Water soluble glass as corrosion protector in dishwashing machines
摘要
A zinc-containing, water-soluble glass composition comprising from 41 to 54 mole % of P<SUB>2</SUB>O<SUB>5</SUB>, 10 to 30 mole % of alkali oxides, up to 5 mole % of SO<SUB>3 </SUB>and up to 25 mole % of ZnO.
