A chemical reaction of known
stoichiometry can be written in general as:
For the reaction products Y and Z the numbers
and
are known as the
stoichiometric numbers,
and
, for Y and Z respectively.
For the reactants the
stoichiometric numbers are the negatives of the numbers appearing in the equation; for example the
stoichiometric number
for the reactant A is
.
In other words, the
stoichiometric numbers are positive for products and negative for reactants.
Source:
PAC, 1996, 68, 149
(A glossary of terms used in chemical kinetics, including reaction dynamics (IUPAC
Recommendations 1996))
on page 187
PAC, 1996, 68, 957
(Glossary of terms in quantities and units in Clinical Chemistry (IUPAC-IFCC Recommendations
1996))
on page 993
See also:
PAC, 1996, 68, 1167
(Pesticides report 36. Glossary of terms relating to pesticides (IUPAC Recommendations
1996))
on page 1168
Cite as:
IUPAC. Compendium of Chemical Terminology, 2nd ed. (the "Gold Book"). Compiled by
A. D. McNaught and A. Wilkinson. Blackwell Scientific Publications, Oxford (1997).
XML on-line corrected version: http://goldbook.iupac.org (2006-) created by M. Nic,
J. Jirat, B. Kosata; updates compiled by A. Jenkins. ISBN 0-9678550-9-8.
https://doi.org/10.1351/goldbook.
