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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
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 |
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.
Not a hazardous substance or mixture.