o-CRESOLPHTHALEIN Indicator grade

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Article No.
03010
Grade
Indicator grade
Purity
CAS No.
596-27-0
Molecular Formula
C22H18O4
Molecular Weight
346.39
H.S. Code
2934.9900
Shelf Life
60 Months
MSDS
 

 

Physical Properties

Physical state at 20 °C
Solid
Colour
Light brown
Melting point/ Freezing point [°C]
219 - 221 °C

Packings

  • 1GBA000015

    5 g (00005)

  • 1PW1200060

    25 g (00025)

  • 1PW1201000

    500 g (00500)

 

Specifications

Appearance White to light yellow and faint beige to light beige and faint brown to light brown powder
pH 8.2-9.8 Colourless to violet red
Absorption maxima in 0.1 N NaOH 565 - 569 nm
Specific absorptivity A1%/1cm (at λmax) Min 1500
Insoluble matter in ethanol Passes test
Loss on drying (at 135°C) Max 0.5%
Sulphated ash Max 0.5%

Revision Date : 03-Mar-2021
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