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Bromocresol Purple BS Grade Reagent

Cas Number:115-40-2
Formula: C21H16Br2O5S
Molar Mass:540.22
EC Number:204-087-8

Quantity:
  • BS
  • LABOR
  • 400932123

Bromocresol Purple BS Grade Reagent


Cas Number:115-40-2

Formula: C21H16Br2O5S

Molar Mass:540.22

EC Number:204-087-8


Physicochemical properties:

Yellowish fine crystals. It is soluble in ethanol and dilute alkali solution, almost insoluble in water. The melting point is 241 ~ 242 ° C. Irritating.


Usage:

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.


Packing:

500g/25kg





Item of Analysis

Standard

pH discoloration domain

5.2(Yellow)~6.8(Purple)

Solubicity in NaOH

to pass test

Loss on drying,%

0.5 max

Residue on ignition(as SO4),%

0.1 max



Not a hazardous substance or mixture.


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