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单词 protosalt
释义 protosalt Chem.|ˈprəʊtəʊsɔːlt|
[f. proto- 3 + salt1.]
A salt formed by combination of an acid with the protoxide of a metal, e.g. a salt of ferrous oxide, FeO, as ferrous sulphate, FeSO4.
1820Faraday [see persalt].1836–41Brande Chem. (ed. 5) 592 The protosalts of iron are in these cases preferable to those of tin, inasmuch as the resulting peroxide of iron is retained in solution, and the precepitated metal is pure.1866R. M. Ferguson Electr. (1870) 42 Among paramagnetic substances are proto salts of iron.1869Roscoe Elem. Chem. (1871) 239 The ferrous- or proto-salts are distinguished by their light green colour.
So proto-soˈlution, a solution which contains a protosalt.
1854Scoffern in Orr's Circ. Sc., Chem. 457 Add carbonate of potash or soda to a protosolution of zinc.
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