potass

American  

[pot-as] / ˈpɒtˌæs /

noun

1. potash.

2. potassium.

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Etymology

Origin of potass

1790–1800; < French potasse < Dutch potasch (now pronounced and spelled potas ) potash

Example Sentences

See Examples For:

potass

If a similar paper be striped with sub-carbonate of potass, and crossed with infusion of galls, and afterward dipped in a solution of sulphate of iron, it will become purple, yellow, black and white.

From A Select Collection of Valuable and Curious Arts and Interesting Experiments, Which are Well Explained and Warranted Genuine and may be Performed Easily, Safely, and at Little Expense. by Various Unknown

This great chemist thus describes the method of making it: 'Half an ounce of wheat flour, half an ounce of malt meal, and seven and a half grains of bicarbonate of potass, are weighed off.

From The Physical Life of Woman: Advice to the Maiden, Wife and Mother by George H. (George Henry) Napheys

Bromide of Potassium--Is prepared by mixing bromine and a solution of pure potass together, and evaporating to dryness; it crystallizes in small cubes, and dissolves readily in water.

From American Hand Book of the Daguerreotype by S. D. (Samuel Dwight) Humphrey

Reduce to powder separately, five drams of nitrate of potass, one dram of sulphur, and one of new-burnt charcoal.

From The Cook and Housekeeper's Complete and Universal Dictionary; Including a System of Modern Cookery, in all Its Various Branches, Adapted to the Use of Private Families by Mary Eaton

The composition for looking glass plates, is 60 lbs. of clean white sand, 25 lbs. of purified sub-carbonate of potass, 15 lbs. of nitrate of potass, and 7 lbs. of borate of soda.

From A Select Collection of Valuable and Curious Arts and Interesting Experiments, Which are Well Explained and Warranted Genuine and may be Performed Easily, Safely, and at Little Expense. by Various Unknown