被两个男摁住玩弄尿孔的视频|《被按摩的人妻4》BD高清完整版|娇妻互换被高潮了三次|荫蒂每天被三个男人添|边做饭边被躁我和邻居的视频|巜被部长玩弄的人妻

SZSE:002741
Chemical Reagents
Chromium(Ⅲ) potassium sulfate dodecahydrateCOA Report
  • CAS No.:7788-99-0
  • Molecular weight:499.40
  • Aliases:Alum chrome
  • Molecular formula:KCr(SO4)2·12H2O
  • EC No.:233-401-6
  • HS-No:28333000
Information
Specification category:
Product No. Product name specifications
1.01774.010 Chromium potassium sulfate dodecahydrate AR500g
1.01774.020 Chromium potassium sulfate dodecahydrate CP500g
1.01774.030 Chromium potassium sulfate dodecahydrate AR25kg
1.01774.040 Chromium potassium sulfate dodecahydrate CP25kg
1.01774.040 Chromium potassium sulfate dodecahydrate CP25kg
Characteristic: Appearance and properties: Deep violet,odorless solid.
pH value: 3(50g/L H2O,20℃)
Relative density: 1.83(water=1)(20℃)
Melting point(℃): 89
Concentration: Pure
Solubility: Soluble in water (4eq. cold water or 2eq. hot water) and dilute acid,insoluble in alcohol.
Technical indicators:
Item AR CP
Assay[KCr(SO4)·12H2O] ≥99.5% ≥99.0%
Insoluble matter in water ≤0.005% ≤0.01%
Chloride(Cl) ≤0.002% ≤0.005%
Ammonium salt(NH4) ≤0.01% ≤0.03%
Aluminum(Al) ≤0.02% ≤0.05%
Iron(Fe) ≤0.005% ≤0.02%
Heavy metals(as Pb) ≤0.002% ≤0.01%
Related Products

Copyright ? Guangdong?Guanghua?Sci-Tech?Co.,?Ltd. GuangDong ICP No. 14033791-1
欢迎光临: 胶州市| 奉节县| 电白县| 新河县| 太和县| 汝城县| 洱源县| 尼勒克县| 林西县| 玉山县| 长葛市| 邵阳县| 金昌市| 汉阴县| 潜江市| 稻城县| 柞水县| 麻江县| 大理市| 神农架林区| 德庆县| 赤壁市| 遂平县| 阳新县| 安义县| 南昌县| 阿坝| 广河县| 申扎县| 牙克石市| 大港区| 留坝县| 衡阳市| 友谊县| 昔阳县| 双柏县| 福州市| 石楼县| 双流县| 北安市| 离岛区|