Optical glass, Chemistry

Optical glass: They contain phosphorous as replacement for most of all the silica and lead silicate, containing a little CaO2, the latter is capable of absorbing ultraviolet light which is injuries to eyes. Moreover, they are given through homogeneity. This is achieved by a very careful manufacturing process and by careful heating of molten mass of prolonged time. In, general, optical glasses have low melting points and are relatively soft. Their chemical resistance and durability are appreciably lower than those of ordinary glass. They are used for making lenses.

 

 

Posted Date: 7/21/2012 7:24:32 AM | Location : United States







Related Discussions:- Optical glass, Assignment Help, Ask Question on Optical glass, Get Answer, Expert's Help, Optical glass Discussions

Write discussion on Optical glass
Your posts are moderated
Related Questions

Q. Illustrate Chemical nomenclature? Ans. Chemical nomenclature is the system of names that chemists use to identify compounds precisely. The systematic method of naming c

explain crystallization as a method of separating mixture

what is the principle of solvent extraction?

Calculate the total heat (in J) needed to convert .777 moles of gaseous ethanol at 300 degrees C and 1 atm to liquid ethanol at 25 degrees C and 1 atm. Extra info: b.p. 78.5 degree

Calculate the activity co-efficient? The solubility of gaseous O 2 at a partial pressure of 1.01 bar and a temperature of 310.2K, ex- pressed as a concentration, is 1.07 *10 -

Ask queatomic number atomic radius graph stion #Minimum 100 words accepted#

Differential extraction - Purification of organic compounds This technique is employed for the separation of an organic compound that solid or liquid from its aqueous soluti

Rice bran Rice bran contains primarily insoluble fiber (cellulose) and soluble fiber (hemicellulose). Insoluble fiber adds bulk to the gastrointestinal (GI) track in humans cau