10Br4O5S
MW:669.96
EINECS:204-086-2
Specification:Bromophenol Blue powder
Sample:Bromophenol Blue powder
Brand:Bromophenol Blue powder
Appearance: liquid
Storage: Cool Dry Place
Brand: Globalchemical
Shelf Life: 2 Years
Test Method: HPLC
Bromophenol Blue powder Raw Materials CAS 115-39-9 Details
Uses and synthesis of Bromophenol Blue powder
Bromophenol Blue powder is colorless or light rose red fine crystal. Bromophenol Blue CAS 115-39-9 is soluble in ethanol, benzene, ether and other organic solvents, and slightly soluble in water. Bromophenol Blue CAS 115-39-9 is yellow in aqueous solution and blue-purple in alkaline solution. Bromophenol Blue Raw Materials are mainly used as acid-base indicators. Their pH ranges from 3.0 to 4.6, and their color changes from yellow to green to blue-purple.
Applications / Functions of Bromophenol Blue powder
Bromophenol Blue powder can be used as an acid-base indicator with pH3.0 (yellow) -4.6 (purple). Non-aqueous titration indicator; Adsorption indicator; Protein electrophoresis staining, virus assay, etc.
Physicochemical Property of Bromophenol Blue powder
Colorless to reddish crystal or yellowish to pale brown powder. Melting point 279℃ (decomposition). Bromophenol Blue CAS 115-39-9 is blue in alcohol, dilute lye and ammonia solutions, slightly soluble in water and ether solutions with yellow, and its sodium salt is blue in water.
Production methodprocess of Bromophenol Blue powder
Dissolve phenol red in ice acetic acid, stir with the solution of bromine dissolved in ice acetic acid, stir for a few minutes, pour into 60℃ hot water, cool to room temperature, leave overnight. Bromophenol Blue Raw Materials were obtained by filtration, washing filter cake with glacial acetic acid and benzene in turn, and drying.
