Bromocresol Purple BS Grade Reagent
Yellowish fine crystals. It is soluble in ethanol and dilute alkali solution, almost insoluble in water. The melting point is 241 ~ 242 ° C. Irritating.
Acid-base indicator, the pH color change range is: 5.2 (yellow) ~ 6.8 (purple). Adsorption indicator. Amino acid chromatography internal standard. The thiocyanate is titrated by a silver salt method. The serum protein is precipitated by spectrophotometry.
Item of Analysis
pH discoloration domain
Solubicity in NaOH
to pass test
Loss on drying,%
Residue on ignition(as SO4),%
Not a hazardous substance or mixture.