NL 
EN 
ZH 
DE 
ES 
KO 
PT 
FR 
TH 
AR 
IT 
VI 
RU 
CAS:125-20-2
MF:C28H30O4
EINECS:204-729-7
Zuiverheid: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.
Specificatie
|
Smeltpunt
|
251-253 °C(lit.)
|
|
Boiling point
|
504.79°C (rough estimate)
|
|
density
|
0.92 g/mL bij 25 °C
|
|
refractive index
|
1.6400 (schatting)
|
|
Fp
|
74 °F
|
|
storage temp.
|
geen beperkingen.
|
|
solubility
|
ethanol: clarity passes test
|
|
form
|
Low Melting Mass
|
|
pka
|
9.70, 10.0(bij 25℃)
|
|
Soortelijk Gewicht
|
0.92
|
Gebruik
Als pH indicator: kleurloos 9.3 blauw 10.5. Ook als reagens voor bloed na decolorizing de alkalische oplossing door koken met zinkstof.
Verpakking
25kgs/trommel, 9tons/20'container
Synoniem
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
