青青青在线视频国产,亚洲熟妇无码一区二区三区,亚洲国产精品无码久久98,竹菊影视欧美日韩一区二区三区四区五区

SZSE:002741
Chemical Reagents
Iron(II) sulfate?heptahydrateCOA Report
  • CAS No.: 7782-63-0
  • Molecular weight:278.02
  • Molecular formula:FeSO4?7H2O
  • EC No.:231-753-5
  • HS-No:28332980
Information
Specification category:
Product No. Product name specifications
1.11165.010 Iron(II) sulfate?heptahydrate AR500g
1.11165.040 Iron(II) sulfate?heptahydrate CP500g
1.11165.060 Iron(II) sulfate?heptahydrate AR25kg
1.11165.070 Iron(II) sulfate?heptahydrate CP25kg
1.11165.130 Iron(II) sulfate?heptahydrate CP25㎏
1.11165.150 Iron(II) sulfate?heptahydrate Spec25kg
1.11165.160 Iron(II) sulfate?heptahydrate AR25kg
1.11165.170 Iron(II) sulfate?heptahydrate AR500g
1.11165.200 Iron(II) sulfate?heptahydrate AR5kg×10
Characteristic: Appearance and properties:Blue green monoclinic crystal.
Relative density: 1.897 (15 ℃)
Melting point(℃): 64 (-3H2O)
Solubility: soluble in water, glycerin, insoluble in ethanol.
Technical indicators:
Item AR CP
Assay 99.0%~101.0% 98.0%~101.0%
Insoluble matter in water ≤0.005% ≤0.02%
Chloride(Cl) ≤0.001% ≤0.005%
Total nitrogen(N) ≤0.001% --
Phosphate(PO4) ≤0.0005% ≤0.002%
Arsenic(As) ≤0.0002% ≤0.0002%
Manganese(Mn) ≤0.05% --
Ferric(Fe(III)) ≤0.02% ≤0.10%
Copper(Cu) ≤0.002% ≤0.01%
Zinc(Zn) ≤0.005% ≤0.02%
Lead(Pb) ≤0.002%v≤0.005%
Substance not deposit in ammonia(as SO4) ≤0.05% ≤0.2%
Related Products

Copyright ? Guangdong?Guanghua?Sci-Tech?Co.,?Ltd. GuangDong ICP No. 14033791-1
业余 自由 性别 成熟视频 视频| 久久久www成人免费毛片| 亚洲大尺度无码无码专线一区| 又大又粗又爽a级毛片免费看| 丁香花在线影院观看在线播放| 国产精品乱码人妻一区二区三区| 国产成人综合久久亚洲精品| 国产啪精品视频网站| 中国gay片男同志免费网站 | 午夜亚洲福利在线老司机| 国产亚洲av夜间福利香蕉149| 性久久久久久久| 99久久国产综合精品女图图等你| 久久综合亚洲色hezyo国产| 性生交大片免费看女人按摩| 又大又硬又黄的免费视频| 国产精品涩涩涩视频网站| 亚洲av综合日韩| 性色av闺蜜一区二区三区| 狠狠躁天天躁中文字幕| 免费无码av一区二区| 绝顶高潮合集videos| 亚洲中文字幕在线观看| 亚洲综合色成在线播放| 女的被弄到高潮娇喘喷水视频| 久久精品国产一区二区电影| 狠狠色综合网站久久久久久久| 97人妻精品一区二区三区| 久久精品国产亚洲av无码偷窥| 久久久久久毛片免费播放| 蜜臀av无码人妻精品| 亚洲 欧美 日韩 综合aⅴ视频| 精品乱码久久久久久中文字幕| 中文无码久久精品| 色播亚洲视频在线观看| 精品免费国产一区二区三区四区| 日本三级香港三级人妇99| 免费观看18禁无遮挡真人网站| 久久人人爽人人爽人人片| 国产熟睡乱子伦视频| 无码国内精品人妻少妇蜜桃视频 |