日本不卡中文字幕一区二区,国产原创一区,久久国产视频一区,国产一区二区在线观看免费,欧美日韩综合,日韩欧美在线不卡,www.久草视频

Product name: heptane 
CAS number: 142-82-5
Molecular formula: C7H16
Chemical properties:
Appearance and Property: Colorless, odorless transparent liquid
Density: 0.71 g / mL at 20 ° C 
Melting point: −91 ° C (lit.) 
Boiling point: 98 ° C (lit.) 
Flash point: 30 ° F 
Refractive index: n20 / D 1.397 
Water solubility: practically insoluble 
Storage conditions: storeroom ventilated and dry at low temperature, stored separately from oxidants and acids. 
Steam pressure: 45.2mmHg at 25 ° C 
steam Density: 3.5 (vs air)
Product Uses: It is mainly used as the standard and solvent for octane measurement, as well as for organic synthesis, preparation of experimental reagents, pharmaceutical intermediates, etc.
Packaging, storage and transportation: sealed with iron bucket or tank car. Storage should be placed in a dry and cool place, and the warehouse should be provided with ventilation facilities to avoid contact with water to prevent hydrolysis. Transportation should comply with the provisions of the People's Republic of China on the transportation of dangerous chemicals by roads and railways.