无码日韩精品一区二区免费暖暖_日韩人妻无码精品久久_狂躁美女大bbbbbb视频u_亚洲精品一区二区三区在线观看_自拍偷自拍亚洲精品播放

SZSE:002741
Chemical Reagents
PyridineCOA Report
  • CAS No.:110-86-1
  • Molecular weight:79.10
  • Molecular formula:C5H5N
  • UN Code:1282
  • EC No.:203-809-9
  • HS-No:29333100
Information
Specification category:
Product No. Product name specifications
1.21102.023 Pyridine AR500mL
1.21102.033 Pyridine AR2.5L
Characteristic: Appearance and properties: colorless or slightly yellow liquid with odor.
Relative density: 0.98
Relative vapor density: 2.73
Melting point(℃): -42
Boiling point(℃): 115.3
Concentration: Pure
Saturated vapor pressure: 1.33/13.2 ℃
Solubility: soluble in water, alcohol, ether, etc. Most organic solvents.
Technical indicators:
Item AR CP
Assay (C5H4N) ≥99.5% ≥99.0%
Solubility in water Pass Pass
Evaporation residue ≤0.002% ≤0.004%
Water(H2O) ≤0.1% ≤0.2%
Chloride(Cl) ≤0.0005% ≤0.001%
Sulfate(SO4) ≤0.001% ≤0.002%
Ammonia(NH3) ≤0.002% ≤0.004%
Copper(Cu) Pass Pass
Substances reducing potassium permanganate Pass Pass
Hazard characteristics:

IATA-DGR UN 1282 PYRIDINE,3,II

Related Products

Copyright ? Guangdong?Guanghua?Sci-Tech?Co.,?Ltd. GuangDong ICP No. 14033791-1
久久精品中文字幕| 国产精品人妻一区免费看8c0m| 一区二区三区乱码在线 | 欧洲| 国产精品天干天干综合网| 国产真实乱对白精彩久久老熟妇女| 欧美性猛交xxx嘿人猛交| 成人小说亚洲一区二区三区| 久久久久久午夜成人影院| 亚洲av无码av吞精久久| 久久久久久久性潮| 搡老女人老妇女老熟妇| 无码av天堂一区二区三区| 真人二十三式性视频(动)| 亚欧无线一线二线三线区别| 免费ā片在线观看| 国产综合久久一区二区| 好满射太多了装不下了真人| 肉岳疯狂69式激情的高潮| 久久无码av三级| 亚洲一区二区三区国产精品无码 | 99蜜桃在线观看免费视频网站| 国产欧美日韩专区发布| 青草内射中出高潮| 欧美日韩亚洲国产精品| 国外人妻视频免费播放| 99国产欧美另类久久久精品| 欧美高清精品一区二区| 日本a级特黄特黄刺激大片| 日本熟妇乱人伦xxxx| 性刺激的欧美三级视频中文字幕 | 久久精品国产亚洲av麻豆小说| 亚洲欧美日本韩国| 国产欧美精品aaaaaa片| 久久偷看各类wc女厕嘘嘘| 高h小月被几个老头调教| 无码国产精品一区二区色情男同| 开心五月婷婷激情综合| 国产三级精品三级| 美女裸体十八禁免费网站| 97se狠狠狠狠狼鲁亚洲综合色| 亚洲国产高清在线观看视频|