Humidity indicator: Difference between revisions

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{{#REDIRECT [[Humidity}} indicator card]]

{{Cleanup|date=August 2010}}

{{Rcat shell|

[[File:Humidity indicator before & after wetting.jpg|thumb|left|380px|Humidity indicator on the lithium-ion battery of an mobile phone

{{R to related topic}}

<br/>top: before wetting

}}

<br/>bottom: after wetting

<br/>(batery model: Samsung AB653039)]]<!-- Suitable for the mobile phone: Samsung SGH-U800-->

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 ==

* [[Moisture analysis]]

* [[Humidity indicator card]]

* [[Desiccant]]

== External links ==

*[http://www.healthocrates.com/Chemical-Sensitive/ Chemical Sensitive]

{{Chem-stub}}

{{DEFAULTSORT:Humidity indicator}}

[[Category:Desiccation]]