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This data is from the European Hydrogen Incidents and Accidents database HIAD 2.1, European Commission, Joint Research Centre.

Scientific Experiments Demonstration Gone Wrong (Role of Hydrogen Unclear)
Around 60 people gathered in a small theatre at a shopping centre to watch an array of scientific experiments, including a "small hydrogen explosion."Several children suffered second degree burns with children aged between five and 13 rushed to the nearest hospital.It remains unclear which chemicals were used in the experiments, with some reports claiming both hydrogen and alcohol-based chemicals were used.However a statement released by the Russian investigative committee examining the case said the science show had used "liquid nitrogen".The "flammable" substance was then ignited by the gas burner, resulting in the explosions.Meanwhile local authorities are investigating whether a breach in safety standards led to the incident.
Event Date
June 4, 2018
Record Quality Indicator
Region / Country
Event Initiating System
Classification of the Physical Effects
Nature of the Consequences
Causes
Cause Comments
It is unclear which chemicals were used in the experiments: hydrogen and/or alcohol-based chemicals. The statement released by the investigative committee examining the case said the science show had used "liquid nitrogen", which is obviously nonsense. The "flammable" substance was then ignited by the gas burner, resulting in the explosions.
Facility Information
Application Type
Application
Specific Application Supply Chain Stage
Components Involved
scientific apparatuses
Storage/Process Medium
Location Type
Location description
Inhabited Area
Operational Condition
Pre-event Summary
Public(including children) gathering at a scientific demonstration
Property Loss (onsite)
Affected component: bumper, rear quarter panel, wheel rim, door was damaged.Probably the hydrogen filling tube was also damaged and therefore needed replacement.
Lessons Learned
Lessons Learned
Unknown
Event Nature
Emergency Action
Unknown
Detonation
No
Deflagration
No
High Pressure Explosion
No
High Voltage Explosion
No
Source Category
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