Does tin have oxides? Why is tin oxidized?

Tin is oxidized to SNO2 at room temperature, and ignition at high temperature also produces SNO2, but the reaction is more violent.

Equation: SN+O2(ignite) = SNO2

As for tin oxide and tin tetroxide, it can also be generated theoretically.

This has been mentioned in the news.

It is possible to generate when burned (because the low price is stable for p-block metals), but you can infer from your knowledge of chemistry

You can compare tin to iron: sn2o3 = sno2 + sno (tin is the fourth main group, and bivalent compounds are also stable and stable).

And sn3o4=sno2+2sno

This may help you understand, but the real structure will have to wait for chemists to determine it using various diffraction methods.

I'll let you know if there's an update.

sn+o2==(high temperature) SNO2

Kyoto University, Japan.

Professor Ko Tanaka and other scientists designed a program for the state of motion of atoms according to the motion of electrons, and then used dozens of computers to calculate the tin atom and oxygen atom in two months.

How to combine. Their findings suggest that in addition to the existing tin oxides, tin oxide and tin tetroxide may also be stable, making it theoretically possible to synthesize these two compounds.

As for whether it can be formed after combustion, it depends on the continued research of chemists.

sn+o2==sno2, (add a high temperature to the equal sign) it's that simple!!

Tin is susceptible to oxidation under heated conditions.

Tin is malleable at room temperature. Especially at 100 °C, it is very malleable and can be rolled into extremely thin tin foil. Usually, people use tin foil to package cigarettes and candies to prevent moisture (in recent years, China has gradually replaced tin foil with aluminum foil.

Aluminium foil is easy to distinguish from tin foil – tin foil is much brighter than aluminium foil). However, the ductility of tin is very poor, and it breaks when it is pulled and cannot be drawn into filaments.

In fact, tin is only malleable at room temperature, and if the temperature drops below it, it will gradually turn into a loose powder like coal ash. In particular, in the presence of -33 or an alcohol solution with red salt (SNCL4·2NH4Cl), the rate of this change is greatly accelerated.

A well-ended tin pot will "automatically" turn into a pile of powder. This tin "disease" can also be transmitted to other "healthy" tin ware, which is known as the "tin plague". The cause of tin plague is due to a change in the crystal lattice of tin

At room temperature, tin is the crystal structure of a square crystal system, called white tin.

Tin Song Meng will oxidize.

Metal tin is stable by forming a tin dioxide protective film on the surface of tin in the air, and it is not easy to be oxidized at room temperature, and often maintains the shiny luster of silver, so it needs to be heated. When the tin is heated, the oxidation reaction will be accelerated and become tin dioxide.

Main Uses of Tin:

1. It is used as tin solder in the electronics industry, playing the role of mechanical connection, electrical connection and heat exchange.

2. It is used in the manufacture of tinplated sheets, such as tinplate as food and beverage packaging materials.

3. Tin compounds can be used as raw materials for enamel of ceramics, mordants for printing and dyeing silk fabrics, heat stabilizers for plastics, fungicides and insecticides.

Characteristics of tin: 1. Metal tin is soft, easy to bend, melting point, boiling point 2260 humming. There are three types of allotropes:

White tin is a tetragonal crystal system, unit cell parameters: a=, c=, the unit cell contains 4 sn atoms, the density is cubic centimeters, the hardness is 2, and the ductility is good;

Gray tin is a diamond-shaped cubic crystal system, unit cell parameters: a=, the unit cell contains 8 sn atoms, and the density is cubic centimeters;

Brittle tin is an orthorhombic crystal system with a density of cubic centimeters.

2. Tin is a silvery-white soft metal, with a specific gravity and a low melting point, only 232 years old in Yingzhou, put it into a briquette furnace, and it will melt into a mercury-like liquid.

3. The tin is very soft and can be cut with a knife.

4. Tin is non-toxic, and people often plate it on the inner wall of the copper pot to prevent copper and warm water from producing toxic patina (basic copper carbonate). <

Tin is susceptible to oxidation under heated conditions.

Tin is malleable at room temperature. Especially at 100 °C, it has very good leakage and can be rolled into extremely thin tin foil.

Tin is a metallic element, a low-melting metallic element with a bluish white luster, which is divalent or tetravalent within the compound, is not oxidized by empty ear gas, and exists mainly in the form of dioxide (cassiterite) and various sulfides (e.g. thiossiterite). Element symbol sn.

Tin is one of the hardware, gold, silver, copper, iron, and tin. Tin has been discovered and used since ancient times. In some ancient tombs in our country, some tin pots, tin candlesticks and other tin utensils are often excavated.

According to research, during the Zhou Dynasty in China, the use of tin ware was very common. In the ancient tombs of Egypt, it was also found that there were daily necessities made of tin.

The role of tin: 1. Solder.

Solder: It mainly refers to the solder with a low melting point made of tin-based alloys. With the development of the industry and the introduction of EU environmental protection requirements, the gradual replacement of lead solder by lead-free solder is an inevitable trend in the development of the global electronics manufacturing industry.

At the same time, tin solder is the main application of tin in the electronics industry, used for electronic soldering, which currently accounts for 70% of the downstream applications of tin in China, and tinned steel plates and tin chemicals account for 8% and 12% of the downstream applications respectively.

2. Tin plate.

Tin plate, commonly known as tinplate, has good sealing, preservation, light protection, firmness, corrosion resistance, non-toxic and has a unique metal decoration charm, is widely used in food packaging industries such as canned food, beverages, military, instrumentation, electrical appliances and other industries.

Among them, in the field of packaging, it is an internationally used packaging variety. Tin plate is also one of the important areas of tin consumption, accounting for 30% of its total consumption (2010 data). Wait. <>

Tin is susceptible to oxidation under heated conditions.

Tin is an important common metal, which is inert, generally does not react with air and water, reacts slowly with dilute hydrochloric acid, and reacts with concentrated hydrochloric acid to form stannous chloride; It does not react with dilute sulfuric acid, and reacts with concentrated hot sulfuric acid to form denier tin sulfate; with concentrated hot nitric acid to form -stanic acid. It can be seen that the chemical properties of tin are relatively stable.

And because the metal tin rises on the surface of the tin in the air to form a tin dioxide protective film and is stable, it is not easy to be oxidized by mold disturbance under normal temperature conditions, and often maintains the shining luster of silver, so it needs to be heated. When the tin is heated, the oxidation reaction will be accelerated and become tin dioxide.