| item |
index |
| appearance |
colorless transparent liquid, no insoluble water and mechanical impurities |
| scope of distillation range ℃ |
79.6 ~ 80.5 |
| density（20℃），kg/m3 |
0.876 ~ 0.881 |
| content ≥ |
99.6% |
| crystallization point ℃ ≥ |
5 |
| bromine number, g/100ml ≤ |
0.42 |
| carbon disulfide g/100ml ≤ |
0.07 |
| thiophene g/100ml ≤ |
0.1 |
| water |
no insoluble water visible at room temperature (18 ~ 25 ℃) |
| acid colorimetric |
the acid layer is not darker than the standard solution containing 0.1g potassium dichromate in 1000ml dilute acid |
| neutral test |
neutral |
| evaporation residue mg/100ml≤ |
5 |
packaging, transportation and storage:
the product must be put into clean, dry tank car or iron bucket to ensure good sealing. store in a cool and ventilated place, away from fire and heat source, should be stored separately with oxidant. if the storage tank is used, the storage tank area shall be marked with no fire, the flow rate shall be controlled and the grounding device for electrostatic discharge shall be installed. handle with care to prevent packing damage.