国产亚洲AV片在线观看18女人,日韩精品极品视频在线观看免费,日产精品卡二卡三卡四卡区,国产精品欧美久久久久无广告,人妻插B视频一区二区三区

SZSE:002741
Chemical Reagents
Tin(II) chloride?dihydrateCOA Report
  • CAS No.: 10025-69-1
  • Molecular weight:225.63
  • Molecular formula:SnCl2·2H2O
  • EC No.:231-868-0
Information
Specification category:
Product No. Product Name Specification
1.05314.010 Tin(II) chloride?dihydrate AR500g
1.05314.020 Tin(II) chloride?dihydrate CP500g
1.05314.030 Tin(II) chloride?dihydrate AR20kg
1.05314.040 Tin(II) chloride?dihydrate CP25kg
1.05314.050 Tin(II) chloride?dihydrate AR500g
1.05314.080 Tin(II) chloride?dihydrate AR25kg
1.05314.100 Tin(II) chloride?dihydrate AR22.5㎏
1.05314.140 Tin(II) chloride?dihydrate(New technology research and development) AR25kg
Characteristic: Appearance and propertie: white, odorless powder and fine crystal
pH value: 2.0 (100 g / l H2O 20 ° C)
Melting Point(℃): 246
Boiling Point(℃): 652 (1013 hPa) Relative density
(water): 3.95g/cm3 (20 ° C)
Thermal decomposition: Solubility: ? Water (20 ° C) 2700 g / l Ethanol (20 ° C) soluble
Technical indicators:
Specification AR CP
Assay (SnCl2 · 2H2O) ≥ 98.0% ≥ 97.0%
Clarity test, number ≤ 3 ≤ 5
Hydrochloric acid insoluble matter ≤ 0.005% ≤ 0.01%
Sulfate (SO4) ≤ 0.003% ≤ 0.01%
Iron (Fe) ≤ 0.003% ≤ 0.01%
Copper (Cu) ≤ 0.002% ≤ 0.005%
Arsenic (As) ≤ 0.0001% ≤ 0.0002%
Lead (Pb) ≤ 0.005% ≤ 0.02%
Hydrogen sulfide does not precipitate (as sulfate) ≤ 0.02% ≤ 0.10
Related Products

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