Chemical substances that are the same as the main components of the composition of ordinary glass ar

In order to increase the strength of the glass, chemical or physical methods are commonly used to form a compressive force on the surface of the glass, and the surface stress is first offset when the glass is subjected to external force. As a result, the load-bearing capacity is increased and the tensile strength of the glass is improved. There are two main advantages of tempered glass, the first is that the strength is several times higher than that of ordinary glass, the bending strength is 3 5 times that of ordinary glass, and the impact resistance is 5 10 times that of ordinary glass. The increased strength also improves safety. Safety is the second major advantage of tempered glass, and its increased bearing capacity improves the fragility of the glass, even if the tempered glass is broken, it is a small fragment with no sharp angle. The damage to the human body has been greatly reduced .

The resistance of tempered glass to extreme cooling and heat is 2 to 3 times higher than that of ordinary glass, and it can generally withstand temperature changes above 150lc, which has obvious effects on preventing thermal explosion.

Tempered glass is processed from ordinary flat glass or float glass. Ordinary flat glass requires special selection or first-class products; Float glass requires the use of high-grade or first-class products.

There are two kinds of processes for the production of tempered glass: one is to process ordinary flat glass or float glass under specific process conditions by quenching method or air-cooled quenching method. The other is to process ordinary flat glass or float glass through the ion exchange method to change the surface composition of the glass to form a layer of compressive stress layer on the glass surface.

Tempered glass has the characteristics of high impact strength (4 5 times higher than ordinary flat glass), high bending strength (5 times higher than ordinary flat glass), good thermal stability, and smooth, transparent and cut. In the event of super impact damage, the fragments are scattered and fine particles, without sharp edges and corners, so it is also called safety glass.

Tempered glass is divided into flat tempered glass and curved tempered glass according to shape. There are eight kinds of thickness of flat tempered glass; There are three thicknesses of curved tempered glass: mm.

According to its appearance quality, tempered glass is divided into two categories: excellent products and qualified products.

Tempered glass is divided into Class I, Class and Class according to the state of fragments.

c Tempered glass.

Only C is still a silicate ......

Tempered glass Tempering only changes the physical properties of the glass, while its composition does not change.

Categories: Education, Science, >> Science & Technology.

Problem description: Why is this chemical so stable

Analysis of He Sellun:

The main component of glass is silicon dioxide (SiO2) but it is a mixture of Puzen glass, which contains a small amount of sodium oxide (Na2O) calcium oxide (CaO).

Chemically stable because SiO2 is quite inactive albeit an acidic oxide.

However, it only reacts with a strong alkali SiO2+2NaOH==Na2SiO3+H2O (the alkaline solution container cannot be prepared with a glass stopper).

In addition, SiO2 can react with fluoride to form the gas silicon tetrafluoride: SiO2+4HF==SIF4 +2H2O

In addition, most substances are difficult to react with SiO2, so glass products are widely stored in various reagents, and it is also used as a container in daily life.

Industrially, soda ash and limestone are used to fire glass in glass kilns:

Na2CO3 + SiO2 (sand) == High temperature == Na2SiO3 + CO2

CaCO3+SiO2==High Temperature==Casio3+CO2

Among them, Nasio3 and Casio3 exist in the form of Na2O·SiO2 and CaO·SiO2 respectively, and the purer silica is obtained by removing the slag, that is, ordinary glass.

1. The main chemical components of ordinary glass are soda ash, limestone and quartz. During production, the raw materials are crushed, mixed and dispersed according to the appropriate ratio, and then put into the glass kiln to strengthen the heat, and the raw materials are melted and have more complex physical and chemical changes.

2. In the process of manufacturing glass, if some metal oxides are added, colored glass can also be made, for example, the glass after adding cobalt oxide is blue, the glass after adding copper oxide is red, and the ordinary glass is generally light green, because the raw materials are mixed with quietly buried iron.

3. The most common glass is soda-lime glass, including 75% silica, sodium oxide prepared from sodium carbonate, calcium oxide and other additives.

1. The main chemical components of ordinary glass are soda ash, limestone and quartz. During production, the raw materials are crushed, mixed according to the appropriate ratio, and then put into the glass kiln to strengthen the heat, and the raw materials are melted and have more complex physical and chemical changes.

