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
Ammonium dichromate?COA Report
  • CAS No.:7789-09-5
  • Molecular weight:252.07
  • Aliases:Ammonium dichromate
  • Molecular formula:(NH4)2Cr2O7
  • UN Code:1439
  • EC No.:232-143-1
Information
Specification category:
Product No. Product name specifications
1.06087.015 Ammonium dichromate AR500g
1.06087.025 Ammonium dichromate CP500g
1.06087.045 Ammonium dichromate AR25kg
Characteristic: Appearance and properties:Orange yellow monoclinic crystal.
Relative density (water=1):2.15
Relative vapor density:8.7
Concentration:Content: Industrial grade ≥95%.
Solubility:Soluble in water, dissolved in acetone, soluble in ethanol.
Other Properties: 170
Technical indicators:
Item AP CP Assay[(NH4)2Cr2O7] ≥99.0% ≥99.0% Insoluble matter in water ≤0.002% ≤0.005% Chloride (Cl) ≤0.002% ≤0.005% Sulfate (SO4) ≤0.01% ≤0.03% Sodium (Na) ≤0.005% ≤0.05% Potassium (K) ≤0.07% ≤0.16% Calcium (Ca) ≤0.002% ≤0.01% Iron (Fe) ≤0.002% ≤0.005%
Related Products

Copyright ? Guangdong?Guanghua?Sci-Tech?Co.,?Ltd. GuangDong ICP No. 14033791-1
日本熟妇色xxxxx日本免费看| 人妻少妇熟女javhd| 亚洲欧美激情精品一区二区| 无码人妻专区免费视频| 欧美高清性色生活片免费观看| 久久精品国产只有精品2020| 国产精品久久久久久久久人妻| 可播放的亚洲男同网站| 国产精品99久久免费| 成人免费午夜福利片在线观看| 国产亚洲精品久久久久久大师| 亚洲国产精品一区二区成人片国内| 色偷偷色噜噜狠狠网站年轻人| 在线观看国产精品va| 亚洲无日韩码精品| 99久久久成人国产精品免费| 亚洲欧洲日产韩国无码| 国产av国片精品jk制服| 制服丝袜av无码专区完整版| 久久久无码一区二区三区| 亚洲国产成人综合在线观看| 国产精品久久久久久久伊一| av无码小缝喷白浆在线观看| 久久爱www人成狠狠爱综合网| 日日躁夜夜躁狠狠久久av| 狠狠狼鲁亚洲综合网| 国产午夜成人免费看片app| 丁香五月亚洲综合在线| 超碰国产精品久久国产精品99 | 老司机免费的精品视频| 美女无遮挡免费视频网站| 亚洲精品无码不卡av| 国产一区日韩二区欧美三区| 四虎影视永久在线精品| 国产无吗一区二区三区在线欢| 亚洲中文欧美在线视频| 精品无码国产av一区二区三区| 人人妻人人澡人人爽秒播| 国产精品妇女一二三区| 日韩人妻精品一区二区三区视频| 人妻无码中文专区久久五月婷 |