Soda lime glass and safety glasses, Chemistry

Q. Write an account of soda lime glass and safety glasses.

Ans. Soda-Lime Glass or soft glass: It is the ordinary glass in which Na2O is added to the melt to oxide on heating.

Properties:

1.      Low cost

2.      Resistant to devitrification and water

3.      Attacked by common reagents like acids

4.      Its melts easily

Uses: Soft glass is widely used for (a) Window glasses (b) Electrical bulbs, (c) Plate glasses, (d) Cheaper table wares like bottles, jar etc. (e) Cheap laboratory glassware.

Safety glass or laminated glass: " A glass which when breaks does not allow its broken pieces to fly apart."

Preparation: Safety glass is prepared by placing a thin layer of Vinyl plastic between two sheets of glass. Then the plastic and glass sheets are pressed together under heat, so that the plastic thin layer is sandwiched in between the glass sheets. The edges of the combined sheets are sealed with some water resistant compound. The glass becomes quite tough. (The glass sheets used are ordinary glass sheets and plastic sheet used is of either cellulose acetate of polyvinyl butyl (acetyl) resin).

Properties:

(1)         Safety glass shatter-proof.

(2)         It is quite touch.

Uses:

(a)          Three layer laminated glass is used as wind shields in automobile and aeroplane industries.

(b)         Five-layer laminated glass is used in building construction.

(c)           Several layer laminated glass is bullet proof and used for making looking windows, automobile wind screens.

Posted Date: 7/21/2012 7:27:30 AM | Location : United States







Related Discussions:- Soda lime glass and safety glasses, Assignment Help, Ask Question on Soda lime glass and safety glasses, Get Answer, Expert's Help, Soda lime glass and safety glasses Discussions

Write discussion on Soda lime glass and safety glasses
Your posts are moderated
Related Questions
to study the presence of aroma,taste, ph value and tannic acid of different tea leaves

One way to create ethanol for use as a gasoline additive is the reaction of water vapor with ethylene: a. write this equation using Lewis structures. b. Is this reaction e

Q. Evaluate precentage Proteins in Milk ? Milk comprises of casein, lactoalbumins and lactoglobulins. About 82 per cent of the protein in milk is casein and the remaining prot

What is basically Gibb''s free energy change?Why it is required and How is related to spontaneity of a chemical reaction ?  Ans) The energy associated with a chemical reaction t


How many moles of octane must be burned to release 525.1 kcal ?

d block elements boiling point

Stephen reaction - Aldehydes and Ketones Benzaldehyde is acquired by partial reduction of phenyl cyanide along with stannous chloride and passing dry HCl gas in ether solution


Q. Estimation of synthetic food colours in foods? Food colours in various products need to be isolated, identified and then quantitatively measured for their limits. Estimatio