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
N,N-Dimethylformamide?COA Report
  • CAS No.:68-12-2?
  • Molecular weight:73.10
  • Aliases:Dimethylform amide; DMF
  • Molecular formula:C3H7NO
  • UN Code:2265
  • EC No.:200-679-5
  • HS-No:29241900
Information
Specification category:
Product No. Product name specifications
1.20307.013 N,N-Dimethylformamide AR500mL
1.20307.023 N,N-Dimethylformamide CP500mL
1.20307.043 N,N-Dimethylformamide AR2.5L
1.20307.063 N,N-Dimethylformamide AR25L
Characteristic: Appearance and properties: colorless liquid with a faint characteristic odor.
Melting point (℃): -61
Boiling point (℃): 152.8
Flash point (℃): 58
Upper explosive limit% (V / V): 15.2
Density: relative density (water = 1) 0.94
Relative vapor density (air = 1): 2.51
Ignition temperature (℃): 445
Lower explosive limit% (V / V): 2.2
Heat of combustion (kJ / mol): 1915
Saturated vapor pressure (hPa): 3.46 (60 ℃)
Critical temperature (℃): 374
Critical pressure (MPa): 4.48
Technical indicators:
Item AR CP
Assay [HCON(CH3)2] ≥99.5% ≥99.0%
Chroma, Hazen ≤10 ≤20
Density(20℃),g/ml 0.945~0.950 0.945~0.950
Evaporation residue ≤0.005% ≤0.01%
Acidity(as H+), mmol/100g ≤0.1 ≤0.2
Alkalinity(as OH-),mmol/100g ≤0.1 ≤0.2
Iron(Fe) ≤0.0005% ≤0.001%
Water(H2O) ≤0.1% ≤0.2%
Hazard characteristics:

IATA-DGR UN 2265 N,N-DIMETHYLFORMAMIDE,3,III

Related Products

Copyright ? Guangdong?Guanghua?Sci-Tech?Co.,?Ltd. GuangDong ICP No. 14033791-1
av无码精品一区二区三区 | 日本三级香港三级人妇三| 免费a级做爰片在线观看爱色戒| 国产中文字幕一区二区| 亚洲 欧美 激情 小说 另类 | 日本真人做人试看60分钟| 成年美女黄网站18禁免费| 欧美性白人极品1819hd| 亚洲VA无码专区国产乱码| 国精产品推荐视频| 精久国产一区二区三区四区| 中文字幕精品一二三四五六七八| 精品乱码久久久久久久| 国产精品va无码一区二区 | 精品国际久久久久999波多野| 久久婷婷五月综合色丁香 | 国产精品久久久久7777| 国外人妻视频免费播放| 精品成人一区二区三区四区| 亚洲中文字幕在线观看| 久久久久久夜精品精品免费啦 | 国产精品久久久久久久久久久久午衣片| 制服丝袜一区二区三区| 制服丝袜另类专区制服| 国产乱码精品一区三上| 亚洲一区av无码专区在线观看| 亚洲日韩精品无码专区加勒比| 亚洲人成影院在线无码按摩店| 无套内谢少妇毛片aaaa片免费 | 男女18禁啪啪无遮挡| 无码永久成人免费视频| 成熟丰满熟妇高潮xxxxx| av入口一区二区三区| 人人妻人人澡人人爽人人精品浪潮| 特级a欧美做爰片第一次| 手机看片久久国产免费| 久久久受www免费人成| 99久久99久久加热有精品| 久无码久无码av无码| 国产成年女人毛片80s网站| 欧美情侣性视频|