5052 txhuas phaj muaj tooj liab, cib, hlau thiab lwm yam impurities uas cuam tshuam rau saum npoo ntawm oxide zaj duab xis: tooj liab yuav ua rau cov oxide zaj duab xis tig liab, ua rau cov electrolyte tsis zoo, thiab nce oxidation tsis xws luag; silicon yuav ua rau oxide zaj duab xis grey, tshwj xeeb tshaj yog thaum cov ntsiab lus Thaum nws tshaj 4.5%, qhov cuam tshuam yog pom tseeb dua.
Vim nws tus yam ntxwv, hlau yuav muaj nyob rau hauv daim ntawv ntawm cov pob dub tom qab anodization. Tsis tas li ntawd, muaj lwm yam impurities nyob rau hauv 5052 txhuas phaj uas cuam tshuam rau cov tsos ntawm oxide zaj duab xis: 1-2% aluminium alloy hloov xim av-xiav tom qab oxidation. Raws li cov ntsiab lus ntawm manganese nyob rau hauv aluminium nce, xim nto tom qab oxidation hloov ntawm xim av mus rau xiav. Hloov xim rau xim av tsaus. Aluminium alloys muaj 0.6-1.5% silicon tig grey tom qab oxidation, thiab thaum muaj 3-6% silicon, lawv tig dawb-grey.