A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
(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 7870°F.,
boiling point 16650°F., specific gravity 7.14. It can be electrodeposited
and is used extensively as a coating for steel (See Galvanizing)
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.
(Chemical Symbol Zr.) - Element No. 40 of the periodic system.
Atomic weight 91.22. Specific gravity 6.5 and melting point at
about 3200° +/- 1300°F. Because of its great affinity for
oxygen and combines readily with nitrogen and sulfur, it is used
as a deoxidizer and scavenger in steel making. It is used as an
alloy with nickel for cutting tools and is used in copper alloys.
|
