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
Sodium hydrogen sulfite?COA Report
  • CAS No.：7631-90-5
  • Molecular weight：104.06
  • Molecular formula：NaHSO3
  • EC No.：231-548-0
Information
Specification category：
Product No. Product name specifications
1.01511.018 Sodium hydrogen sulfite? AR500g
1.01511.028 Sodium hydrogen sulfite? CP500g
1.01511.038 Sodium hydrogen sulfite? AR25kgdrum
1.01511.048 Sodium hydrogen sulfite? CP25kgdrum
1.01511.068 Sodium hydrogen sulfite? AR8kg×4
1.01511.078 Sodium hydrogen sulfite? CP1kgBottle
1.01511.088 Sodium hydrogen sulfite? Spec25kg/Sack
1.01511.088 Sodium hydrogen sulfite? Spec25kg/Sack
1.01511.108 Sodium hydrogen sulfite? AR10kg
Characteristic： Appearance and properties: white crystal powder. The smell of sulfur dioxide.
Relative density?(water=1): 1.48(20℃)
Concentration: assay: technical grade≥99.5%.
Solubility: Soluble in water. Slightly soluble in ethanol、diethyl ether.
Technical indicators：
Item AR CP Assay(SO2) ≥58.5% ≥58.5% Clarity of solution Pass3 Pass5 Insoluble matter in water ≤0.005% ≤0.01% Chloride(Cl) ≤0.01% ≤0.02% Iron(Fe) ≤0.001% ≤0.002% Arsenic(As) ≤0.0001% ≤0.0002% Heavy metals(as Pb) ≤0.001% ≤0.002%
Related Products

Copyright ? Guangdong?Guanghua?Sci-Tech?Co.,?Ltd. GuangDong ICP No. 14033791-1
中文字幕人妻熟女在线| 久久精品亚洲乱码伦伦中文| 免费看无码自慰一区二区| 夜先锋av资源网站| 久久精品中文字幕大胸| 国产人妻人伦精品1国产| 粗一硬一长一进一爽一a级| 无码人妻精品一区二区三区夜夜嗨| 国产偷人爽久久久久久老妇app| 日韩一区二区在线观看视频| 国产产无码乱码精品久久鸭| 欧美成人片一区二区三区| 老熟女hdxx老小配| 欧美乱码伦视频免费| 成人性做爰aaa片免费看不忠| 亚洲精品成人网站在线观看| 欧美精品亚洲精品日韩专区va| 国产成人精品av| 久久好在线视频| 亚洲av日韩av激情亚洲| 国产午夜精品一区二区| 精品国产午夜理论片不卡| 不卡一区二区国产精品| 免费a级毛片无码a∨蜜芽试看 | 东北丰满少妇多毛大隂户| 又大又硬又爽免费视频| av在线播放观看地址| 无码人妻一区二区三区免费看 | 日韩免费无码人妻波多野| 蜜臀av午夜福利在线| 成年美女看的黄网站色戒| 狠狠中文一区字幕久久| 国产麻豆剧果冻传媒星空视频| 日本亚洲中文字幕不卡| 无码人妻丰满熟妇区免费| 国产肥熟女视频一区二区三区| 疯狂做受xxxx高潮不断| 国精品99久9在线 | 免费| 国产又粗又猛又黄又爽无遮挡 | 亚洲人成网7777777国产| 亚洲色欲色欲www在线观看|