ISSN 0862-5468 (Print), ISSN 1804-5847 (online) 

Ceramics-Silikáty 47, (4) 175 - 180 (2003)


AEROGEL NANOSCALE ALUMINIUM OXIDES AS A DESTRUCTIVE SORBENT FOR MUSTARD GAS
 
Štengl Václav 1, Bakardjieva Snejana 1, Maříková Monika 1, Šubrt Jan 1, Opluštil František 2, Olšanská Marcela 2
 
1 Institute of Inorganic Chemistry AS CR, 250 68 Řež, Czech Republic
2 Military Technical Institute of Protection Brno, Veslařská 230, 637 00 Brno, Czech Republic

Keywords: Aluminium oxide, Aerogels, Sonogels, Supercritical drying, Detoxification activity, Mustard gas (HD agents)
 

An autoclave hypercritical drying procedure has been used to prepare alumina(α-Al₂O₃) precursors form aluminium sec.butoxide C₁₂ H₂₇ Al O₃. Specific surface area was 1000 m²/g. The samples were characterized by X-ray diffraction, DTA-TG, scanning and transmission electron microscopy. The precursors were taken for experimental evaluation of their reactivity with Mustard Gas (Yperite, HD agents, Bis(2-chlorethyl)sulfid). Largest percentage of the conversion mustard into non-toxic products after the elapse of the reaction was 80 %.


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