中国品牌·金沙9001w(以诚为本)-最新GREENMAX

SZSE:002741
Chemical Reagents
Naphthalene COA Report
  • CAS No.: 91-20-3
  • Molecular weight:128.16
  • Aliases:Acene
  • Molecular formula:C10H8
  • UN Code:1334
  • EC No.:202-049-5
  • HS-No:29029000
Information
Specification category:
Product No. Product name specifications
1.15801.014 Naphthalene AR250g
Characteristic: Appearance and properties:volatile white crystals,with a mild aromatic odor, crude naphthalene with coal tar odor.
Relative density(water=1):1.16
Relative vapor density(air=1): 4.42
Melting point(℃):80.1
Boiling point(℃):217.9
Concentration:pure
Saturated vapor pressure:0.13(52.6℃)
Solubility:insoluble in water,soluble in ethanol,ether,benzene.
Heat of combustion (kJ/mol): 5148.9
Critical temperature (℃): 457.2
Critical pressure (Mpa):4.05
Hazard characteristics:

IATA-DGR UN 1334 NAPHTHALENE,REFINED,4.1,Ⅲ

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