Categories: Stains Indicator Reagents-69
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Product Short Description: THYMOL BLUE (ACS GRADE)
Product Description:

THYMOL BLUE ACS GRADE excellent quality manufacturer,exporter and supplier. Thymol Blue is a pH indicator, which is yellow/orange at low pH and blue in color at high pH.

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C.A.S. No. 76-61-9
M.F. C27H30O5S
M.W. 466.60gm/mole

Specifications:

Dye Content (by Spectrophotometry) >95%
Solubility 0.1 % (95% EtOH) Clear solution
Transition range pH7.8-9.5
  Yellow-Blue
Absorption Maximum (pH 7.8) ?1max 431-436nm
Absorption maximum (pH 9.5) ?2max 594-598nm
Absorptivity (A1%/1cm at pH 7.8 at ?1max) 200-300
Absorptivity (A1%/1cm at pH 9.5 at ?2max) 450-550
Loss on drying (110°C) <3%
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