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
Disodium hydrogen phosphate?dodecahydrateCOA Report
  • CAS No.：10039-32-4
  • Molecular weight：358.14
  • Molecular formula：Na2HPO4·12H2O
  • EC No.：231-448-7
  • HS-No：28352200
Information
Specification category：
Product No. Product name specifications
1.01504.040 Disodium hydrogen phosphate?dodecahydrate AR500g
1.01504.050 Disodium hydrogen phosphate?dodecahydrate AR25kg/drum
1.01504.060 Disodium hydrogen phosphate?dodecahydrate CP500g
1.01504.070 Disodium hydrogen phosphate?dodecahydrate CP25kg/drum
1.01504.090 Disodium hydrogen phosphate?dodecahydrate CP25kg/drum
1.01504.100 Disodium hydrogen phosphate?dodecahydrate Spec25㎏/drum
1.01504.110 Disodium hydrogen phosphate?dodecahydrate CP25kg/Sack
1.01504.120 Disodium hydrogen phosphate?dodecahydrate AR25kg/Sack
Characteristic： Appearance and properties: Colorless translucent orwhite grain or powder.
pH value: ～9.0-9.4(50 g/L H2O,20℃)
Relative density?(g/cm3)(water=1)(20℃): 1.52
Melting point(℃): 35
Concentration: sterling
Solubility: Soluble in water. Dissolved?in ethanol.
Technical indicators：
Item AR CP
Assay ≥99.0% ≥98.0%
pH valuepH value(50g/L,25℃) 9.1～9.4 9.1～9.4
Clarity of solution Pass3 Pass4
Insoluble matter in water ≤0.005% ≤0.01%
Chloride(Cl) ≤0.001% ≤0.003%
Sulfate(SO4) ≤0.005% ≤0.03%
Total nitrogen(N) ≤0.002% ≤0.002%
Potassium(K) ≤0.01% ≤0.01%
Iron(Fe) ≤0.0005% ≤0.005%
Arsenic(As) ≤0.0005% ≤0.005%
Heavy metals(as Pb) ≤0.0005%≤0.005%
Related Products

Copyright ? Guangdong?Guanghua?Sci-Tech?Co.,?Ltd. GuangDong ICP No. 14033791-1
国产suv精品一区二区883| 国内精品九九久久久精品| 国产亚洲视频中文字幕97精品 | 老子午夜精品888无码不卡| 大又大又粗又硬又爽少妇毛片| 国产精品美女久久久久av超清| 色婷婷精品大在线视频| 久热中文字幕无码视频| 久久天天躁狠狠躁夜夜| 久久久久久亚洲综合影院| 亚洲风情亚aⅴ在线发布| 久久精品无码人妻无码av| 美女被?到高潮喷出白浆漫画入口| 久久精品国产一区二区电影| 国产熟妇另类久久久久婷婷| 亚洲国产成人超a在线播放| 亚洲色欲色欲www成人网| 久久青青草免费线频观| 国产精品成人av电影不卡| 国产亚洲精品a在线| 日韩精品无码二三区a片| 国产精品办公室沙发| 大肉大捧一进一出好爽视频mba | 久久久久国产精品熟女影院| 免费无码又爽又刺激高潮| 丰满人妻无奈张开双腿av| 爽死你欧美大白屁股在线| 97人伦色伦成人免费视频| 狠狠噜天天噜日日噜av| 亚洲色欲色欲www在线观看| 狠狠狠色丁香综合婷婷久久| av无码国产在线观看岛国| 国产亚洲成av人片在线观看| 欧美黑人xxxx性高清版| 国产精品一区二区av麻豆| 免费看无码毛视频成片| 亚洲欧洲国产码专区在线观看| 性欧美老人牲交xxxxx视频| 亚洲一区二区三区在线播放无码| 欧美丰满熟妇性xxxx| 在线亚洲97se亚洲综合在线|