TECHNICAL DATA SHEET
1-NAPHTHOL AR

a-Naphthol, 1-Hydroxynaphthalene

Biochem Chemopharma
Article No. 514090500 Molecular Formula C10H8O
H.S. Code 2907.1510 Molecular Weight 144.17
CAS No. 90-15-3
 

Physical Properties

Physical state at 20 °C Solid
Colour Off white to brownish
Odour Slight phenolic odor
Melting point/ Freezing point [°C] 94 - 96 °C
Flash point [°C] 125 °C
Boiling point [°C] 278 - 280 °C
Initial boiling point [°C] 278°C
Final boiling point [°C] 280 °C
Vapour pressure mm/Hg 1 mm Hg @ 940C
Vapour density 4.5
Solubility in water [% weight] Practically insoluble in water
Partition coefficient Log Pow octanol / water at 20°C 2.85
Explosion limits - upper [%] 5%
Explosion limits -lower [%] 0.80%
 

Specifications

Purity (by GC) Min 99 %
Melting point 95 - 97°C
Insolublematter in methanol Max 0.01 %
Water (HO2O) Max 0.2 %
Iron (Fe) Max 0.001 %
Chloride (Cl) Max 0.005 %
Heavy metals (as Pb) Max 0.001 %
2-Naphthol Max 0.2 %
Naphthalene Max 0.2 %
 

Safety Information and Hazard Symbols

Corrosion Exclamation Mark
Symbol GHS05, GHS07
Signal Word Danger
Hazardous Statement H302+H312-H318-H315-H335
Precaution Statement P271-P280-P302+P352-P304+P340-P305+P351+P338-P310-P403+P233-P501