mineral alkalin.
/ˌmɪn(ə)rəl ˈalkəlʌɪ/, /ˌmɪn(ə)rl̩ ˈalkəlʌɪ/, U.S. /ˌmɪn(ə)r(ə)l ˈælkəˌlaɪ/ Chemistry.
A soluble inorganic base; esp. an alkaline salt of sodium or (in later use) of any metal in group one or two of the periodic table.
ΚΠ
1756 C. Lucas Ess. Waters i. 9 Native or Mineral alcali is the basis of common salt.
1785 J. Feron Exper. on Waters Boston I. 563 From these various experiments, may we not conclude that the waters of Boston contain a sea salt with a basis of mineral alkali in small quantity.
1867 C. L. Bloxam Chemistry 8 A mineral alkali is a metallic oxide easily soluble in water, and capable of restoring the blue colour to litmus which has been reddened by an acid.
1879 H. Watts Dict. Chem. (new ed.) I. 15 It was first clearly established in 1736, by Duhamel, that there existed two essentially distinct kinds of fixed alkali. From this time, three kinds of alkali were recognised,—vegetable alkali, mineral alkali, and volatile alkali, corresponding respectively to potash, soda, and ammonia.
1981 P. Sykes Guidebk. to Mechanism in Org. Chem. (ed. 5) iii. 66 Tetraalkylammonium salts..are known, on treatment with moist silver oxide..to yield basic solutions comparable in strength with the mineral alkalis.
This is a new entry (OED Third Edition, March 2002; most recently modified version published online March 2022).
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n.1756