| 释义 |
disulphate Chem.|daɪˈsʌlfət, -eɪt|
[f. di-2 + sulphate.]
†1. In earlier use, a salt containing one equivalent of sulphuric acid to two of base. Obs.
1838T. Thomson Chem. Org. Bodies 228 Solution of disulphate of cinchonina. c1865J. Wylde in Circ. Sc. I. 417/1 Quinine,..as a disulphate, has been..substituted.
2. A salt containing two equivalents of sulphuric acid to one of base (Syd. Soc. Lex.).
3. Applied by some to a sulphate containing a hydrogen atom replaceable by a basic element or radical; an acid sulphate (Cent. Dict.).
4. A salt of disulphuric acid, a pyrosulphate.
1877Roscoe & Schorl. Chem. I. 345 The name disulphuric acid H2S2O7 has been given to this substance, as it forms a series of very stable salts; thus sodium disulphate Na2S2O7 is obtained by heating the acid sodium sulphate HNaSO4, so long as water is given off. |