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
1-Methyl-2-pyrrolidone?COA Report
  • CAS No.:872-50-4
  • Molecular weight:99.13
  • Molecular formula:C5H9NO
  • EC No.:212-828-1
  • HS-No:29337900
Information
Specification category:
Product No. Product name specifications
1.17943.010 1-Methyl-2-pyrrolidone AR500mL
1.17943.020 1-Methyl-2-pyrrolidone AR200kg
1.17943.060 1-Methyl-2-pyrrolidone AR2.5L/Bottle
1.17943.090 1-Methyl-2-pyrrolidone AR20L
1.17943.100 1-Methyl-2-pyrrolidone AR20kg
Characteristic: Appearance and properties:colorless to pale yellow liquid with amine odor.
pH value: 8.5-10.0(100g/L,20 ℃)
Dynamic viscosity:1.80 mPa*s (20℃),0.97 mPa·s (100℃)
Melting point(℃):-24
Boiling point(℃):202
Flash point(℃):91(Closed Cup),95(Open Cup)
Explosion limits:upper limit:9.5,lower limit:1.3
Density(g/cm3):1.03
Relative vapor density(air=1):3.42
Ignition point(℃):245
Saturated vapor pressure(hPa):1.33(40℃) ,0.32(20℃)
Octanol/water partition coefficient values:-0.46 (25℃)
Solubility:soluble in water
Bioconcentration factor:0.16
Technical indicators:
Item AR CP
Assay ≥98.5% ≥98.0%
Density(20℃),g/mL 1.030~1.035 1.029~1.035
Refractive index(n 20/D) 1.468~1.472 1.468~1.472
Related Products

Copyright ? Guangdong?Guanghua?Sci-Tech?Co.,?Ltd. GuangDong ICP No. 14033791-1
97久久香蕉国产线看观看| 精品久久久久久久免费人妻 | 亚洲和欧洲一码二码区别7777| 精品乱码卡1卡2卡3免费开放| 肉体裸交137日本大胆摄影| 级r片内射在线视频播放| 国产性猛交╳xxx乱大交| 中文无码久久精品| 国产精品无码av在线播放| 中文毛片无遮挡高潮免费 | 在线亚洲午夜片av大片| 少妇把腿扒开让我添| 奇米777四色在线精品| 久久综合九色综合国产| 日本熟妇人妻右手影院| 拍真实国产伦偷精品| 国产激情久久久久影院老熟女免费| 性色a码一区二区三区天美传媒 | 国产成人手机高清在线观看网站| 国产精品爽黄69天堂a| 国产免费人成视频在线播放播| 亚洲va欧美va人人爽| 97久久草草超级碰碰碰| 日本护士毛茸茸高潮| 国产精品无码a∨麻豆| 日本爽快片100色毛片| 在线永久免费观看黄网站| 亚洲av电影天堂男人的天堂| 乱子伦一区二区三区| 人妻无码一区二区三区四区| 国产无套精品一区二区| 国产精欧美一区二区三区| 国产精品一在线观看| 久久精品a一国产成人免费网站| 红杏亚洲影院一区二区三区| 精品少妇人妻av免费久久久| 日韩高清国产一区在线| 亚洲欧美乱综合图片区小说区 | 婷婷久久香蕉五月综合加勒比| 亚洲欧美在线观看| 日本极品少妇videossexhd|