亚洲a级在线观看|夫妇交换性3中文字幕|在线看片网站,欧美激情狂野,91视频社区,精品电影一区二区三区

SZSE:002741
Chemical Reagents
Potassium carbonate anhydrousCOA Report
  • CAS No.:584-08-7
  • Molecular weight:138.21
  • Aliases:Potassium carbonate
  • Molecular formula:K2CO3
  • EC No.:209-529-3
  • HS-No:28364000
Information
Specification category:
Product No. Product name specifications
1.01860.020 Potassium carbonate anhydrous AR500g
1.01860.030 Potassium carbonate anhydrous AR25kg
1.01860.040 Potassium carbonate anhydrous CP500g
Characteristic: Appearance and properties: White powder or parcitle crystal,very sensitive to moisture.
Relative density: 2.43(water=1)(20℃)
Melting point(℃): 891
Concentration: Pure
Solubility: Dissolve easily in water,insoluble in ethanol and ether.
Technical indicators:
Item AR CP
Assay(K2CO3) ≥99.0% ≥98.0%
Clarity of solution Pass3 Pass5
Insoluble matter in water ≤0.005% ≤0.03%
Chloride(Cl) ≤0.003% ≤0.01%
Sulfur compound(as SO4) ≤0.003% ≤0.01%
Total nitrogen(N) ≤0.001% ≤0.01%
Phosphate and silicate(as SiO2) ≤0.005% ≤0.02%
Loss on drying ≤1.0% ≤2.0%
Sodium(Na) ≤0.05% ≤0.10%
Magnesium(Mg) ≤0.002% ≤0.005%
Calcium(Ca) ≤0.002% ≤0.02%
Iron(Fe) ≤0.0005% ≤0.002%
Copper(Cu) ≤0.0005% ≤0.001%
Lead(Pb) ≤0.0005% ≤0.001%
Related Products

Copyright ? Guangdong?Guanghua?Sci-Tech?Co.,?Ltd. GuangDong ICP No. 14033791-1
主站蜘蛛池模板: 黄平县| 扬中市| 左贡县| 漳平市| 徐汇区| 杭锦后旗| 南丰县| 屯门区| 额敏县| 涟源市| 拉萨市| 潞城市| 襄樊市| 财经| 龙里县| 乐平市| 泰顺县| 河北省| 建始县| 洛南县| 澜沧| 汶上县| 小金县| 昆明市| 九龙坡区| 阿瓦提县| 银川市| 孟村| 德阳市| 夹江县| 汾西县| 湾仔区| 海阳市| 沙河市| 安阳市| 昌黎县| 巴马| 镇康县| 哈巴河县| 利辛县| 九江市|