大地资源第三页高清在线观看免费,大地影视中文资源6,大地二资源在线高清免费,大地资源高清在线视频,大地二资源在线高清国语版,大地第二资源在线播放免费观看

SZSE:002741
Chemical Reagents
Potassium carbonate crystalCOA 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
欢迎光临: 卓尼县| 和顺县| 安阳县| 九江市| 美姑县| 江川县| 平乐县| 漳平市| 左权县| 桓仁| 志丹县| 岗巴县| 新蔡县| 海宁市| 兰州市| 洛宁县| 盖州市| 龙胜| 岑巩县| 同德县| 罗定市| 托克托县| 景洪市| 增城市| 抚宁县| 慈利县| 宣武区| 信阳市| 临漳县| 沈丘县| 南木林县| 瑞昌市| 湟中县| 抚松县| 伽师县| 巴林右旗| 咸宁市| 武功县| 滦平县| 罗源县| 大埔县|