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
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
久久蜜| 国模冰莲自慰肥美胞极品人体图| 亚洲精品97久久中文字幕无码| 国产福利在线永久视频| 8x国产精品视频| 精品无码欧美黑人又粗又| 婷婷色婷婷深深爱播五月| 九九99热久久精品在线6| 中文字幕乱码久久午夜| 内射囯产旡码丰满少妇| 五月天久久久噜噜噜久久| 深爱婷婷国产在线精品av| 无码专区人妻诱中文字幕| 国产成人av在线免播放观看新| 国精产品一区一区三区有限公司杨| 人妻熟妇乱又伦精品视频无广告 | 伊人久久大香线蕉综合网站| 亚洲精品天堂成人片av在线播放| 99久久成人国产精品免费| 久久国产美女精品久久| 国产午夜鲁丝无码拍拍| 2020最新国产自产精品| 国产成人亚洲精品无码影院bt| 免费看国产黄线在线观看| 精品福利一区二区三区免费视频 | 亚洲中文字幕琪琪在线| 丝袜美腿一区二区三区| 人人玩人人添人人澡超碰| 无码h黄肉动漫在线观看| 色五月丁香五月综合五月| 欧美日韩人成视频在线播放| 国产18禁黄网站免费观看| 国产人久久人人人人爽| 一区二区三区在线 | 中国| 国产成人无码精品久久久性色| 成人18禁深夜福利网站app免费| 无码一区二区三区爆白浆| 狠狠躁夜夜躁人人爽天天古典| 日韩免费无码视频一区二区三区| 久久久久人妻精品一区二区三区| 亚洲精品一卡2卡3卡4卡乱码 |