The properties and uses of the following types of glass will now be discussed:
(1) Soda-lime glass
(2) Potash-lime glass
(3) Potash-lead glass
(3) Potash-lead glass: This is also known as the flint glass. It is mainly a mixture of potassium silicate and lead silicate.
Properties: Following are the properties of potash-lead glass:
(i) It fuses very easily.
(ii) It is easily attacked by aqueous solutions.
(iii) It possesses bright luster and great refractive power.
(iv) Its specific