A novel environmental-friendly and safe unpacking powder without magnesium, aluminum and sulphur for fireworks.

Authors:
Zhiyue Han
Zhiyue Han
State Key Laboratory of Explosion Science and Technology
Qi Jiang
Qi Jiang
School of Medicine
United States
Zhiming Du
Zhiming Du
Institute of Clinical Pharmacy
Yue Yu
Yue Yu
Tianjin Medical University Cancer Institute and Hospital
Singapore
Yupeng Zhang
Yupeng Zhang
Waseda University
Japan
Gong Li
Gong Li
School of Physical and Mathematical Sciences
Singapore
Yue Sun
Yue Sun
Key Laboratory of Pesticide and Chemical Biology (CCNU)
China

J Hazard Mater 2019 Apr 2;373:835-843. Epub 2019 Apr 2.

State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, China.

A novel environmental-friendly unpacking powder for fireworks which has no sulfur, no magnesium, no aluminum or their alloys has been prepared in this study: potassium perchlorate (75%), potassium hydrogen terephthalate (13%), micronano porous silicon (9%), carbon (2%), ferrocene (1%). The PM2.5 and PM10 were collected by the ambient air particulate sampler, and the gas product was tested with a smoke analyzer and gas chromatograph to investigate its environmental-friendly performance. The detonation radius was measured by similar triangulation method, and p-t curves were measured in a closed bomb to investigate its practicality. The heat of combustion, sensitivity and hygroscopicity of the formula were measured according to China fireworks industry standard to verify the safety of the novel unpacking powder. The test results suggest that new unpacking powder using micronano porous silicon can effectively reduce the PM content and the product does not contain SO, so it can be applied to export.

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Source
http://dx.doi.org/10.1016/j.jhazmat.2019.04.001DOI Listing
April 2019

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