Humidity indicator

Humidity and hygrometry
File:Cloud forest mount kinabalu-withHygrom.jpg
Specific concepts
Dew point Dew point depression Psychrometrics
General concepts
Air Concentration Density Dew Evaporation Humidity buffering (Atm.) Pressure Liquid water Avogadro's law Nucleation Thermodynamic equilibrium
Measures and instruments
Heat index Sat. vap. density Mixing ratio Water activity H. indicator card Hygrometer Dry/Wet-bulb temperature

A humidity indicator is a moisture-sensitive chemical that changes color when the indicated relative humidity is exceeded.

Chemicals

Some chemicals are:

• cobalt(II) chloride (toxic) (blue to pink)
• copper(II) chloride (toxic) (yellow to blue)

File:Humidity indicator before & after wetting.jpg

Humidity indicator on the lithium-ion battery of a mobile phone
top: before wetting
bottom: after wetting
(battery model: Samsung AB653039)

See also

• Moisture analysis
• Humidity indicator card
• Desiccant

This article "Humidity indicator" is from Wikipedia. The list of its authors can be seen in its historical and/or the page Edithistory:Humidity indicator. Articles copied from Draft Namespace on Wikipedia could be seen on the Draft Namespace of Wikipedia and not main one.

📰 Article(s) of the same category(ies)

• Unquadtrium
• Crisscross method
• Carbylamine-choline-chloride
• 3-Methylcyclopropene
• Unbiennium
• Sodium hexachlororhodate(III)
• Reduced gas

---