The Choice of Cleaning Products

There is uo such thiug as a universal cleaning agent capable of cleaning all metallic surfaces such as ordinary steel, stainless steel, aluminium or copper. In fact, each metal (or alloy) reacts differently to acidic or alkaline media that form most cleaning products. For example, steel resists nitric acid poorly, but resists sodium hydroxide or sodium carbonate solutions well, whereas the situation is the inverse for aluminium. 

Only the first of these aspects will be discussed here. 

Cleaning aluminium has the same goal as cleaning other metallic surfaces  

Aluminium and alumina are amphoteric, i.e. can be attacked both by acids, mainly hydracids such as HF and HCl, and by bases such as sodium hydroxide (NaOH), potassium hydroxide (KOH) and sodium carbonate (Na2C03). For this reason, the dissolution rate 

Cleaning products based on alkahne products such as sodium hydroxide, potassium hydroxide, sodium carbonate, even if containing corrosion inhibitors such as sodium sihcate, should be used with precaution, because 

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