Illustrated Glossary of Organic Chemistry
Hydroiodic
acid
:
An
aqueous
solution of
hydrogen iodide (HI)
. Best described as
H
3
O
+
I
-
. A strong
acid
;
H
3
O
+
p
K
a
-1.78. When hydroiodic
acid
is saturated or supersaturated with
HI
it is called concentrated hydroiodic
acid
.
Lewis structure
of
hydronium
iodide.
Related terms:
Hydrogen fluoride
,
hydrofluoric acid
,
hydrogen chloride
,
HCl
,
hydrochloric acid
,
muriatic acid
,
hydrogen bromide
,
hydrobromic acid
,
sulfuric acid
,
nitric acid
,
phosphoric acid
,
mineral acid
,
acetic acid
,
carboxylic acid
,
sulfonic acid
,
Lewis acid
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