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H
+
ions to form water, the addition of OH
−
is equivalent
to a reduction of
m
H
+
.
The term
alkali
describes a water-soluble
base
, in par-
ticular the hydroxides of sodium (Na) and potassium
(K). For this reason Na and K are known as
alkali met-
als
; in geological usage this term is often abbreviated to
'alkalis'. Sodium and potassium form basic oxides
(Box 8.1).
Barrett, J. (2003)
Inorganic Chemistry in Aqueous Solution
.
Cambridge: Royal Society of Chemistry.
http://pmel.noaa.gov/co2/story/A+primer+on+pH
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