Question

Soda glass must not be used in making laboratory heating apparatus. Justify.

Answer 1

Glass is an amorphous, hard, brittle, transparent, translucent super cooled liquid of infinite viscosity, having no definite melting point. Soda glass is a type of glass. It is also known as soft glass.

Complete step by step answer:
Glass can be referred to as an inflexible material. Glass is obtained by fusing a mixture of a number of metallic silicates or borates of sodium, potassium, calcium and lead. It possesses no definite formula or crystalline structure. It is an inorganic product of fusion which has cooled to a rigid condition without crystallizing. It does not have a specific melting point. It softens over a temperature range.
There are different types of glass. One among them is soda glass. It is also called soft glass or soda lime glass. About $90\%$ of all glass is soda lime glass. It is made with silica (sand), calcium carbonate and soda ash. The approximate composition of soda lime glass is ${\text{N}}{{\text{a}}_2}{\text{C}}{{\text{O}}_3}.{\text{CaO}}.6{\text{Si}}{{\text{O}}_2}$. They are of low cost and resistant to water but not to acids. They can melt easily.
When the soda glass is given a high temperature, it may break. At low temperatures, it fuses.

Additional information:
They are usually used for windowpanes and glass containers such as bottles and jars for beverages, food and some commodity items.

Note:
Soda acts as a fluid to lower temperatures in which the silica melts. The lime acts as a stabilizer. It can be softened to finish an article. Soda glass gets shattered by sudden temperature changes. Soda glass makes fabrication and cutting easier.