3. You will learn about…
1. Basic knowledge of gold
Proportion of gold in different karat gold
Various colours of gold
2. Purple Gold
Composition of Purple Gold
Discovery of Purple Gold
Characteristic of Purple Gold
Purple Gold jewelry care
5. Various Colours of Gold
COLOUR COPPER(Cu) SILVER(Ag) OTHERS
Yellow 25% 70% 5%
White 30% 60%
10%
(Palladium)
Pink(Rose) 60% 35% 5%
Purple - -
100%
(Aluminum)
1. Basic Knowledge of Gold (Cont.)
6. Purple gold is
a strange thing.
19K
PURPLE
GOLD
ALUMINUM
20%
GOLD
80%
It's not an alloy.
It is intermetallic
compound.
The bond between
gold and aluminum
is ionic bond.
Composition of Purple Gold
2. Purple Gold
7. Discovery of Purple Gold
2. Purple Gold(Cont.)
Invented by metallurgist Professor Loh (in Singapore)
Collaborated with Aspial Corporation Limited
In 2000, the world’s first Purple Gold made its debut
In 2002, Purple Gold was patented(Patent No. 82596)
8. Characteristic of Purple Gold
2. Purple Gold(Cont.)
Low malleability
React to acid and other contaminants
9. Purple Gold Jewelry Care
2. Purple Gold(Cont.)
Do not subject Purple Gold jewelry to chemicals
or physical stress
Remove Purple Gold before showering
Use a damp soft cotton cloth to wipe off any oil stains
or finger prints and dry it with a soft cotton cloth
http://www.purplegold.com/