1、 Product overview
Name | N-pentane | CAS: | 106-97-8 |
Synonymous | Pentane | Chinese name | 正戊烷 |
Molecular formula | C5H12;CH(CH2)3CH3 | Molecular weight | 72.15 |
Melting point | -129.8℃ | Boiling point | 36.1℃ |
Flash point | -40℃ | Density | 0.63 |
Solubility | Slightly soluble in water, soluble in ethanol, ether, acetone, benzene, chloroform, etc | Stable explosion limit | 1.7%-9.8% |
Appearance | Colorless liquid with faint mint fragrance | Danger marking | 3.1 |
2、 Quality index
Item | Index | Experimental method |
Density(20℃)(Kg/m3) | 615-630 | GB/T 1884- |
Sulfur content(μg/ml)≤ | 10 | SH/T 0253 |
Mechanical impurities and moisture | none | Visual inspection |
Copper corrosion(20℃,3h)grade≤ | 1 | GB/T 5096 |
Water soluble acid base | None | GB/T 259 |
Total pentane content %≥ | 98 | SY/T 0542 |
C6 % | 1 | SY/T 0542 |
Evaporation residue(mg/100ml)≤ | 10 | GB/T 3209 |
Br index(mg/100g)≤ | 100 | GB/T 11136 |
3、 Purpose:
1. Isopentane can be prepared by isomerization under certain conditions; It is also used as extraction solvent, ideal foaming agent for polystyrene and lubricant for liquid air machine; For low 2 Thermometers, artificial ice, anesthetics, synthetic pentanol, etc.
4、 Precautions
1. Pentane foaming agent refers to the n-pentane and isopentane foaming agent in the national standard. The n-pentane and isopentane in the product are produced separately during the production of the product and meet the product quality index in Item 2. They can be used as foaming agent alone or mixed into a specific proportion of foaming agent according to the requirements of customers, but they all meet the above quality requirements. 2. Pentane foaming agent is flammable. Vapor and air can form an explosive mixture. It is very easy to burn and explode in case of open fire and high heat. Therefore, the storage place should be stored separately from oxygen, compressed air and oxidant. It should be stored in a cool and ventilated warehouse. It should not be close to the heat source. It is strictly prohibited to be exposed to the sun and rain. There shall be sufficient fire-fighting measures for storage.