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Copper(II)chloride
Some people find it difficult to breathe in environments with a high level of humidity, for instance because they suffer from asthma.
Anderen krijgen het benauwd en beginnen te hyperventileren met als resultaat dat ze zich zwak voelen en zich niet meer kunnen concentreren. De juiste vochtigheidsgraad is heel belangrijk in ons leven, maar in de meeste gevallen zijn we er ons niet van bewust. Er bestaan meters, maar niemand gebruikt ze. Door het vochtigheidsniveau in kleur te laten zien, zijn we ons meer bewust van de verandering van vochtigheid in onze omgeving. Zo kunnen we sneller ingrijpen. We vertrouwen onze perceptie meer dan cijfers en meetinstrumenten.
Others feel short of breath and begin to hyperventilate, with the result that they feel weak and can no longer concentrate. The right humidity level is very important in our lives, but in most cases we are not even aware of it. There are meters, of course, but no one uses them. By showing the humidity level in colour, we become more aware of changes in the moisture in our surroundings. This enables us to take action sooner. We trust our perception more than we do figures and measuring instruments.
Salvatore Caltabellotta created a wallpaper made of fibreglass that incorporates a layer of copper(II) chloride. If the paper becomes moist, the colour pigments in it change and the wallpaper changes colour. The material can be used in various forms: wallpaper is the most obvious, but it can also be used as a folding screen.
Copper(II) chloride is a chemical compound with the chemical formula CuCl2. It is a light brown solid that gradually absorbs moisture to form a bluegreen dihydrate. Copper(II) chloride is the most common copper compound, after copper sulphate. As humidity rises, the copper(II) chloride turns a light-blue colour. As the humidity falls, it returns to its yellow/brown tint.
