CAS:125-20-2
MF:C28H30O4
EINECS:204-729-7
Purity:99%
Other Names:Thymolphthalein
what is of Thymolphthalein with cas 125-20-2?
Thymolphthalien is an acid-base indicator which is colourless in acidic form and deep blue in basic form. Acidic form retains hydrogen on each hydroxyl group. It is suitable in preparing disappearing ink.
Specification
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Melting point
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251-253 °C(lit.)
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Boiling point
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504.79°C (rough estimate)
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density
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0.92 g/mL at 25 °C
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refractive index
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1.6400 (estimate)
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Fp
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74 °F
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storage temp.
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no restrictions.
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solubility
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ethanol: clarity passes test
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form
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Low Melting Mass
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pka
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9.70, 10.0(at 25℃)
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Specific Gravity
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0.92
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Usage
As pH indicator: colorless 9.3 to blue 10.5. Also as reagent for blood after decolorizing the alkaline solution by boiling with zinc dust.
Packing
25kgs/drum, 9tons/20’container
Synonym
3,3-bis(4-hydroxy-2-methyl-5-(1-methylethyl)phenyl)-1(3H)-Isobenzofuranone;3,3-bis[4-hydroxy-2-methyl-5-(1-methylethyl)phenyl]-1(3h)-isobenzofuranon;Thymolphthalein,foranalysisACS;Thymolphthalein,indicator,pure
