Potassium hydroxide

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Properties

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General

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Name

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Potassium hydroxide

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Chemical formula

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KOH

Related Topics:
K - OH

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Appearance

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White solid

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Physical

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Formula weight

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56.1 amu

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Melting point

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679 K (406 °C)

Related Topics:
K - °C

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Boiling point

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1593 K (1320 °C)

Related Topics:
K - °C

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Density

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2.0 ×103 kg/m3

Related Topics:
Kg - M

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Crystal structure

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?

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Solubility

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119 g in 100g water

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Thermochemistry

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ΔfH0gas

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-232 kJ/mol

Related Topics:
KJ - Mol

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ΔfH0liquid

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-415.6 kJ/mol

Related Topics:
KJ - Mol

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ΔfH0solid

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-425 kJ/mol

Related Topics:
KJ - Mol

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S0solid

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79 J/mol·K

Related Topics:
J - Mol - K

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Acid - base properties

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pKb

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0.5 http://www.chembuddy.com/?left=BATE&right=dissociation_constants

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Safety

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Ingestion

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Very dangerous, may cause permanent GI damage, even death.

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Inhalation

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Very dangerous, high doses may cause serious injury. Long-term hazards also known.

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Skin

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Causes burns, ranging from a rash up to deep ulcers.

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Eyes

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As for skin, may cause irreversible damage.

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More info

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Hazardous Chemical Database

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SI units were used where possible. Unless otherwise stated, standard conditions were used.

Related Topics:
SI - Standard

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Disclaimer and references

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The chemical compound potassium hydroxide, (KOH) sometimes known as caustic potash, potassa, potash lye, and potassium hydrate, is a metallic base. 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 an herbicide.

Related Topics:
Chemical compound - K - OH - Lye - Metallic base - Alkaline - Agriculture - PH - Fungicide - Herbicide

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