Yellow Gold
Gold generally means yellow gold, and it is one of the precious metal
elements, and it is chemically denoted by the symbol Au, and it takes an atomic
number in the periodic table is 79. Peoples in the form of a monetary unit, and
it is also used in the jewelry industry, and it can be found in nature in the
form of grains in the bottoms Rivers and rocks, and gold is often found
accompanied by copper and lead.
Properties
1.
Yellow gold is an octagonal
element that can be crystallized.
2.
It is in the form of irregular
plates.
3.
The specific gravity of gold
ranges between 15.6-19.3.
4.
Classified from ductile and
ductile metals.
5.
The degree of yellowing varies
with the percentage of silver mixed with it.
6.
Easily soluble as it melts at a
temperature of 1063 ° C.
7.
Insoluble in acids and regia water.
Uses
The precious metal of gold is used in a number of uses for its unique
properties such as ductility, ductility, methods, ease of formation and
corrosion resistance, so gold has become popular in use, as is the case in the
jewelry industry and medical uses such as the manufacture of gold teeth and
treatment of bone infections with gold solution and the treatment of some types
of gold. Cancer in radioactive gold, finally investing in bullion.
White Gold
There are conflicting opinions and opinions about whether white gold
is the same as platinum, but some opinions indicate that white gold is not gold
at all, but rather a platinum metal, and it is considered more expensive than
yellow gold, but there is a similarity between it and yellow gold in terms of
properties. White gold is classified as into two types:
White gold: which is extracted as a result of mixing gold with other
metals such as copper, palladium and silver, and the provisions of gold and silver
are applied to it in proportion to the formation of each of these metals within
white gold.
Platinum, and it is not considered gold at all, so the provisions of
yellow gold and silver do not apply to it.
The difference between white and yellow gold
The difference between white and yellow gold lies in the type of alloy
used to make them, as well as the purity or karat of the gold. It is noteworthy
that white gold is yellow gold to which other metals such as palladium, nickel,
zinc and silver have been added to become white and distinctive, and it needs
rhodium plating unlike yellow gold that does not need to be painted. White gold
is more expensive than yellow gold because of the addition of rhodium, which
gives it durability and strength.
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