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Bromocresol Green IND Grade Reagent

Cas Number:76-60-8
Formula: C21H14Br4O5S
Molar Mass:698.01
EC Number:200-972-8

Quantity:
  • IND
  • LABOR
  • 405433125

Bromocresol Green IND Grade Reagent


Cas Number:76-60-8

Formula: C21H14Br4O5S

Molar Mass:698.01

EC Number:200-972-8


Properties:

White or yellowish crystals. It is soluble in ethanol, ether and ethyl acetate and benzene, slightly soluble in water. The melting point is 218 ~ 219 ° C. The maximum absorption wavelength is 423 nm.


Usage:

Acid-base indicator, pH : 3.8 (yellow-green) ~ 5.4 (blue).


Packing:

500g/25kg





Item of Analysis

Standard

pH discoloration domain

3.8(Yellow green)~5.4(Blue)

Greatest absorption wavelength,λ1( pH3.8)/nm

440~445

Greatest absorption wavelength,λ2(pH5.4)/nm

615~618

Mass absorption coefficient,α11,pH3.8 dry sample),L/(cm·g)

24~28

Mass absorption coefficient,α22,pH4.5 dry sample),L/(cm·g)


53~58

Solubility in ethanol

to pass test

Loss on drying,%

3.0 max

Residue on ignition(as SO4),%

0.25 max



Not a hazardous substance or mixture.


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