Explanatory notes
… Master alloys Alloys containing with other elements more than 10 % by weight of copper, not usefully malleable … roasting. The matte is treated in a converter to eliminate most of the iron and sulphur and produce “blister copper” … resistance to corrosion, used for springs of many types, as moulds for plastics, as resistance welding electrodes, and …Legal note
… Master alloys Alloys containing with other elements more than 10 % by weight of copper, not usefully malleable and commonly used as an additive in the manufacture of other … However, copper phosphide (phosphor copper) containing more than 15 % by weight of phosphorus falls in …
