亚洲成人av_不卡av片_人妻巨大乳hd免费看_黄色小说内容_三级视频片_av网站网址_为爱搞激情_色九区_性姿势伦理未删减版_www狠狠_秋葵视频成人_久操热久操_日本网站在线看_久草网在线_狠狠做

SZSE:002741
Chemical Reagents
Chromium(Ⅲ) potassium sulfate dodecahydrate COA Report
  • CAS No.:7788-99-0
  • Molecular weight:499.40
  • Aliases:Alum chrome
  • Molecular formula:KCr(SO4)2·12H2O
  • EC No.:233-401-6
  • HS-No:28333000
Information
Specification category:
Product No. Product name specifications
1.01774.010 Chromium potassium sulfate dodecahydrate AR500g
1.01774.020 Chromium potassium sulfate dodecahydrate CP500g
1.01774.030 Chromium potassium sulfate dodecahydrate AR25kg
1.01774.040 Chromium potassium sulfate dodecahydrate CP25kg
1.01774.040 Chromium potassium sulfate dodecahydrate CP25kg
Characteristic: Appearance and properties: Deep violet,odorless solid.
pH value: 3(50g/L H2O,20℃)
Relative density: 1.83(water=1)(20℃)
Melting point(℃): 89
Concentration: Pure
Solubility: Soluble in water (4eq. cold water or 2eq. hot water) and dilute acid,insoluble in alcohol.
Technical indicators:
Item AR CP
Assay[KCr(SO4)·12H2O] ≥99.5% ≥99.0%
Insoluble matter in water ≤0.005% ≤0.01%
Chloride(Cl) ≤0.002% ≤0.005%
Ammonium salt(NH4) ≤0.01% ≤0.03%
Aluminum(Al) ≤0.02% ≤0.05%
Iron(Fe) ≤0.005% ≤0.02%
Heavy metals(as Pb) ≤0.002% ≤0.01%
Related Products

Copyright ? Guangdong?Guanghua?Sci-Tech?Co.,?Ltd. GuangDong ICP No. 14033791-1
主站蜘蛛池模板: 闽侯县| 利川市| 洛川县| 新竹县| 安远县| 弥渡县| 高邑县| 石城县| 云阳县| 阿拉尔市| 菏泽市| 六枝特区| 桓仁| 芜湖市| 新丰县| 锦屏县| 清涧县| 寿阳县| 拜泉县| 闸北区| 宜兴市| 磐安县| 资溪县| 瑞安市| 灌云县| 方山县| 三河市| 荃湾区| 达孜县| 平南县| 博爱县| 宁德市| 辉南县| 巨鹿县| 武功县| 潮州市| 沂源县| 义乌市| 威宁| 罗甸县| 登封市|