| 摘要 |
The invention relates to a meltable composition for cleaning encrusted metals. A bath is made up in the form of a melt from a composition comprising 2-20% of carbonate ions (CO3<-2>), 20-34% of hydroxide ions (OH<->), 6-20% of nitrate ions (NO3<->), 25-45% of sodium ions(Na+), 20-40% of potassium ions (K<+>) and up to 10% of chloride ions (Cl<->). The starting formulation preferably has the following composition: 51% of sodium hydroxide (NaOH), 22% of potassium nitrate (KNO3), 17% of potassium chloride (KCl) and 10% of potassium carbonate (K2CO3). |
