Types of Pentane and Pentane Blowing Agents
Pentanes include n-pentane, isopentane and cyclopentane. The molecular formula is C5H12 and the molecular weight is 72.15. Cyclopentane, also known as “pentamethylene”, is a cycloalkane with the molecular formula C5H10. Molecular weight 70.13. flammable liquid.
The high-purity n-pentane produced by Junyuan Petroleum Group has a purity of up to 99.5%, a n-butane content of less than 0.01%, an isopentane content of less than 0.2%, and a C6 content of less than 0.3%.
N-pentane and isopentane are separated from oilfield light hydrocarbons through high-efficiency rectification. N-pentane can be used as a desorbing agent in the dewaxing process of molecular sieves, and it can be used as a high-efficiency blowing agent for expandable polystyrene after blending with isopentane in different proportions to meet the requirements of different foaming degrees. It can be mixed with cyclopentane, etc. as a polyurethane foaming agent. Isopentane can be used as blowing agent for expandable polystyrene, foaming agent for polyurethane foam system, deasphalting solvent, solvent for catalyst in polyethylene production, etc. Generally blended with cyclopentane. Used as rigid polyurethane foam blowing agent. Cyclopentane (molecular formula C5H10) is a saturated hydrocarbon with a melting point of -94.4°C and a boiling point of 49.3°C. It is stable and insoluble in water, but soluble in most organic solvents such as ethanol, ether, benzene, carbon tetrachloride, and acetone. It is used as a solvent, as a foaming agent (instead of Freon) in the preparation of polyurethane foam, and as a standard substance for chromatographic analysis.
CAS: 287-92-3
Molecular formula: C5H10
Molecular weight: 70.13
Boiling point: 50℃
Melting point: -94-49℃
Chinese name: cyclopentane, pentamethylene, cyclopentamethylene
English name: ,Cyclopentane, pentamethylene, Cyclopentane,HPLC Grade, Cyclopentan, Cyclopcntan
Nature description:
Colorless liquid, melting point -93.9°C, boiling point 49.26°C, relative density 0.7460 (20/4°C), refractive index 1.4068, flash point -37°C. It can be miscible with organic solvents such as alcohol and ether, but insoluble in water.
production method:
Cyclopentane is a component of petroleum ether with a boiling point range of 30-60°C, the content is generally 5%-10%, and it is distilled at atmospheric pressure with a reflux ratio of 60:1 in a tower with a height of 8m. Isopentane and n-pentane can be further fractionated to obtain cyclopentane with a purity of more than 98%. Cyclopentane can also be prepared by reduction of cyclopentanone or catalytic hydrogenation of cyclopentadiene.
Uses:
It is used as a solvent for solution polymerization of polyisoprene rubber and a solvent for cellulose ether, as a substitute for freon for insulation materials in refrigerators and freezers and as a foaming agent for other hard PU foams, and as a reference material for chromatographic analysis.
The pentane foaming agent series products produced by Junyuan Petroleum Group are mainly composed of n-pentane, isopentane and cyclopentane. The total content of pentane is over 98%. It can be blended with cyclopentane into about 30 different types of products, which are mainly used as plastic foaming agents, and can also be used as industrial solvents, extractants and chemical raw materials.