law of multiple proportions


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Related to law of multiple proportions: law of reciprocal proportions

law of re·cip·ro·cal pro·por·tions

the relative weights in which two substances form a chemical union singly with a third are the same as, or simple multiples of, those in which they unite with each other; a corollary of the law of definite proportions.

law of multiple proportions

When two substances unite to form a series of chemical compounds, the proportions in which they unite are simple multiples of one another or of one common proportion.
See: Dalton's law
See also: law