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Lab Chemicals
pH Indicator (Solid)
THYMOL BLUE INDICATOR
THYMOL BLUE INDICATOR AR
Thymolsulfonphthalein
Article No.
06306
Grade
AR
Purity
CAS No.
76-61-9
Molecular Formula
C
2
7
H
3
0
O
5
S
Molecular Weight
466.60
H.S. Code
2934.9990
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
Brownish green powder
Odour
Characteristic odour
Melting point/ Freezing point [°C]
221 - 224 °C
Density [g/cm3]
0.979
Solubility in water [% weight]
Soluble in water
Packings
5 g
(00005)
25 g
(00025)
Specifications
Appearance
Dark green to dark brown powder
Acidic range pH 1.2-2.8
Red to yellow
Alkaline range pH 8.0-9.6
Yellow to blue
Loss on drying
Max 10%
Dye content (by spectrophotometry)
Min. 95.0%
Revision Date :
05-Jun-2023