Mother liquor

Mother liquor

A mother liquor is the part of a solution that is left over after crystallization. It is encountered in chemical processes including sugar refining.[1]

In crystallization, a solid (usually impure) is dissolved in a solvent at high temperature, taking advantage of the fact that most solids' solubilities are higher at higher temperatures. As the solution cools, the solubility of the solute in the solvent will gradually become smaller. The resultant solution is described as supersaturated, meaning that there is more solute dissolved in the solution than would be predicted by its solubility at that temperature. Crystallization can then be induced from this supersaturated solution and the resultant pure crystals removed by a method such as vacuum filtration. The remaining solution, once the crystals have been filtered out, is known as the mother liquor, and will contain a portion of the original solute (as predicted by its solubility at that temperature) as well as any impurities that were not filtered out. Second and third crops of crystals can then be harvested from the mother liquor.[2]


References

  1. ^ Encyclopædia Britannica
  2. ^ Operational Organic Chemistry - A Problem Solving Approach to the Laboratory Course, Fourth Edition. ISBN# 9780136000921



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  • Mother liquor — Mother Moth er, a. Received by birth or from ancestors; native, natural; as, mother language; also acting the part, or having the place of a mother; producing others; originating. [1913 Webster] It is the mother falsehood from which all idolatry… …   The Collaborative International Dictionary of English

  • mother liquor — noun also mother liquid : a residual liquid resulting from crystallization and remaining after the substances that readily or regularly crystallize have been removed called also mother water * * * the portion of a solution remaining after… …   Useful english dictionary

  • mother liquor — the portion of a solution remaining after crystallization of its important component. [1790 1800] * * * …   Universalium

  • Mother — Moth er, a. Received by birth or from ancestors; native, natural; as, mother language; also acting the part, or having the place of a mother; producing others; originating. [1913 Webster] It is the mother falsehood from which all idolatry is… …   The Collaborative International Dictionary of English

  • Mother cell — Mother Moth er, a. Received by birth or from ancestors; native, natural; as, mother language; also acting the part, or having the place of a mother; producing others; originating. [1913 Webster] It is the mother falsehood from which all idolatry… …   The Collaborative International Dictionary of English

  • Mother church — Mother Moth er, a. Received by birth or from ancestors; native, natural; as, mother language; also acting the part, or having the place of a mother; producing others; originating. [1913 Webster] It is the mother falsehood from which all idolatry… …   The Collaborative International Dictionary of English

  • Mother country — Mother Moth er, a. Received by birth or from ancestors; native, natural; as, mother language; also acting the part, or having the place of a mother; producing others; originating. [1913 Webster] It is the mother falsehood from which all idolatry… …   The Collaborative International Dictionary of English

  • Mother queen — Mother Moth er, a. Received by birth or from ancestors; native, natural; as, mother language; also acting the part, or having the place of a mother; producing others; originating. [1913 Webster] It is the mother falsehood from which all idolatry… …   The Collaborative International Dictionary of English

  • Mother tongue — Mother Moth er, a. Received by birth or from ancestors; native, natural; as, mother language; also acting the part, or having the place of a mother; producing others; originating. [1913 Webster] It is the mother falsehood from which all idolatry… …   The Collaborative International Dictionary of English

  • Mother water — Mother Moth er, a. Received by birth or from ancestors; native, natural; as, mother language; also acting the part, or having the place of a mother; producing others; originating. [1913 Webster] It is the mother falsehood from which all idolatry… …   The Collaborative International Dictionary of English

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