人人湿人人乐99,久久久久久久久久网站,成人 国产 另类,日韩国产白浆露出,一人香蕉尹人一线网站,亚洲第一在线一区,青青草视频在线1区,色播插久久,亚洲精品五码视频

SZSE：002741
Chemical Reagents
  • CAS No.：57-13-6
  • Molecular weight：60.06
  • Aliases：carbamide；ureophil
  • Molecular formula：CH4N2O
  • EC No.：200-315-5
  • HS-No：31021010
Information
Specification category：
Product No. Product name specifications
1.20601.010 Urea AR500g
1.20601.020 Urea AR5kg×6
1.20601.030 Urea CP500g
1.20601.040 Urea CP25kg
1.20601.050 Urea AR25kg
1.20601.090 Urea AR4200g/Sack
1.20601.100 Urea AR25kg
1.20601.100 Urea AR25KG
1.20601.110 Urea AR25kg
Characteristic： Appearance and properties: white crystal or powder, the smell of ammonia.
Relative density: 1.335
Melting point(℃): 132.7
Boiling point(℃): (decomposition)
Solubility: soluble in water, methanol, ethanol, slightly soluble in ether, chloroform, benzene.
Heat of combustion (kJ / mol): meaningless
Technical indicators：
Item AR CP
Assay (H2NCONH2) ≥99.0% ≥99.0%
Clarity of solution ≤2 ≤4
Insoluble matter in water ≤0.005% ≤0.02%
Residue on ignition(as SO4) ≤0.01% ≤0.02%
Chloride(Cl) ≤0.0003% ≤0.001%
Sulfate(SO4) ≤0.001% ≤0.005%
Ammonia(NH3) ≤0.005% ≤0.005%
Iron(Fe) ≤0.0002% ≤0.0005%
Heavy metals(as Pb) ≤0.0002% ≤0.0005%
Biuret(C2H5N3O2) ≤0.2% ≤0.4%
Related Products

Copyright ? Guangdong?Guanghua?Sci-Tech?Co.,?Ltd. GuangDong ICP No. 14033791-1
翼城县| 老河口市| 景德镇市| 科尔| 上思县| 天镇县| 若尔盖县| 革吉县| 睢宁县| 泰顺县| 四子王旗| 翁源县| 莒南县| 佛山市| 嘉祥县| 兴安县| 固镇县| 蒙城县| 阿勒泰市| 栾城县| 宁陵县| 屏边| 鄢陵县| 朝阳县| 安宁市| 北宁市| 常德市| 建阳市| 九龙城区| 安多县| 桓台县| 漯河市| 聂荣县| 潼关县| 麟游县| 武隆县| 武胜县| 读书| 易门县| 成武县| 乡宁县|