NILE CHEMICALS

o - CRESOLPHTHALEIN

SPECIFICATION SHEET

PRODUCT

o - CRESOLPHTHALEIN

CAS NO

596 - 27- 0

TESTS

RESULTS

Appearance

White Powder

Solubility 0.1% (Ethanol)

Clear Solution

Transition range

pH 8.2 - 9.8

Colourless - Violet red

Absorptivity 1%/ 1cm (in 0.1N NaOH)

at l max 567.0nm

1644

Loss on drying at ( 110^OC )

0.51%