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Engineering Dictionary

Zinc

Chemical Symbol Zn. Element No. 30 of the periodic system; atomic weight 65.38. Blue white metal; when pure, malleable and ductile even at ordinary temperatures; melting point 787 (degrees) F.; boiling point 1665 (degrees) F., specific gravity 7.14. Can be electrodeposited; it is extensively used as a coating for steel and sheet zinc finds many outlets, such as dry batteries, etc. Zinc base alloys are of great importance in die casting. Its most important alloy is brass.