大地资源第三页高清在线观看免费,大地影视中文资源6,大地二资源在线高清免费,大地资源高清在线视频,大地二资源在线高清国语版,大地第二资源在线播放免费观看

SZSE:002741
Chemical Reagents
1-(2-Pyridylazo)-2-naphthol?COA Report
  • CAS No.:85-85-8
  • Molecular weight:249.27
  • Molecular formula:C15H11N3O
  • EC No.:201-637-9
  • HS-No:29333999
Information
Specification category:
Product No. Product name specifications
1.17595.010 1-(2-Pyridylazo)-2-naphthol AR5g
Characteristic: Appearance and properties:orange crystalline powder.
Melting point(℃):138~140
Solubility:soluble in alcohol,ether,alkali solution and organic solvents,insoluble in water.
Technical indicators:
Item AR
Effective spectrophotometric determination ≤90%
Sensitivity to copper Pass
Melting point,℃ 138~142
Solubility in ethanol Pass
Residue on ignition(as SO4) ≤0.1%
Related Products

Copyright ? Guangdong?Guanghua?Sci-Tech?Co.,?Ltd. GuangDong ICP No. 14033791-1
欢迎光临: 北宁市| 五莲县| 崇左市| 阳高县| 淮滨县| 灵台县| 遂溪县| 包头市| 福建省| 会理县| 延边| 大悟县| 从江县| 澜沧| 孙吴县| 永定县| 泰安市| 阿克陶县| 吴江市| 龙州县| 雅江县| 观塘区| 青阳县| 尼玛县| 通州区| 页游| 阜新| 凤台县| 偏关县| 八宿县| 江永县| 垦利县| 灵璧县| 上犹县| 双城市| 汾阳市| 蓬安县| 肥东县| 盐边县| 黄冈市| 江华|