Keʻokeʻo ʻālohilohi i ka maka i waena o ka metala cubic, palupalu, ductility lua wale nō i ke gula, he mea hoʻokele maikaʻi o ka wela a me ka uila; ʻAʻole ia e hana me ka wai a me ka oxygen ea, a lilo i ʻeleʻele ke ʻike ʻia i ka ozone, hydrogen sulfide a me ka sulfur; ʻAʻole hiki ke hoʻoheheʻe ʻia i loko o ka waika nitric dilute a me ka waika sulfuric wela. Hiki ke hoʻoheheʻe ʻia ka waiuma wai i ka ʻili a hoʻoheheʻe ʻia i loko o ka molten alkali hydroxide, peroxide alkali a me alkali cyanide i ka lewa a i ʻole ke alo o ka oxygen; ʻO ka hapa nui o nā paʻakai kālā he maʻalahi i ka māmā a ʻaʻole hiki ke hoʻoheheʻe ʻia i nā ʻakika he nui.