from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. Having two replaceable hydrogen atoms; dibasic.
from the GNU version of the Collaborative International Dictionary of English
- adj. Having to hydrogen atoms which can be replaced by positive or basic atoms or radicals to form salts; -- said of acids. See dibasic.
from The Century Dictionary and Cyclopedia
- Literally, having two bases: in chem., applied to acids (such as sulphuric acid, H2SO4) which have two hydrogen atoms replaceable by a base or bases. See monobasic, tribasic, dibasic, and polybasic.
Acids like sulphuric acid are termed bibasic, and their equivalent is only half the molecular weight.
Among these may be mentioned -- Alder Wright's method of using an ammoniacal salt, the acid radicle of which neutralises the caustic alkali, ammonia being liberated; the use of sodium and potassium bibasic phosphate (Eng.Pat. 25,357, 1899); a substance formed by treating albumen with formalin
Similarly, lime and most of the bases are bibasic, as may be seen from the following equations; hence their equivalent will be half the molecular weight.