Potassium hydroxide

Properties

General
Name	Potassium hydroxide
Chemical formula	KOH
Appearance	White solid
Physical
Formula weight	56.1 amu
Melting point	679 K (406 °C)
Boiling point	1593 K (1320 °C)
Density	2.0 ×103 kg/m3
Crystal structure	?
Solubility	119 g in 100g water
Thermochemistry
ΔfH0gas	-232 kJ/mol
ΔfH0liquid	-415.6 kJ/mol
ΔfH0solid	-425 kJ/mol
S0solid	79 J/mol·K
Safety
Ingestion	Very dangerous, may cause permanent GI damage, even death.
Inhalation	Very dangerous, high doses may cause serious injury. Long-term hazards also known.
Skin	Causes burns, ranging from a rash up to deep ulcers.
Eyes	As for skin, may cause irreversible damage.
More info	Hazardous Chemical Database (http://ull.chemistry.uakron.edu/erd/chemicals/7/6963)
SI units were used where possible. Unless otherwise stated, standard conditions were used. Disclaimer and references

Potassium hydroxide is a chemical compound with the formula KOH. It is sometimes known as caustic potash. It is a very alkaline compound used in agriculture to correct the pH of acidic soils. It can also be used as a fungicide or even a herbicide.