中文字幕亚洲欧美日本懂色,亚洲视频一区在线色婷婷,天天干天天干天天日天天操,麻豆国产精品777777在线,欧美一区二区三区另,中文字幕丰满人妻日本了,熟妇人妻av中文字幕在线,最新福利免费视频一区二区,伊人少妇精品在线观看视频

SZSE：002741
Chemical Reagents
Potassium dihydrogen phosphateCOA Report
  • CAS No.：7778-77-0
  • Molecular weight：136.09
  • Aliases：mono-Potassium orthophosphate,Potassium triphosphate,Potassium phosphate monobasic
  • Molecular formula：KH2PO4
  • EC No.：231-913-4
  • HS-No：28352400
Information
Specification category：
Product No. Product name specifications
1.01863.020 Potassium dihydrogen phosphate AR500g
1.01863.030 Potassium dihydrogen phosphate AR25kg
1.01863.040 Potassium dihydrogen phosphate CP500g
1.01863.050 Potassium dihydrogen phosphate CP25kg
1.01863.060 Potassium dihydrogen phosphate CP25kg
1.01863.080 Potassium dihydrogen phosphate AR25kg
1.01863.120 Potassium dihydrogen phosphate AR25kg
Characteristic： Appearance and properties: Coloeless odorless solid.
pH value: 4.4(50g/L H2O,20℃)
Relative density: 2.34(water=1)(20℃)
Melting point(℃): 253(decomposition)
Concentration: Pure
Solubility: Dissolve easily in water,insoluble in ethanol.
Technical indicators：
Item AR CP
Assay(KH2PO4) ≥99.5% ≥99.0%
pH-value(50g/L solution,25℃) 4.2~4.5 4.2~4.5
Clarity of solution Pass2 Pass4
Insoluble matter in water ≤0.002% ≤0.005%
Loss on drying ≤0.2% ≤0.3%
Chloride(Cl) ≤0.001% ≤0.005%
Sulfate(SO4) ≤0.003% ≤0.005%
Total nitrogen(N) 0.001% ≤0.002%
Arsenic(As) ≤0.0005% ≤0.002%
Sodium(Na) ≤0.02% ≤0.05%
Iron(Fe) ≤0.001% ≤0.005%
Heavy metals(as Pb) ≤0.001% ≤0.005%
Related Products

Copyright ? Guangdong?Guanghua?Sci-Tech?Co.,?Ltd. GuangDong ICP No. 14033791-1