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Clean Hydrogen Partnership

Explosion in a cadmium sulphate production unit

Event

Event ID
489
Quality
Description

Hydrogen as product of the reaction process ignited and exploded.

Event Initiating system
Classification of the physical effects
Hydrogen Release and Ignition
Nature of the consequences
Macro-region
North America
Country
United States
Date
Component involved
reactor / oven / furnace / test chamber
Failure mode
internal explosion
Initiating cause
unknown
Root causes
Unknown
Date entry in HIAD
28/01/2026

Facility

Application
Chemical industry
Sub-application
CdS production
Hydrogen supply chain stage
Location type
Confined
Location
unknown
Operational condition
Description of the facility/unit/process/substances

Cadmium sulphate hydrate can be prepared by the reaction of cadmium metal or its oxide or hydroxide with dilute sulfuric acid. The process used appears starting from the oxide form.
CdO + H2SO4 → CdSO4 + H2O
Cd + H2SO4 → CdSO4 + H2

Emergency & Consequences

Number of fatalities
0
Number of injured persons
0
Currency
US$
Property loss (onsite)
5.000

In-depth data

Probable IGNITION SOURCE
Explosion type

References

Sources categories
Zalosh
Reference & weblink

Table II - Industrial Incidents of Appendix A of Zalosh and Short
COMPARATIVE ANALYSIS OF HYDROGEN FIRE AND EXPLOSION INCIDENTS
Quarterly Report No. 2 for Period December 1, 1977 - February 28, 1978
https://www.osti.gov/biblio/6566131
(accessed September 2020)