HOW MIRRORS ARE

MADE?

HISTORY

It is believed that in ancient, mirrors were made of

bronze and were used by the Egyptians, Greeks

and Romans. Then glass mirrors were originally

made in Venice in 1291. In the late seventeen

century, mirrors were made in Britain. Late, it

became an important industry in European and

American countries.

Nowadays, mirrors are used as toilet articles.

Millions of people have more of a mirror at home.

PROCESS

The process of making mirrors is so simple that you

can make one. First, a glass sheet is coated with

silver or aluminum with the aid of a chemical

process. In industrial production, the metal is

brought to a boil in special chambers and then

condensed on the glass sheet to form a perfect

finish cover. The back of the mirror is painted to

protect the metal layer from damage.

Second, you have the process of silver. Two

chemical solutions are made, one is silver nitrate,

ammonia and distilled water and the other has

Rochelle salts dissolved in the distilled water. Then

the solutions are mixed and as a result the liquid

silver is obtained. So, silver liquid is sprayed on the

glass sheet. This mixture should be poured over the

very clean glass, then the mixture will cool.

Finally, when the mirror is dry. it should be framed.

There are different types of mirrors

BY

Zenklusen, Agostina

Paz, Cindi

Riboldi, Jesica