zinc chloride + barium
sulfate.BaCl2(aq) + ZnSO4(aq)
ZnCl2(aq)
+ BaSO4(s)Negative Ions - Sulfate.
The Barium Chloride Test
for Sulfate (SO42-) Ions.
Any soluble sulfate will give a white precipitate of
barium sulfate.
barium chloride
+ zinc sulfatezinc chloride + barium
sulfate.
BaCl2(aq)
+ ZnSO4(aq) ZnCl2(aq)
+ BaSO4(s)
The ionic equation
is Ba2+(aq) +
SO42-(aq)
BaSO4(s)
The test is made in the presence of
dilute hydrochloric
acid to remove any carbonate or sulfite ions
which may be present. These ions will
also produce a
precipitate which would confuse the results.
Barium sulfate is sometimes used as a barium meal.
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