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
di-Potassium hydrogen phosphate anhydrous COA Report
  • CAS No.:7758-11-4
  • Molecular weight:174.18
  • Aliases:di-Potassium hydrogen phosphate
  • Molecular formula:K2HPO4
  • EC No.:231-834-5
  • HS-No:28352400
Information
Specification category:
Product No. Product name specifications
1.01938.010 di-Potassium hydrogen phosphate anhydrous AR500g
1.01938.040 di-Potassium hydrogen phosphate anhydrous AR25kg
Characteristic: Appearance and properties:White particle or crystal powder.
Relative density: 2.44(water=1)(20℃)
Melting point(℃): 340
Concentration: Pure
Solubility: Soluble in water(1600g/L,20℃),slightly soluble in ethanol(20℃).
Technical indicators:
Item AR CP
Assay ≥98.0% ≥97.0%
pH-value(25g/L solution,25 ℃) 9.0~9.3 9.0~9.3
Clarity of solution Pass Pass
Insoluble matter in water ≤0.02% ≤0.03%
Chloride(Cl) ≤0.004% ≤0.005%
Nitrate(NO3) ≤0.002% ≤0.004%
Sulfate(SO4) ≤0.03% ≤0.04%
Arsenic(As) ≤0.0005% ≤0.001%
Iron(Fe) ≤0.003% ≤0.004%
Magnesium(Mg) ≤0.0005% ≤0.001%
Sodium(Na) ≤0.07% ≤0.10%
Heavy metals(as Pb) ≤0.0025% ≤0.005%
Related Products

Copyright ? Guangdong?Guanghua?Sci-Tech?Co.,?Ltd. GuangDong ICP No. 14033791-1
主站蜘蛛池模板: 潮喷失禁大喷水av无码| 中文字幕v亚洲日本在线| 柠檬福利精品视频导航| 成人精品一区二区三区电影免费| 西西大胆午夜人体视频妓女| 天美传媒精品1区2区3区| 国产成人精品无码专区| 午夜无码片在线观看影院y| 亚洲va欧美va人人爽| 麻豆av一区二区天美传媒| 亚洲中文字幕无码久久精品1| 日韩国产人妻一区二区三区| 久久青草成人综合网站| 亚洲精品无码你懂的网站| 国产精品久久久久久人妻精品18| 久久国产免费观看精品3| 精品9e精品视频在线观看| 玩丰满高大邻居人妻无码| 色婷婷综合久久久久中文字幕| 成人无码特黄特黄av片在线| 亚洲中文字幕久久精品无码2021| 欧美做受又硬又粗又大视频| av片在线观看| www.99热| 无遮挡啪啪摇乳动态图gif| 亚洲人成网线在线播放| 久久无码字幕中文久久无码| 久久精品国自产拍| 在线精品国精品国产尤物| 亚欧成人中文字幕一区| 五月婷之久久综合丝袜美腿 | 2022色婷婷综合久久久| 免费看黄色片| 日韩人妻中文无码一区二区三区| 全国最大成人网| 性夜影院爽黄e爽| 国产乱视频在线观看| 无码成人免费全部观看| 玩两个丰满老熟女久久网| 国产亚洲精品一区二区三区| 国产在线无码制服丝袜无码|