Melting Point of Gold
Gold is one of the oldest metals known to humans, and it is known for its distinctive physical and chemical properties, such as high density, hardness, malleability, and ductility. One of the most important properties of gold is its melting point, which determines the temperature at which gold changes from a solid to a liquid state.
Gold bar
Melting point of pure gold
The melting point of pure gold is 1,064 degrees Celsius, or 1,945 degrees Fahrenheit. Below this temperature, gold is in a solid state. When the temperature reaches 1,064 degrees Celsius, the bonds between the atoms in gold begin to break down, causing it to change to a liquid state.
Effect of impurities on the melting point of gold
The impurities present in gold affect its melting point. As the impurity content of gold increases, the melting point decreases. For example, the melting point of 24-karat gold, which is pure gold with no impurities, is 1,064 degrees Celsius. 22-karat gold, on the other hand, is composed of 22 parts pure gold out of 24 parts, and its melting point is 1,053 degrees Celsius.
Applications of the melting point of gold
The melting point of gold is used in many practical applications, such as:
- Jewelry making: Gold is melted to form it into different shapes of jewelry.
- Electronics industry: Gold is used in the manufacture of sensitive electrical circuits.
- Dental fillings: Gold is used to make durable and strong dental fillings.
Conclusion
The melting point of gold is an important physical property that determines the temperature at which gold changes from a solid to a liquid state. This property is used in many practical applications.
