If you believe the advertising, glass corrosion is a direct consequence of using dishwashers and the use of the wrong detergent or rinse aid. In any case, glass corrosion is not a new phenomenon and is not limited solely to glasses that are cleaned in the dishwasher.
What is glass corrosion?
As corrosion in Jarglass one refers to the structural weathering of the surface. The terms glass rust and glass burn also describe this process. This refers to both chemical and physical influences that lead to the roughening of surfaces that are normally extremely smooth in glass. This effect is also observed in glass objects that have been underground for centuries. The clouding of the glasses is partly due to microscopically small destruction of the material
, which sometimes cannot even be felt with the fingers. Another consequence of corrosion in glass objects that have been in the ground can be a dirty-looking, rainbow-colored surface.
What happens to the glass?corrosionDuring glass corrosion, the oxides of various elements such as barium or boron, calcium or potassium and, of course, sodium are dissolved out. This also explains the use of the term , which describes the process of rusting
.
- How can glass corrosion be prevented?On the one hand, the composition of the glass can reduce glass corrosion. For this purpose, for example, aluminum oxide, silicon dioxide and zirconium oxide are added
- . When adding boron trioxide, a content that is as low as possible is important. If the boron trioxide content is too high, glass corrosion can increase, which is actually desired in other chemical processes (borosilicate glass). This also makes it clear why some glasses are more affected and others less.On the other hand, during the cleaning processcorrosion the or favoredreduced
- can be. The ion content, the pH value and the temperature of the cleaning liquid are primarily responsible for this. Softer water, similar to acid rain on window glass, has a rather negative effect. The influence of the cleaning chemistry is significantly lower than the influence of the manufacturing chemistry.A third form of impact causes glass corrosion: This happens when the glasses are not carefully loaded into the dishwasher and can touch each other slightly during the cleaning process. Then the surfaces are also damaged. Incidentally, this is the clearest difference to hand washing,
where usually no or very little glass corrosion is noticeableThis household tip was kindly provided to us by geschirrspueler.eu
Read also: .
Image by Janine, meinhaushalt.at
2 comments
Comments are closed.