Tin Sn Powder CAS 7440-31-5

(Tin Sn Powder CAS 7440-31-5)

Overview of Tin (Sn) Powder

Tin powder is a silvery-white shiny soft metal (tetragonal and cubic), ductile. The melting temperature of 231.88 ℃.The boiling point of 2270 ℃.The relative density is 7.28.Tin powder is soluble in concentrated hydrochloric acid, sulfuric acid, aqua regia, concentrated nitric acid, hot caustic solution, slowly soluble in cold dilute hydrochloric acid, dilute nitric acid and hot dilute sulfuric acid, cold caustic solution, in acetic acid more slowly. Stable in air, but tin powder is more easily oxidized, especially in humid air more easily oxidized.Tin powder is a material used in the electronic industry and used as a high purity reagent.

Tin is a natural element in the earth's crust. It is a soft, white, silvery metal that does not dissolve in water. It is found in a brass, bronze, tin and some welding materials.Tin is used to pack cans of food, drinks and aerosols.Tin can combine with other chemicals to form compounds. Combinations with chemicals such as chlorine, sulfur, or oxygen are called inorganic tin compounds (i.e., stannous chloride, stannous sulfide, and stannous oxide). They are used in toothpaste, perfumes, soaps, food additives and dyes.Tin can also combine with carbon to form organotin compounds (i.e., dibutyltin, tributyltin, triphenyltin). These compounds are used in the manufacture of plastics, food packaging, plastic pipes, pesticides, paints and insecticides.Tin, as well as inorganic and organotin compounds, can be found in the air, water, and soil naturally occurring in rocks or near places of mining, manufacture or use. 

Features of  Tin (Sn)  Powder

Grayish green powder, melting point 231.88℃. The boiling point is 2270℃. The relative density is 7.28. Soluble in concentrated hydrochloric acid, sulfuric acid, aqua regia, concentrated nitric acid, hot caustic soda solution, slowly soluble in cold dilute hydrochloric acid, dilute nitric acid and hot dilute sulfuric acid, cold caustic soda solution, dissolve more slowly in acetic acid. It is stable in air, but tin powder is easier to oxidize, especially in humid air. Materials for the electronics industry, used as high-purity reagents.

Specification of Tin (Sn) powder:

How is Tin (Sn) Powder Produced?

Anti-oxidation tin powder preparation methods, including metal melt, spray and other steps, whose character is: the temperature of the molten tin liquid metal melting process control in 295 ~ 310 ℃, it is joined benzene and three azole nitrogen additive in the process of atomization, the addition amount of melted metal tin liquid 0.005% ~ 0.008%, and the weight of the atomization process of ventilation with the high-pressure airflow control in 7 ~ 8.2 m3 / min. The -180 mesh metal tin powder obtained by this method is used in the field of friction materials.

Applications of Tin Sn Powder:

Tin powder is mainly used in the manufacture of solder paste, electric carbon products, friction materials, oil-bearing and powder metallurgy structural materials.It can also be used as metal electrical filler, lubricant and conductive paste.Tin powder can also be used as a wild phase to effectively improve the mechanical and electrical properties of metals and ceramics.Tin is one of the most widely used non-ferrous metals, widely used in metallurgy, electronics, electrical appliances, chemical industry, building materials, machinery and food packaging industries. As lead-free trends continue to develop worldwide, electronics manufacturers will increasingly incorporate tin powder into their products. At the same time, with the increasing awareness of environmental protection, tin powder non-toxic environmental properties will make it in the future will be constantly applied to medicine, chemical industry, light industry, food, health care, art supplies and other packaging fields. The importance of tin powder has become increasingly apparent.

Storage Conditions of tin powder:

The damp reunion will affect its dispersion performance and using effects, therefore, this product should be sealed in a vacuum and stored in a cool and dry room and it should not be exposure to air. In addition, Tin Nanoparticles should be avoided under stress.

Company Profile

NANOTRUN(www.rboschco.com) is a trusted global chemical material supplier & manufacturer with over 12-year-experience in providing super high-quality chemicals and nanomaterials, including boride powder, nitride powder, graphite powder, sulfide powder, 3D printing powder, etc.The company has a professional technical department and Quality Supervision Department, a well-equipped laboratory, and equipped with advanced testing equipment and after-sales customer service center.If you are looking for high-quality zirconium plate steel metals, please feel free to contact us or click on the needed products to send an inquiry. 

Payment Term

L/C, T/T, Western Union, Paypal, Credit Card etc.

Shipment Term

By sea, by air, by express, as customers request.

Storage Conditions

1) Store in a dry environment at room temperature.

2) Avoid damp and high temperature.

3) Use immediately after opening the inner packing bag.

FAQ

Q1

Is tin powder stable?

Tin powder is soluble in concentrated hydrochloric acid, sulphuric acid, aqua regia, concentrated nitric acid, and hot caustic solution. It is also slowly soluble in cold dilute hydrochloric acid, dilute nitric acid, hot dilute sulphuric acid, cold caustic solution, and more slowly dissolved in acetic acid. Tin powder is stable in air, but it is easier to oxidise, especially in humid air.

Q2

Tin dust can cause fire and explosion？

Tin dust is flammable and explosive, and if the conditions are met, it can cause fire and explosion. To monitor the concentration, dust meters need to be installed at the place of use.

Q3

What are the morphologies of tin dust?

Common powder shapes include spherical, cubic, flaky, etc., and the particle size can be adjusted according to the need. Generally speaking, smaller particle-size tin powder has better fluidity, making it easier to achieve uniform coating and fine spraying.

Q4

What are the application areas of tin powder?

It is used in various applications, markets and technologies, such as diamond tools, powder metallurgy, electronics and radiation shielding. Typical applications may include pressed and sintered components, bearings and bushings, metallurgical alloying, chemical processes, friction components, surface engineering, decoration, soldering and brazing.

Q5

What is the method of making tin powder?

The centrifugal atomisation method of making conventional tin powder is widely used in industry. The main mechanism is to fill a large airtight container with an inert gas. A high-speed rotating disc is fixed at the top of a high-speed motor, and the disc speed is adjustable; the molten liquid alloy with qualified composition check is flowed (dripped) to the rotating disc through a pipe, and the centrifugal force generated by the rotation of the disc throws out the liquid solder, which, driven by the surface tension of the metal droplets, balloons into small droplets, which cool down under the inert gas environment to form spherical metal particles, which are gathered at the bottom of the closed container, and tin powder is finally obtained.