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CAS:125-20-2
MF:C28H30O4
EINECS:204-729-7
Purezza: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.
Specifica
|
Punto di fusione
|
251-253 °C(lit.)
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|
Punto di ebollizione
|
504.79°C (rough estimate)
|
|
densità
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0,92 g/mL a 25 °C
|
|
indice di rifrazione
|
1.6400 (estimate)
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|
Fp
|
74 °F
|
|
temperatura di conservazione.
|
no restrictions.
|
|
solubilità
|
ethanol: clarity passes test
|
|
modulo
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Low Melting Mass
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|
pka
|
9.70, 10.0(at 25℃)
|
|
Peso Specifico
|
0.92
|
Utilizzo
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.
Imballaggio
25kgs/drum, 9tons/20'container
