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alpha-Naphtholphthalein Structure

alpha-Naphtholphthalein

Chemical Properties

Melting point 238-240 °C(lit.)
Boiling point 496.21°C (rough estimate)
Density  1.1532 (rough estimate)
vapor density  14.44 (vs air)
refractive index  1.6400 (estimate)
storage temp.  Store below +30°C.
solubility  Solubility Practically insoluble in water; soluble in ethanol
pka 8.0, 8.2, 8.5(at 25℃)
form  Powder
color  Pink to beige or brown
PH Range 7.1(brownish)-8.3(blue/green)
PH pH : 7.1~8.7
Odor Characteristic odour
Water Solubility  Soluble in ethanol. Insoluble in water.
λmax 648nm
Merck  14,6389
BRN  97816
InChIKey HQHBAGKIEAOSNM-UHFFFAOYSA-N
CAS DataBase Reference 596-01-0(CAS DataBase Reference)

Safety Information

Hazard Codes  Xi
Risk Statements  36/37/38
Safety Statements  26-36
WGK Germany  3
HS Code  32041900

MSDS

Usage And Synthesis

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