Multipliers.
Acetic acid (anhydrous) 1·159
" " (hydrated or glacial) 1·364
Citric acid (crystallised) 1·523
Hydrochloric acid (dry or gaseous) ·829
" " (sp. gr. 1·16) 2·478
Nitric acid (anhydrous) 1·227
" " (sp. gr. 1·5) 1·523
" " (sp. gr. 1·42) 2·045
Oxalic acid (crystallised) 1·432
Sulphuric acid (anhydrous) ·909
" " (sp. gr. 1·8485) 1·114
Tartaric acid (anhydrous) 1·500
" " (crystallised) 1·705
Even this easy calculation may be avoided, in technical analysis, by
simply taking for the assay such a weight of the respective acids as is
capable of disengaging exactly 10 gr. of dry carbonic acid from the
bicarbonate. In this case, the loss of weight in grains, from the
operation, multiplied by 10, at once indicates the exact per-centage
strength sought. The proper weight of any acid to be taken to give
per-centage results is found by simply dividing ten times the equiv. of
that acid by 44. For, taking sulphuric acid as an example,
as-- 44: 49 :: 10 : 11·1318
or 11·13 nearly.