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pls see this :
http://www.glassworksservices.co.uk/html/melting_advice.html
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What is soda glass?
itis also called soda lime silica glass
What is the difference between soda lime and lime soda?
soda lime is a solid and a fruit lime soda is a drink that is made from soda and lime together.
Differences between soda-lime glass and borosilicate glass?
Soda lime glass made from sand (silicon dioxide), soda (Sodium hydroxide or carbonate) and lime (limestone or other calcium source) The soda makes the sand melt about 2000F instead of about 3000F and the calcium makes it water resistant (sodium silicate is water glass and dissolves in water) Borosilicate is glass made from sand and boron compounds. The advantage is that it has a much lower coefficient of expansion (COE) which means it doesn't change size much when heated, which means it doesn't crack when heated. The disadvantage is that while it softens when heated in a torch, it doesn't flow much and needs to be heated hotter than soda lime. Boro is used for scientific glass apparatus and for art projects as well as cookware in the home. When you see someone working glass in a mall or arts showcase with a torch with a strong blue flame, they are working boro, in part because it can heat and cool without cracking with less care than is needed for soda lime.
What material is used to make glass?
The earliest glass, formed when lightning struck a beach, was made of sand which was melted by the lightning. Today's glass is also made of sand, which is mixed with soda ash and lime to reduce costs. http://www.bigsiteofamazingfacts.com/how-is-glass-made The most familiar type of glass, used for centuries in windows and glass cups, is soda-lime glass, composed of about 75% silica (SiO2) plus Na2O, CaO, and several minor additives.
What are the three minerals in a light bulb?
The bulb is usually made of: Soft glass made from silica, trona (soda ash), lime, coal, and salt.
Why do we recycle soda lime glass?
The making of soda lime glass is expensive to compare then recycle sodalime glass . Main component for making soda lime glass is silica. for melting silica required toomuch temperature & other component which soda lime glass required are also much expansive. but recycled soda lime glass required low temperature for melting to shape it again at low cost . so we recycle soda lime glass. (mahesharma@rocketmail.com)
What is soda glass?
itis also called soda lime silica glass
Where does soda lime glass come from?
Soda lime glass is made by melting the component ingredients in a glass furnace. The temperatures in the furnace can reach 1675 degrees Celsius.
How did Egyptians make glass in 3500 BC?
by fusing sand soda and lime
Equation for soda-lime glass production?
NaCl + CaCO3 ->Na2CO3 + CaCl2
What is the main ingredient in making of glass?
salica(sand), lime. FIRE and soda
What is the difference between soda lime and lime soda?
soda lime is a solid and a fruit lime soda is a drink that is made from soda and lime together.
What percentages of silica soda and lime make glass?
A typical glass is prepared from 75 % SiO2 and 25 % Na2CO3.
How does pyrex dishes works?
A Pyrex dish is made out of a special type of glass so that it can be used in the oven or microwave. It is made out of soda-lime glass to withstand high temperature.
What ingredients are used when making glass?
Most glass is a mixture of silica obtained from beds of fine sand or from pulverized sandstone; an alkali to lower the melting point, usually a form of soda or, for finer glass, potash; lime as a stabilizer; and cullet (waste glass) to assist in melting the mixture.
How do you calculate redox number of batch for glass?
There are two redox , one is btach redox and another is glass redox . Glass redox is calculated as Redox =%FeO/total iron in glass as Fe2O3 This is very important factor in refining , color of glass . % FeO is calculated by IR transnmission and Total iron is determined by XRF or analytical method . Should you have question , contact us OGS Technology SMishra Shyambmishra@gmail.com
Differences between soda-lime glass and borosilicate glass?
Soda lime glass made from sand (silicon dioxide), soda (Sodium hydroxide or carbonate) and lime (limestone or other calcium source) The soda makes the sand melt about 2000F instead of about 3000F and the calcium makes it water resistant (sodium silicate is water glass and dissolves in water) Borosilicate is glass made from sand and boron compounds. The advantage is that it has a much lower coefficient of expansion (COE) which means it doesn't change size much when heated, which means it doesn't crack when heated. The disadvantage is that while it softens when heated in a torch, it doesn't flow much and needs to be heated hotter than soda lime. Boro is used for scientific glass apparatus and for art projects as well as cookware in the home. When you see someone working glass in a mall or arts showcase with a torch with a strong blue flame, they are working boro, in part because it can heat and cool without cracking with less care than is needed for soda lime.
