Uses of Yttrium and Chromium

Yttrium

Chromium

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Uses

Yttrium metal is used in different alloys, as it increases the strength of aluminum Magnesium alloy. It is used for radar microwave filter.
It is also used as a catalyst in ethene polymerisation.

Electrical Industry, Electronic Industry

Alloys

Highly Toxic

✔✘

0.00 Blood/mg dm-3

0.07 p.p.m.

It is used to harden the steel and produces a stainless steel and other various alloys.
It is also used to give proper finish to polished mirrors. Its chromium plates are used in bathroom fittings.

Automobile Industry, Chemical Industry

Alloys

Highly Toxic

✔✘

0.11 Blood/mg dm-3

0.33 p.p.m.