Pangea Chemicals | Glass Manufacturing Industry

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Glass Manufacturing Industry

The composition of all commercially produced glass is very carefully controlled. This is achieved by purchasing relatively pure raw materials and ensuring that they are well mixed in precise proportions before being fed to the melting furnace. The major raw materials used in glass manufacturing are:

	Silica Sand
	Sodium Carbonate (Soda Ash)
	Limestone

In addition to these basic ingredients several other items may be added in order to to make it more resistant to water and chemicals. Common additions include:

	Sodium Feldspar		Chromium
	Iron Chromite		Sodium Sulphate
	Iron Pyrite		Alumina
	Selenium		Calumite

Besides the chemicals mentioned,recycled glass (cullet) is also added to the melt. The cullet may arise from within the factory as a result of breakage or rejected ware. Cullet from this source is termed "domestic". Cullet brought into the factory from external sources (e.g. bottle banks) is termed "foreign".

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Pangea Chemicals Pvt. Ltd.

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