久久99精品久久久久久hb亚瑟-免费看无码毛视频成片-99热这里只有精品免费播放-亚洲精品少妇高清30p-国产午夜福利精品久久2021

SZSE:002741
Chemical Reagents
Potassium carbonate crystal COA Report
  • CAS No.:6381-79-9
  • Molecular weight:165.25
  • Aliases:Potassium carbonate-1.5-hydrate
  • Molecular formula:K2CO3·1.5H2O
  • EC No.:209-529-3
  • HS-No:28364000
Information
Specification category:
Product No. Product name specifications
1.01861.010 Potassium carbonate crystal AR500g
1.01861.020 Potassium carbonate crystal CP500g
1.01861.030 Potassium carbonate crystal AR25kg
Characteristic: Appearance and properties: White odorless solid.
pH value: Strong alkalinity(50g/L H2O,20℃)
Relative density: 2.043(water=1)(20℃)
Melting point(℃): 891
Concentration: Pure
Solubility: Dissolve easily in water,slightly soluble in ethanol.
Technical indicators:
Item AR CP
Assay ≥99.0% ≥98.0%
Insoluble matter in water ≤0.01% ≤0.03%
Chloride(Cl) ≤0.002% ≤0.01%
Sulfide(as SO4) ≤0.004% ≤0.01%
Total nitrogen(N) ≤0.001% ≤0.01%
Phosphate(PO4) ≤0.005% ≤0.01%
Silicate(SiO3) ≤0.005% ≤0.01%
Aluminium(Al) ≤0.01% ≤0.03%
Arsenic(As) ≤0.00005% ≤0.00005%
Sodium(Na) ≤0.05% ≤0.1%
Magnesium(Mg) ≤0.002% ≤0.005%
Calcium(Ca) ≤0.015% ≤0.02%
Iron(Fe) ≤0.001% ≤0.002%
Heavy metals(as Pb) ≤0.0005% ≤0.0005%
Related Products

Copyright ? Guangdong?Guanghua?Sci-Tech?Co.,?Ltd. GuangDong ICP No. 14033791-1
主站蜘蛛池模板: 国产亚洲视频在线播放香蕉| 欧美变态另类zozo| 中文区中文字幕免费看| 国产成人精品日本亚洲999| 久久96国产精品久久久| 99热精品国产三级在线| 欧美黑人又粗又大xxxx| 69精品国产久热在线观看| 国产色xx群视频射精| 丰满老熟女毛片| 国产片在线天堂av| 亚洲人成电影在线播放| 中文字幕丝袜第1页| 九九99热久久精品在线6| 中文字幕乱码一区二区免费 | 狠狠久久亚洲欧美专区| 国产成人亚洲精品无码h在线 | 精品国产av一区二区三区| 日本一本免费一区二区三区免 | 无码人妻aⅴ一区二区三区| 久久精品女人天堂av麻| 五十路丰满中年熟女中出| 日本免费大黄在线观看| 久久www色情成人免费| 久久综合激激的五月天| 亚洲综合av一区二区三区| 中文字幕韩国三级理论| 99蜜桃臀久久久欧美精品| 久久精品无码一区二区软件| 国内大量揄拍人妻精品视频| 亚洲日韩欧洲无码a∨夜夜| 无码国产精品一区二区免费vr| 亚洲色欲啪啪久久www综合网 | 欧美午夜特黄aaaaaa片 | 亚洲精品国产高清在线观看| 精品国产一区二区三区色欲| 小受叫床高潮娇喘嗯啊mp3| 成年男人午夜片| 免费人成视频网站在线观看18| 四虎精品成人a在线观看| 熟女无套高潮内谢吼叫免费|