Event
- Event ID
- 955
- Quality
- Description
Hydrogen leaked from an analyser of a unit for the production of sodium chlorate. The hydrogen ignited. On-site staff isolate the leak very quickly, so that the amount of hydrogen released was negligible.
- Event Initiating system
- Classification of the physical effects
- Hydrogen Release and Ignition
- Nature of the consequences
- fire
- Macro-region
- Europe
- Country
- France
- Date
- Component involved
- gauge/instrument
- Failure mode
- rupture & ignition
- Initiating cause
- unknown
- Root causes
- Unknown
- Date entry in HIAD
- 01/01/2018
Facility
- Application
- Chemical industry
- Sub-application
- Inorganic chemicals products
- Hydrogen supply chain stage
- All components affected
Analyser, sodium chlorate plant
- Location type
- Unknown
- Location
- industrial area
- Operational condition
- Description of the facility/unit/process/substances
DESCRIPTION OF THE PROCESS
Sodium chlorate is produced by the electrolysis of a hot sodium chloride (NaCl) solution according to the formula:
NaCl + 3 H2O → NaClO3 + 3 H2Hydrogen is a by-product of this process.
Emergency & Consequences
- Number of fatalities
- 0
- Number of injured persons
- 0
- Post-event summary
Since the leak was quickly isolated, the amount of hydrogen released was negligible.
This incident did not cause any personal injury or material damage and did not have a
significant impact on the environment.- Emergency action
The emergency plan was triggered and the internal security teams intervened. On-site staff isolate the leak.
In-depth data
- Release type
- gas
- Involved substances (% vol)
- H2 100%
- Probable IGNITION SOURCE
References
- Sources categories
- ARIA
- Reference & weblink
Event no 35501 description of the French database ARIA (accessed December 2020)