2. In the process of manufacturing glass, if some metal oxides are added, colored glass can also be made, for example, the glass after adding cobalt oxide is blue, the glass after adding copper oxide is red, and the ordinary glass and liquid grip are generally light green, because the raw materials are mixed with bivalent iron.

3. The most common glass is soda-lime glass, including 75% silica, sodium oxide and calcium oxide and other additives prepared by carbonated sodium and so on.

1. Sakura Trace God Glass is an amorphous inorganic non-metallic material, which is generally made of a variety of inorganic minerals (such as quartz sand, borax, boric acid, barite, barium carbonate, limestone, feldspar, soda ash, etc.) as the main raw material, and a small amount of auxiliary raw materials are added. Its main components are silica and other oxides.

2. The chemical composition of ordinary glass is Na2SiO3, Casio3, SiO2 or Na2O·Cao·6SiO2, etc., and the main component is silicate double salt, which is an amorphous solid with irregular structure. It is widely used in buildings to insulate wind and light, which is a mixture. In addition, there are colored glasses that are mixed with oxides or salts of certain metals to show color, and tempered glass that is prepared by physical or chemical methods.

Some transparent plastics (such as polymethyl methacrylate) are sometimes referred to as spinal plexiglass.

The raw materials of glass are generally a variety of inorganic minerals, including quartz sand, borax, boric acid, barite, barium carbonate, soda ash, etc. Glass is a very common material in life, which is widely used in the construction industry, medical industry, instrument industry, art industry, etc. The following is a specific introduction to "what is the raw material of glass, the raw material of glass", interested friends can continue to read and understand.

1. Quartz sand: It is a non-metallic mineral, milky white or colorless, widely used in glass, ceramics, fireproof materials, metallurgy, construction, chemical industry, rubber and other industries.

2. Barite: It appears in the form of nodules, often gray, light yellow, etc., and is an important non-metallic mineral raw material with a wide range of uses.

3. Barium carbonate: white powder, containing toxicity, used in electronics, instrumentation, metallurgy and other fields, with a wide range of uses.

4. Borax: also known as moonstone, sodium decahydrate, is a white powder, which can be used in cleaning, beauty, agriculture and other fields, and has a wide range of uses.

The chemical composition of <> glass is: SiO2, Na2SiO3, Na2O·Cao·6SiO2, Casio3, etc. By reading the above specific introductions of "what are glass raw materials, raw materials of glass" and "what is the chemical composition of glass", I hope to provide you with a reference.

What is the chemical composition of glass? Let's take a look.

The main components of ordinary glass are: silicate [Na2SiO3, Casio3, SiO2 or Na2O, CaO, 6SiO2, etc.], only pure quartz glass [optical fiber] is composed of only silicon dioxide (SiO2). In addition to light guides, there are many other glass fibers, such as electronic fibers, high-modulus fibers, chemical-resistant fibers and so on.

Temperedglass reinforcedglass belongs to safety glass. Tempered glass is actually a kind of prestressed glass, in order to improve the strength of the glass, chemical or physical methods are usually used to form compressive stress on the surface of the glass, and the glass first counteracts the surface stress when it bears external force, thereby improving the bearing capacity and enhancing the wind pressure resistance, cold and heat resistance, impact and so on. After tempering, uniform compressive stress is formed on the surface of the glass, and tensile stress is formed inside, so that the bending and impact strength of the glass can be improved, and its strength is about four times more than that of ordinary annealed glass.

What are the main components of glass? Silver Shirt Row.

1.Silicon. 2.Calcium.

Correct Answer: Silicon.

Glass is an amorphous inorganic non-metallic material, which is generally made of a variety of inorganic minerals (such as quartz sand, borax, boric acid, barite, barium, barium carbonate, limestone, feldspar, soda ash, etc.) as the main raw material, and a small amount of auxiliary raw materials are added. Its main components are silica and other oxides. The chemical composition of ordinary glass is Na2SiO3, Casio3, SiO2 or Na2O·Cao·6SiO2, etc., and the main component is silicate double salt, which is an amorphous solid with random collapse structure.

Therefore, the main component of glass is silicon Si.