Magnesium powder, based on the particles size will quickly react with phosphoric acid/water and will generate enough hydrogen to ignite. A suitable reaction set-up
could have prevented this incident. Clearly, shows lack of safety training and proper resources to conduct the research.
Fine particles of magnesium can also become pyrophoric.
Tilak
From: ACS Division of Chemical Health and Safety <DCHAS-L**At_Symbol_Here**PRINCETON.EDU>
On Behalf Of Monona Rossol
Sent: Thursday, February 14, 2019 8:05 AM
To: DCHAS-L**At_Symbol_Here**PRINCETON.EDU
Subject: Re: [DCHAS-L] Two follow up stories on December lab explosion in China
Interesting. It looks like Communist and Capitalist systems in universities suffer from the same two problems.
1) Lack of mandated, documented, and regular safety training of the students and faculty
2) Failure to require time-consuming and expensive training because party bosses and university administrators are appointed in the mistaken assumption that they
can run science departments without understanding science.
Monona
-----Original Message-----
From: DCHAS Membership Chair <membership**At_Symbol_Here**DCHAS.ORG>
To: DCHAS-L <DCHAS-L**At_Symbol_Here**PRINCETON.EDU>
Sent: Thu, Feb 14, 2019 7:59 am
Subject: [DCHAS-L] Two follow up stories on December lab explosion in China
Negligence blamed in deadly laboratory explosion on campus
Serious dereliction of duty led to the deaths of three students in a laboratory explosion at Beijing Jiaotong University in December, the Beijing Emergency Management
Bureau said on Wednesday.
A joint investigation involving multiple government departments found that the students purchased and stored dangerous chemicals and carried out risky experiments
in violation of regulations. University personnel also failed to oversee and manage the safety of laboratories and scientific research projects, investigators said.
On Dec 26, students from the urban planning and environmental engineering department were doing sewage treatment experiments in a laboratory building on the university's
eastern campus. The explosion killed three students who were taking part.
The investigation of the blast was coordinated by the municipal Emergency Management Bureau, Public Security Bureau and Fire Services Department.
It found that during the stirring of magnesium powder and phosphoric acid in a mixer, the hydrogen generated in the hopper was ignited by a spark caused by metal
friction in the mixer and then exploded. That in turn caused a further magnesium dust explosion, engulfing the rest of the magnesium powder and other combustibles nearby. The three students died at the scene, it said.
Public security authorities said Li Desheng, director of the research project, and Zhang Qiong, manager of the laboratory, will be investigated for criminal negligence.
The Ministry of Education and Beijing Jiaotong University punished 12 officials from the university, including Cao Guoyong, its Party chief, Ning Bin, its president
and Guan Zhongliang, its vice-president.
The authorities have ordered corrections in the production, sale, transportation and storage of dangerous chemicals, with comprehensive safety inspections at every
stage.
All universities in Beijing have been asked to carry out safety inspections, clarify experiment regulations, improve the safety management system of laboratories
and strengthen personnel training in order to prevent other incidents.
A Beijing University held 12 senior officials accountable for an explosion at a lab that killed three students in December.
The Beijing Jiaotong University imposed administrative penalties for the accident on officials including the university's Communist Party chief, president and a vice
president. Two people in charge of the lab face criminal charges, according the government-backed newspaper Beijing Daily.
The blast occurred on the morning of Dec. 26 when three graduate students from the university's urban planning and environmental engineering department were working
on a wastewater treatment experiment in a science laboratory. Investigators from the capital government found flaws in safety management of the lab, which was full of flammable materials that exploded upon contact with air, according to the report.
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