glass on glass tubes

This is a burette-like glass tube graduated in milli litres. This is used for collecting the displaced ai..

Any amorphous and transparent solid that is a product of the solidification of a liquid is called glass. However, glass is generally referred to as the transparent substance obtained when white sand is fused with oxides and carbonates of alkaline earth metals and the molten mixt..

Glass - Ordinary glass is a mixture of sodium and calcium silicates and is made by heating a mixture of sand (essentially SiO 2 ) with sodium carbonate and calcium oxide in a furnace at around 1700K and cooling rapidl..

Ordinary glass is a mixture of sodium and calcium silicates and is made by heating a mixture of sand (essentially SiO 2 ) with sodium carbonate and calcium oxide in a furnace at around 1700K and cooling rapidly. ..

As we have seen, glass is a mixture of number of silicates. Therefore, when heated, it does not melt at a fixed temperature. But, it softens gradually and hence can be moulded into any desired shape. It is this property that makes glass one of the widely used materia..

Since CO 2 is liberated in the initial stages, frothing is a common observation. All the CO 2 is driven out on continued heating and a clear viscous fluid mass is got. It is then poured into moulds of various shapes or stamped with die (a device for stamping, cutting, or moulding material into a..

Place a rectangular glass slab on a white sheet of paper fixed on a drawing boar..