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Thymol Blue IND Grade Reagent

Cas Number:76-61-9
Formula: C27H30O5S
Molar Mass:466.6
EC Number:200-973-3

Quantity:
  • IND
  • LABOR
  • 404433125

Thymol Blue IND Grade Reagent


Cas Number:76-61-9

Formula: C27H30O5S

Molar Mass:466.6

EC Number:200-973-3


Properties:

Brownish green crystalline powder with bad smell. It is soluble in ethanol, yellow, dilute alkali, and insoluble in water. The melting point is 221 ~ 224 ° C (decomposition). The maximum absorption wavelength is 594 (376) nm. The ammonium salt is soluble in water, and the aqueous solution is light brownish yellow, which is called water-soluble thymol blue. Its sodium salt is brown powder and soluble in water.


Usage:

Acid-base indicator, the pH is 1.2 (red) ~ 2.8 (yellow), 8.0 (yellow) ~ 9.6 (blue).


Packing:

500g/25kg





Item of Analysis

Standard

PH discoloration domain

1.2(Red)~ 2.8(Yellow)

8.0(Yellow)~ 9.6(Blue)

Solubility in ethanol

to pass test

Residue on ignition(as SO4),%

≤0.3 max

Mass absorption coefficient,α/(L/cm·g)

71.0 min


Not a hazardous substance or mixture.


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