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$6.50
The metal equipment in a studio is corroded by the vapours, too. Etching without toxic fumes and aerosols is the main advantage of using a copper sulphatesolution. When etching aluminium or zinc with copper sulphate a minute amount of hydrogen gas is produced; more with aluminium, less with zinc.
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School Art Supplies acknowledges the Traditional Custodians of country throughout Australia. We pay respects to their elders past, present and emerging and extend that respect to all Aboriginal and Torres Strait Islander peoples.
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