Humidity indicator
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File:Humidity indicator before & after wetting.jpg
Humidity indicator on the lithium-ion battery of an mobile phone
top: before wetting
bottom: after wetting
(batery model: Samsung AB653039)
top: before wetting
bottom: after wetting
(batery model: Samsung AB653039)
A humidity indicator is a moisture-sensitive chemical that changes color when the indicated relative humidity is exceeded.
Some chemicals are:
- cobalt(II) chloride (toxic) (blue to pink)
- copper(II) chloride (toxic) (yellow to blue)
See also
External links
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