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Lab Chemicals
pH Indicator (Solid)
THYMOLPHTHALEIN INDICATOR
THYMOLPHTHALEIN INDICATOR AR
5',5''-Diisopropyl-2',2''-dimethylphenolphthalein
Article No.
06309
Grade
AR
Purity
CAS No.
125-20-2
Molecular Formula
C
2
8
H
3
0
O
4
Molecular Weight
430.55
H.S. Code
2932.2090
Shelf Life
60 Months
MSDS
DE
EN
FR
KO
PT
ES
TH
TR
Certificate of Analysis (COAs)
Physical Properties
Physical state at 20 °C
Solid
Colour
White powder
Melting point/ Freezing point [°C]
251 - 253 °C
Solubility in water [% weight]
Insoluble in water
Partition coefficient Log Pow octanol / water at 20°C
7.06
Packings
5 g
(00005)
25 g
(00025)
1000 g
(01000)
Specifications
Appearance
White powder
Infrared spectrum
Conforms
Visual transition interval
from pH 8.8 (Colorless) to pH 10.5 (blue)
Absorption maxima
592 - 596 nm
Safety Information and Hazard Symbols
Safety Statement: 22-24/25
Revision Date :
08-Jul-2021