Question

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Explain some uses of calcium and strontium.

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★ No net copied answers.
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Answer 1

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Uses of calcium

★ As a reducing agent in the metallurgy of uranium, zirconium and thorium.

★ As a deoxidiser, desulphuriser or decarboniser for various ferrous and non-ferrous alloys.

★ In making cement and mortar to be used in construction.

★ As a getter in vacuum tubes.

★ In dehydrating oils

★ In fertilisers, concrete and plaster of paris.

Uses of strontium:

★ ⁹⁰ Sr is used in cancer therapy.

★ ⁸⁷Sr/⁸⁶Sr ratios are commonly used in marine investigations as well as in teeth, tracking animal migrations or in criminal forensics.

★ Dating of rocks

★ As a radioactive tracer in determining the source of ancient archaeological materials sich as timbers and coins.

Answer 2

Explanation:

Barium is not an extensively used element. Most is used in drilling fluids for oil and gas wells. It is also used in paint and in glassmaking. ... Barium is a heavy element and scatters X-rays, so as it passes through the body the stomach and intestines can be distinguished on an X-ray.