Carnallite
a white hydrous chloride of potassium and magnesium, KMgCl 3 ⋅6H 2 O, used chiefly as a source of potassium and magnesium.
Historical Examples
At the point K we have the highest temperature at which carnallite can exist with magnesium chloride in contact with solution.
The Phase Rule and Its Applications Alexander Findlay
What weight of carnallite is necessary in the preparation of 500 g. of magnesium?
An Elementary Study of Chemistry William McPherson
Fig. 113 is a diagrammatic sketch of the model for carnallite looked at sideways from above.
The Phase Rule and Its Applications Alexander Findlay
In the first place it may be again noted that at a temperature above 167.5 (point M) carnallite cannot exist.
The Phase Rule and Its Applications Alexander Findlay
carnallite contains nearly a fourth of its weight of potassium chloride.
Cooley’s Practical Receipts, Volume II Arnold Cooley
It is also formed as a by-product in the manufacture of potassium chloride from carnallite.
Encyclopaedia Britannica, 11th Edition, Volume 17, Slice 3 Various
It is obtained as a by-product in the manufacture of potassium chloride from carnallite.
An Elementary Study of Chemistry William McPherson
It is prepared from carnallite by saturating boiling water with the mineral and allowing the solution to cool.
An Elementary Study of Chemistry William McPherson
noun
a white or sometimes coloured mineral consisting of a hydrated chloride of potassium and magnesium in orthorhombic crystalline form: a source of potassium and also used as a fertilizer. Formula: KCl.MgCl2.6H2O
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