an impure form of heroin.
an impure art form.
a parasite that thrives in impure water.
he took a shot of impure heroin.
citizens suspected of harbouring impure thoughts.
Impure drinking water is a cause of disease.
The technological condition of Potassium Sulfate production from impure glaserite and impure Potassium chloride, is discussed in the paper,It is proved by experiment.
An impure oxide of cobalt, used to produce a blue color in enamel and in the making of smalt.
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