散户多了主力就不拉吗-股市新闻实时播报-【东方资本】,国内炒股软件哪个最好 知乎,股票开通融资融券有什么要求吗,股票配资app送体验金是真的吗

SZSE：002741
Chemical Reagents
2-Naphthol?COA Report
  • CAS No.：135-19-3
  • Molecular weight：144.17
  • Molecular formula：C10H8O
  • UN Code：3307
  • EC No.：205-182-7
  • HS-No：29071590
Information
Specification category：
Product No. Product name specifications
1.17504.010 2-Naphthol AR100g
Characteristic： Appearance and properties:white to pale red flaky crystals or powder,with phenol flavor.
Relative density(water=1)?:1.22
Melting point(℃):121.6
Boiling point(℃):285
Concentration:pure product
Solubility:Slightly soluble in water,soluble in alcohol, ether, chloroform, glycerol, oils, lye.
Technical indicators：
Item AR CP
Assay ≤99.5% －
Melting point, ℃ 121～123 120～123
Solubility in ethanol Pass Pass
Residue on ignition(as SO4) ≤0.05% ≤0.05%
Free acid Pass Pass
Free of naphthaline test Pass Pass
Free of 1-naphthaline test Pass Pass
Hazard characteristics：

IATA-DRG UN 3077 ENVIRONMENTALLLY HAZARDOUS SUBSTANCE,SOLID,N.O.S.(2-NAPHTHOL),9,Ⅲ

Related Products

Copyright ? Guangdong?Guanghua?Sci-Tech?Co.,?Ltd. GuangDong ICP No. 14033791-1