The product is prepared by distillation and extraction, using CS fraction coming from ethylene cracking as raw materials. Chemical name：1,3-pentadiene, including trans-1,3-pentadiene and cis-1,3-pentadiene, also known as Piperylene . Formula：CH3CH=CHCH=CH2
Chemical formula：CSH8
| Item | Unit | Indicators | Test method | |
| superior products | on-specgrade | |||
| Appearance | Clear and transparent liquid, no impurities | Bynaked eyes* | ||
| Color（Pt-Co) | number | ≤50 | -- | GB/T 3143 |
| Piperylene | wt% | ≥67 | ≥60 | SH/T 1790 |
| Trans-1,3-pentadiene | wt% | ≥42 | ≥38 | |
| dcpd+cpd | wt% | ≤1 | ≤1.5 | |
| Water | wt% | ≤0.025 | ≤0.025 | SH/T 0246 or GB/T 6283 |
| * Put 50ml~60ml sample in 100ml colorimetric tube which is clean and dry. And view under natural light. | ||||
Storage in steel tank. Use steel tank wagon for transportation.
Away from sunshine and rain. The containers must be clean and dry.
Must comply with the relevant regulation of dangerous goods transportation issued by the transportation authority.
Mainly used to produce CS hydrocarbon resins and crosslinkers.
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