Tin Oxide SnO2 powder CAS 18282-10-5

What is Tin Oxide SnO2 powder ？

Tin oxide has been described as an organic compound with the formula SnO2, one of the oxides of tin. It has the following aspects of description:

Physical properties: Tin oxide is a white powder, sometimes slightly yellowish or grayish. It has a high density (about 6.5 g/cm ³) and good thermal stability. In its pure form, tin oxide is insoluble in water, dilute acid, and alkali solutions.

Chemical properties: Tin oxide is an acid oxide. It can react with alkali to form stannate and with sulfur, phosphorus, and other non-metallic elements to produce the corresponding sulfide, phosphide. At high temperatures, tin oxide can react with carbon, carbon monoxide, hydrogen, and other reducing agents to produce metallic tin.

Structure properties: Tin oxide crystal structure is a rutile type, and the space group is P42/n. Its lattice constant is a=4.758 A and c=3.310 A. Within the crystal structures, the tin atom is located in the octahedral direction, and the oxygen atom is in the tetrahedral location.

Electrical properties: Tin oxide is a semiconductor material with low electrical conductivity. It has a high dielectric constant and dielectric loss factor and can be used to manufacture electronic components such as ceramic capacitors.

Tin oxide for sale:
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Application of Tin Oxide SnO2 powder：

Catalyst and catalyst support:
Tin oxide is an excellent catalyst and catalyst carrier, which can be used in many chemical reaction processes. For example, it can be used in hydrogenation, oxidation, dehydrogenation, etc. In addition, the tin oxide can also be used as a catalyst carrier to improve the activity and selectivity of the catalyst.
In the petrochemical industry, tin oxide can be a catalyst and carrier for high polymers, such as polyethylene and polypropylene. In addition, it can also be used to produce chemicals such as ethylene oxide and ethanol.
Ceramics and Glass industry:
Tin oxide can be used to make ceramics and glass products. It can be used as a colorant and glaze in ceramic production, providing beautiful color and excellent corrosion resistance. In glass production, tin oxide can produce special products such as optical fiber and optical glass.
Photoelectric materials:
Tin oxide is an excellent photoelectric material that can be made into a transparent conductive film for solar cells, liquid crystal displays, and other electronic devices. In addition, the tin oxide can be used as a material for devices such as photodetectors and photodiodes.
Metal tin preparation:
Tin oxide can react with carbon, carbon monoxide, hydrogen, and other reducing agents at high temperatures to produce metallic tin. This process can prepare high-purity metallic tin for electronics, metallurgy, and other fields.
Sensor material:
Tin oxide has good chemical sensitivity and electrical properties and can be used to make chemical and gas sensors. For example, tin oxide is combined with a polymer matrix to produce a new type of hydrogen sensor that can detect the concentration of hydrogen in the air at room temperature.
Solar panels:
Tin oxide can make solar panels an environmentally friendly clean energy conversion material that can convert solar energy into electricity.

Production Method of Tin Oxide SnO2 powder：
Metal tin oxidation method:
The metal tin is heated to a molten state, and then oxygen or air is injected to oxidize the tin in an oxidizing atmosphere to produce tin oxide. The reaction equation is:
Sn + O2 → SnO2
The common processes of this method include the internal combustion method, external combustion method, and melt oxidation method. The internal combustion method is to melt the tin and pour it into the carbon fire together with the flux and burn it to produce tin oxide. The external combustion method is to put the tin block on the stove and use the nozzle to spray air into the surface of the tin block to oxidize the tin block. The molten oxidation method is to put the metal tin into the crucible, then put it into the furnace to heat until melting, and inject oxygen to oxidize the tin.
Ion exchange method in solution:
In soluble tin salt solution, a certain amount of alkaline substance is added to reduce tin ions to metallic tin. Then, an oxidant is added to oxidize tin to produce tin oxide. Common oxidants are nitrate, hydrogen peroxide, and so on. The reaction equation of this method is:
Sn2+ + 2OH- → Sn + H2O
Sn + H2O2 → SnO2 + H2
The common processes of this method include hydrazine hydrate, sodium hypochlorite, and hydrogen peroxide. The hydrazine hydrate method reacts soluble tin salt with hydrazine hydrate to produce tin oxide under acidic conditions. The sodium hypochlorite process reacts soluble tin salt with sodium hypochlorite to produce tin oxide under alkaline conditions. The hydrogen peroxide process reacts soluble tin salt with hydrogen peroxide to produce tin oxide under acidic conditions.
Gas phase oxidation method:
Gas phase oxidation is the reaction of flammable gas or vapor with oxygen to produce tin oxide at high temperatures. The commonly used processes are ammonia catalysis and sulfur dioxide catalysis. The ammonia catalysis method reacts flammable gas with ammonia vapor to produce tin oxide at high temperatures. The sulfur dioxide catalytic method reacts flammable gas with sulfur dioxide vapor to produce high-temperature tin oxide.

Storage Condition of Tin Oxide SnO2 powder：
Tin Oxide SnO2 powder should be stored in dry, cool and sealing of the environment, can not be exposure to air, in addition should avoid the heavy pressure, according to ordinary goods transportation.

Packing & Shipping of Tin Oxide SnO2 powder：

It is packed in double plastic bags inside, which can be filled with argon in vacuum; it can be vacuumed and filled with argon for protection.
Tin Oxide SnO2 powder packing: vacuum packing, 100g, 500g or 1kg/bag, 25kg/barrel, or as your request.
Tin Oxide SnO2 powder shipping: could be shipped out by sea , by air, by express as soon as possible once payment receipt.


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