人人湿人人乐99,久久久久久久久久网站,成人 国产 另类,日韩国产白浆露出,一人香蕉尹人一线网站,亚洲第一在线一区,青青草视频在线1区,色播插久久,亚洲精品五码视频

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
南京市| 巴里| 周至县| 平顺县| 台中县| 衢州市| 洮南市| 临武县| 永登县| 白山市| 霍州市| 德钦县| 香港| 和龙市| 廊坊市| 甘孜| 哈尔滨市| 乌拉特后旗| 全州县| 社旗县| 商都县| 兴山县| 青铜峡市| 泰宁县| 磴口县| 长乐市| 和硕县| 蚌埠市| 平南县| 临沭县| 上饶市| 石河子市| 兴国县| 贡嘎县| 安多县| 灵宝市| 西宁市| 彰化县| 井研县| 山东省| 来宾市|