无码日韩精品一区二区免费暖暖_日韩人妻无码精品久久_狂躁美女大bbbbbb视频u_亚洲精品一区二区三区在线观看_自拍偷自拍亚洲精品播放

SZSE:002741
Chemical Reagents
Potassium hydrogen phthalateCOA Report
  • CAS No.:877-24-7
  • Molecular weight:204.22
  • Aliases:Potassium hydrogen phthalate?
  • Molecular formula:KHC8H4O4
  • EC No.:212-889-4
  • HS-No:29173995
Information
Specification category:
Product No. Product name specifications
1.01906.020 Potassium hydrogen phthalate PT100g
1.01906.030 Potassium hydrogen phthalate GR500g
1.01906.040 Potassium hydrogen phthalate AR500g
1.01906.050 Potassium hydrogen phthalate CP500g
1.01906.060 Potassium hydrogen phthalate GR25kg
1.01906.070 Potassium hydrogen phthalate AR25kg
1.01906.090 Potassium hydrogen phthalate GR25kg
Characteristic: Appearance and properties: Colorless crystal or white crystal powder.
pH value: 4.0(50g/L H2O,20℃)
Solubility: Soluble in water(12eq. cold water or 3eq. hot water).Its aqueous solution is acidity.Insoluble in alcohol.
Technical indicators:
Item PT
Assay(C8H5O4K) 99.9%~100.05%
pH-value(50g/L solution,25℃) 3.8~4.1
Clarity of solution pass2
Insoluble matter in water ≤0.003%
Chloride(Cl) ≤0.002%
Sulfide(as SO4) ≤0.006%
Sodium(Na) ≤0.005%
Iron(Fe) ≤0.0005%
Heavy metals(as Pb) ≤0.0005%
Related Products

Copyright ? Guangdong?Guanghua?Sci-Tech?Co.,?Ltd. GuangDong ICP No. 14033791-1
免费女人18毛片a级毛片视频 | 国产成年无码av片在线| 亚洲精品成a人在线观看| 欧洲熟妇色xxxx欧美老妇老头多毛| 日韩av在线高清观看| 少妇无码吹潮| 国产69精品久久久久乱码| 色综合99久久久无码国产精品| 亚洲av片无码久久五月| 狠狠噜天天噜日日噜视频麻豆 | 奇米综合四色77777久久| 亚洲av无码一区二区乱子仑| 一本色道久久88—综合亚洲精品| 国产精品美女www爽爽爽视频| 爆乳熟妇一区二区三区霸乳| 中文字幕人妻无码专区APP| 亚洲不卡中文字幕无码| 男人扒开女人双腿猛进视频 | 少妇特黄a一区二区三区| 色欧美片视频在线观看| 国产免费久久精品国产传媒| 一本大道东京热无码一区| 少妇被粗大猛进进出出| 亚洲 欧美 中文 在线 视频| 亚洲精品国产品国语原创| 亚洲国产精品无码久久久| 欧美天天综合色影久久精品| 精品少妇人妻av免费久久洗澡| 欧美熟妇色ⅹxxx欧美妇| 精品无码免费专区毛片| 六月婷婷缴清综合在线| 久久天天躁狠狠躁夜夜躁2014| 亚洲av无码专区在线电影| 欧美大屁股xxxx高跟欧美黑人| 免费看男女做好爽好硬视频| 亚洲av无码男人的天堂| 国产精品福利一级久久| 亚洲综合av一区二区三区| 午夜精品久久久久久久喷水| 国产亚洲精品久久久ai换| 欧洲人妻丰满av无码久久不卡|