Experimental investigation of the fire extinguishing capability of ferrocene-containing water mist

This study focuses on the fire-suppression capabilities and corrosive properties of ferrocene dispersions. The motivation behind the present study was to develop a high-performance, phosphorus-free fire suppressant. Aqueous dispersions containing micron-sized ferrocene particles and surfactants were...

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Bibliographic Details
Published in:Fire safety journal 2016-07, Vol.83, p.90-98
Main Authors: Koshiba, Yusuke, Okazaki, Shinji, Ohtani, Hideo
Format: Article
Language:English
Subjects:
Additive
Aqueous dispersion
Corrosion
Dispersions
Extinguishing
Extinguishing time
Ferrocene powder
Ferrocenes
Fire protection
Fire suppression
Fire-extinguishing agent
Fires
Pitting (corrosion)
Surfactants
Water mist
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Summary:This study focuses on the fire-suppression capabilities and corrosive properties of ferrocene dispersions. The motivation behind the present study was to develop a high-performance, phosphorus-free fire suppressant. Aqueous dispersions containing micron-sized ferrocene particles and surfactants were prepared using sonication techniques. In this study, Triton X-100 (TX), Noigen TDS-80 (NT), Tween 60 (T60), and Tween 80 (T80) were used as surfactants. Suppression experiments involving pool fires clearly indicated that aqueous ferrocene dispersions containing TX and micron-sized ferrocene with a d50=16.9μm exhibit shorter extinguishing times than a conventional wet chemical. Corrosion trials using steel plates immersed in ferrocene dispersions containing TX confirmed that there was no pitting corrosion, implying that ferrocene dispersions containing TX do not present a corrosion risk. •The extinguishing and corrosive properies of ferrocene dispersions are studied.•The suppression capability is negatively correlated with the ferrocene particle size.•The suppression efficiency also depends on surfactant used.•The ferrocene dispersions containing triton X-100 do not present a corrosion risk.
ISSN:0379-7112
DOI:10.1016/j.firesaf.2016.05.006