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Potassium carbonate (also known as pearl ash or salts of tartar) is a white salt soluble in water which forms a strongly alkaline solution.

**Properties**
General
Name	Potassium carbonate
Chemical formula	K₂ CO₃
Appearance	White solid
Physical
Formula weight	138.2 amu
Melting point	1164 K (891 °C)
Boiling point	Decomposes at ?
Density	2.4 ×10³ kg/ mFor other uses of "metre" and "meter", see Metre (disambiguation). The metre is the basic unit of length in the International System of Units (SI: Systeme International d'Unites). It is defined as the length of the path travelled by light in absolute vacu³
Crystal structureIn mineralogy and crystallography, a crystal structure is a unique arrangement of atoms in a crystal. A crystal structure is composed of a unit cell a set of atoms arranged in a particular way, which is periodically repeated in three dimensions on a latti	?
Solubility	93.7 gFor other meanings of gram see gram (disambiguation). The gram (also spelt gramme is a unit of measurement of mass, and is defined in the SI system of units as one thousandth of a kilogram. See 1 E -3 kg for comparisons with other masses. The symbol for g in 100g water
Thermochemistry
Δ_fH⁰_liquidThe standard enthalpy of formation of a compound is the change of enthalpy that accompanies the formation of 1 mole of that substance from its component elements, at their standard states (the most stable form of the element or compound at 25 degrees Cels	-1123 kJThe joule (symbol J also called newton metre or coulomb volt is the SI unit of energy and work. The unit is pronounced to rhyme with "tool", and is named in honour of the physicist James Prescott Joule (1818-1889). 1 joule 1 N · 1 m 1 newton · 1 metre 1 k/ molThe mole (symbol: mol) is one of the seven SI base units and is commonly used in chemistry. It measures the amount of substance of a system and is defined as the amount of substance that contains as many elementary entities as there are atoms in exactly 0
Δ_fH⁰_solidThe standard enthalpy of formation of a compound is the change of enthalpy that accompanies the formation of 1 mole of that substance from its component elements, at their standard states (the most stable form of the element or compound at 25 degrees Cels	-1151 kJThe joule (symbol J also called newton metre or coulomb volt is the SI unit of energy and work. The unit is pronounced to rhyme with "tool", and is named in honour of the physicist James Prescott Joule (1818-1889). 1 joule 1 N · 1 m 1 newton · 1 metre 1 k/ mol
S⁰_solid	156 J/ mol· K
Safety
Ingestion	Severe irritation may result. Do not induce vomiting.
Inhalation	Acts as an irritant.
Skin	Acts as an irritant.
Eyes	Acts as an irritant
More info	Hazardous Chemical Database
SI units were used where possible. Unless otherwise stated, standard conditions were used. Disclaimer and references

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Potassium oxide	Potassium hydroxide	Potassium bicarbonate
Potassium carbonate	Potassium bromide	Potassium chlorate
Potassium valerate	Potassium sodium tartrate	Potassium in biology

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