Illustrated Glossary of Organic Chemistry
Chromium trioxide (CrO
3
):
A
molecule
containing one Cr
6+
atom having three
double bonds
to oxygen atoms. A strong
oxidizing agent
used to form certain other common
oxidizing agents
such as
Jones reagent
and
PCC
.
Molecular structure
of CrO
3
.
CrO
3
+
H
2
SO
4
+
H
2
O
+
acetone
aq.
H
2
CrO
4
(
Jones reagent
)
Mixing CrO
3
with
concentrated H
2
SO4
,
water
, and
acetone
forms
aqueous
chromic
acid
(
Jones reagen
t).
CrO
3
+
+
aq. HCl
(
PCC
)
Mixing CrO
3
with
pyridine
and
hydrochloric acid
forms
pyridinium chlorochromate
(
PCC
).
Related terms:
Wikipedia entry
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