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|  | Isopentane |  |  
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Molecular formula: C5H12 
Usage: isopentane can be mixed with n-pentane to make EPS and it also can be mixed with cyclopentane as a foaming agent for rigid urethane foam.
Physical features:  |  
| 
| Appearance 
 | colorless and transparent liquid, light aromatic odor |  
| Boiling point(101.3kPa) : 
 | 27.85oC |  
| Relative density(20oC) : 
 | 0.62 |  
| Flash point: | -56oC |  
| Self-burning temperature : | 420oC |  
| Explosion limit(vol) 
 | 1.4 -- 8.3% |  
| Fire hazard class 
 | class A for anti-fire class B for explosion-proof
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|  | specification |  |  
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| Item 
 | Figures |  
| Appearance 
 | Colorless and transparent liquid, no mechanical foregin bodies and suspending matter |  
| Density (g/cm3) 
 | 0.58-0.63 
 |  
| Isopentane (wt%) 
 | ≥95 |  
| n-pentane (wt%) 
 | ≤4.0 
 |  
| Sulfur (ppm) 
 | ≤1 
 |  
| Free water | No 
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