physicochemical property

physical features

1, color:

When gold melts, the steam emitted is yellow-green; Its gold powder is usually brown when it is melted; If it is cast into thin slices, it can transmit green light.

2. Extensibility:

Extremely powerful. 1 oz gold can be stretched to 50 miles long, and its ductility makes it easy to cast, making it a good choice for making jewelry. Of all metals, gold has the greatest pulling force.

3. Extensibility:

Second to none. It will cause extremely thin gold sheets to roll up easily. Gold weighing 1 oz can be hammered down to 1 ft, 100 m2. The ancients hammered it into thin slices and spread it in temples and palaces for decoration. All these can explain the flexibility and ductility of gold.

The color of gold is golden yellow, which has a metallic texture and is not easy to decompose. The density is 19.3g/cm3 and the melting point is1064.4℃; Good ductility, can be pressed into thin foil, and has extremely high heat and thermal conductivity. The resistance of pure gold is 2.4P Pure gold has good chemical resistance and is the best electroplating material.