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1-Naphthol 99% AR
a-Naphthol, 1-Hydroxynaphthalene

Product Code.
01778
Grade
Purity
99%
CAS No.
90-15-3
Molecular Formula
C10H8O
Molecular Weight
144.17
H.S.Code
2907.15100
Shelf Life
36 Months

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%

Packaging

Specification

Appearance
Off-white to brownish flakes
Assay
Min 99%
Melting point
95 - 97 deg C
Insoluble matter in methanol
Max 0.01%
Iron (Fe)
Max 0.001%
Chloride (Cl)
Max 0.005%
Heavy metal (as Pb)
Max 0.001%
2-Naphthol
Max 0.2%
Naphthalene
Max 0.2%
Water (H2O)
Max 0.2%
Sulphated ash
Max 0.01%

Safety Information and Hazard Symbols

Symbol: GHS05, GHS07
Signal Word: Danger
UN No.: 2811
IMCO Class No.: 6.1
Packing Group: III
Hazardous Statement: H302-H312-H315-H318-H335
Precaution Statement: P261-P280-P305 + P351 + P338