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This presentation is all about Glass, its properties,the raw materials used in glass, the manufacturing process for making glasses and then different types of glasses and their properties. :)
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Soda-Lime glass with details process
1. Presentation of inorganic chemistry
Group members
• Muhammad umair
• Zain ul afreen
• S.m Hassan raza
• Shah asjad
• Sohaib zafar
2. SODA LIME GLASS
History :-
Soda lime glass was produced throughout much of Europe for hindered of
years. Silica, in the form of sand and lime stone were abundant nearly
everywhere. Soda ash was readily obtained from hardwood Forest through
venetian glassmakers favoured potash produced by burning seaweed
3.
4. Introduction
Definition
“Soda-lime glass, also known as soda-lime-silica glass or soft glass or window glass is a type of glass that
contains 70% Silica 15% soda and 9% lime. It is the most common and least expensive type of glass.
• It chemical Formula is Na2O.CaO.6SiO2
• This type of glass makes up about 90% of all manufactured glass.
• Soda-lime glass is the most common and least expensive form of glass.
6. RAW MATERIALS
Major ingredients
1. Silica (SiO2) 70%
2. Soda (Na2O) 12%
3. Lime (CaO) 8%
Minor ingredients
1. Magnesium oxide (MgO) 3%
2. Aluminium oxide ( AlO) 1%
7. COLOURING MATERIALS
Certain Metallic oxides are added to Molten Mass ( Fused Silicates) during the manufacturing Of colouring Soda-
Lime glass
EXAMPLES
Green
Yellow
Red
Blue
Lemon yellow
Purple
Etc .
Ferrous iron
Feric iron, Na-Uranate
Cuporus Oxide
Cobalt Oxide
CdSO4
MnO
..
8.
9. Manufacturer process
The manufacturer of soda lime glass consist of four phases
(1) PREPARATION OF RAW MATERIAL
(2) MELTING
(3) FORMING
(4) FINISHING
10. First silicone oxide react with Sodium Carbonate at 1100 °C to form Sodium Metasilicate and carbon dioxide
SiO2 + Na2CO3 Na2SiO3 + CO
Then heat CaCO3 to form Calcium Oxide
CaCO3 ----->CaO + CO2
Finally Sodium Metasilicate and Calcium Carbonate combined to form soda-lime glass
Na2SiO3 + CaO ------------> NaO.CaO.SiO2
CHEMICAL REACTION
11.
12.
13.
14.
15. PROPERTIES
PROPERTY
Refractive Index, ñ
% Tranismettence (at 1 Ùm)
Density, (g/Cm³)
Specific heat, (J/g.°C)
Melting Temperature (°C)
Softening Point (°C)
Vaporization Temperature (°C)
VALUE
1.46
70-80
2.5
0.87
1000
700
3427
16. Application
• It has construction application like glass door and window
• It is used in manufacturing of bottles and and containers for food and deverages
• It is used as a high voltage insulator, light bulbs, etc
• It is used as a laboratory ware
• It is used as an art and decorative object
