成人网站免费观看,99e久热只有精品8在线直播,亚洲综合无码明星蕉在线视频,亚洲精品一区二区三区中文字幕

SZSE:002741
Chemical Reagents
Potassium bromide?COA Report
  • CAS No.:7758-02-3
  • Aliases:Potassium bromide?
  • Molecular formula:KBr
  • EC No.:231-830-3
  • HS-No:28275100
Information
Specification category:
Product No. Product name specifications
1.01706.020 Potassium bromide AR500g
1.01706.030 Potassium bromide CP500g
1.01706.040 Potassium bromide CP25kg/Drum
1.01706.080 Potassium bromide AR25kg/Drum
1.01706.090 Potassium bromide AR25kg/Sack
Characteristic: Appearance and properties: White crystal or powder,odourless,salty,slightly bitter and hygroscopic.
Relative density: 2.75(water=1)(25℃)
Melting point(℃): 730
Boiling point(℃): 1435
Concentration: Pure
Saturated vapour pressure(hPa): 1.3(795℃)
Solubility: Soluble in water and glycerol, slightly soluble in ethanol and aether.
Technical indicators:
Item AR CP
Assay(KBr) ≥99.0% ≥98.0%
pH value(50g/L solution,25℃) 5.5~8.5 5.5~8.5
Clarity of solution Pass2 Pass4
Insoluble matter in water ≤0.005% ≤0.01%
Chloride(Cl) ≤0.2% ≤0.5%
Bromate(BrO3) ≤0.001% ≤0.003%
Iodide(I) ≤0.005% ≤0.01%
Sulfate(SO4) ≤0.002% ≤0.005%
Total nitrogen(N) ≤0.001% ≤0.002%
Sodium(Na) ≤0.02% ≤0.05%
Magnesium(Mg) ≤0.0005% ≤0.002%
Calcium(Ca) ≤0.002% ≤0.005%
Iron(Fe) ≤0.0002% ≤0.0005%
Barium(Ba) ≤0.002% ≤0.005%
Heavy metals(as Pb) ≤0.0002% ≤0.0005%
Related Products

Copyright ? Guangdong?Guanghua?Sci-Tech?Co.,?Ltd. GuangDong ICP No. 14033791-1
国产精品久久久久永久免费看| 欧美成人精品三级在线观看| 永久黄网站色视频免费无下载| 成·人免费午夜无码视频蜜芽| 国产精品无码久久一线| 久久久久99精品成人片试看| 99久久国产综合精品麻豆| 99国产精品无码专区| 蜜桃精品免费久久久久影院| 男女啪啪永久免费网站| 精品无码久久久久久久久水蜜桃| 欧美老熟妇乱子伦牲交视频| 亚洲国产精品无码久久久蜜芽 | 国产精品久久久久无码av| 精品av一区二区三区不卡| 欧美人妻精品一区二区三区| 潮喷大喷水系列无码久久精品| 强行糟蹋人妻hd中文字| 精品亚洲国产成av人片传媒| 亚洲国产五月综合网| 日本一卡2卡3卡4卡5卡精品视频 | 国产亚洲精品久久久久久久软件 | 尤物精品视频无码福利网| 无码中文字幕热热久久| 亚洲色婷婷久久精品av蜜桃久久| 国产熟女精品视频大全| 色婷婷狠狠97成为人免费| 一本大道无码日韩精品影视丶| 尤物色综合欧美五月俺也去| 99久re热视频这只有精品6| 放荡的少妇2欧美版| 久久无码人妻一区二区三区| 国产av激情久久无码天堂| 天堂网在线观看| 51妺嘿嘿午夜福利| 国产一在线精品一区在线观看| 亚洲一区天堂九一| 国产精品亚洲一区二区在线观看| 无码人妻少妇伦在线电影| 国产超碰女人任你爽| 在线a亚洲老鸭窝天堂|