Revision as of 08:13, 21 March 2023 edit Emmacrabgrass (talk \| contribs) 27 edits Reverted vandalism Tags: Manual revert Visual edit Mobile edit Mobile web edit ← Previous edit		Revision as of 05:56, 1 April 2023 edit undo Jpgordon (talk \| contribs) Checkusers, Administrators 82,024 edits →Types: and now aluminum is more expensive than zinc. Tag: Visual edit Next edit →
Line 39: In principle, any reactive metal could be used instead of aluminum. This is rarely done, because the properties of aluminum are nearly ideal for this reaction: * It is by far the cheapest of the highly reactive metals. For example, in December 2014, tin was US$19,829/metric ton, zinc was US$2,180/t and aluminum was US$1,910/t.<ref>{{cite web \|url=http://www.indexmundi.com/commodities/ \|title=Commodity Prices \|publisher=IndexMundi \|access-date=12 February 2015}}</ref> * It forms a [[passivation (chemistry)\|passivation]] layer making it safer to handle than many other reactive metals.<ref>{{cite journal\|doi=10.1023/B:JMSC.0000044879.63364.b3\|title=The role of the Al<sub>2</sub>O<sub>3</sub> passivation shell surrounding nano-Al particles in the combustion synthesis of NiAl\|year=2004\|last1=Granier\|first1=J. J.\|last2=Plantier\|first2=K. B.\|last3=Pantoya\|first3=M. L.\|author3-link=Michelle Pantoya\|journal=Journal of Materials Science\|volume=39\|issue=21\|pages=6421\|bibcode = 2004JMatS..39.6421G \|s2cid=137141668}}</ref> * Its relatively low [[melting point]] (660 °C) means that it is easy to melt the metal, so that the reaction can occur mainly in the liquid phase, thus it proceeds fairly quickly.

Thermite: Difference between revisions