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Appearance: Powder
Throughput:1|Kilogram|Day
pd_productuse:intermediate
Delivery Time:instock
Purity:98%
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
Odor Characteristic odour
PH pH : 7.1～8.7
PH Range 7.1(brownish)-8.3(blue/green)
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
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