Event
- Event ID
- 862
- Quality
- Description
- A triangle flask exploded during a science-class experiment where diluted hydrochloric acid was made to react with zinc to generate hydrogen, at a junior high school.
Injures were caused by glass debris flown, five very lightly injured pupils were sent to hospital.
Probably hydrogen entered in contact with oxygen because of a wrong experiment procedure, resulting in ignition and explosion. - Event Initiating system
- Classification of the physical effects
- Hydrogen Release and Ignition
- Nature of the consequences
- Macro-region
- Asia
- Country
- Japan
- Date
- Root causes
- Root CAUSE analysis
- [1st] Human factor [2nd] Unsuitable action/operation [3rd] Operation mistake/Work mistake
Facility
- Application
- Laboratory / R&d
- Sub-application
- School chemical lab
- Hydrogen supply chain stage
- Hydrogen Storage (No additional details provided)
- Location type
- Unknown
- Operational condition
Emergency & Consequences
- Number of injured persons
- 5
- Number of fatalities
- 0
- Post-event summary
- Five pupils were sent to hospital with very lightly injuries, caused by glass debris flown during the explosion.
Event Nature
- Release type
- gas
- Involved substances (% vol)
- H2 100%
- Presumed ignition source
- Not reported
References
- Reference & weblink
Orignal source lost. RISCAD is closed.<br />
http://www.aist.go.jp/RIODB/RISCAD<br />
(not accessible anymore
JRC assessment
- Sources categories
- RISCAD
