What kind of metal is iridium and what is iridium

What are you going to do with iridium? This is ***, the international ** per gram is about 110! It's a rare thing on the market, and one of its uses is to make thermocouples, but I think it seems to be an alloy, not pure iridium.

If you want something like this, there's a place where you can! I've also seen it there, it's Alibaba, you just need to go to this**, iridium or whatever, search for it, there are a lot, if you see which one is satisfied, just go and communicate with the merchant, consult it.

This is the only way I know to get iridium, in fact, I have been looking for iridium for a long time, but it is very difficult to find in the market, and I can only find it online! I think the rest is difficult!

Iridium. 1.Elements: Periodic group VIII platinum elements, symbol IR, atomic number 77, atomic weight, peripheral electron shell configuration 5d76s2, first ionization energy electron volts.

2.Physical properties: Silvery-white metallic, hard and brittle.

During thermal processing, as long as it is not annealed, it can be expanded into filaments and thin sheets; Once annealed, it loses its ductility and becomes hard and brittle. Density grams of cubic centimeters. Melting point 2410+-40c.

Boiling point 4130c. Face-centered cubic crystals.

3.Chemical properties: The chemical properties are very stable, insoluble in acids, slightly soluble in aqua regia; Slightly attacked by molten sodium hydroxide, potassium hydroxide and sodium dichromate. There is a strong tendency to form complexes. The main valencies are +2, +4, +6.

4.History: Iridium, derived from iris, means "goddess of rainbows". In 1803, it was discovered by the Englishman Tennant.

5.Application: Pure iridium is used exclusively in aircraft spark plugs.

It is mostly used to make scientific instruments, thermocouples, resistance wires, etc. It is used as an alloy to enhance the hardness of other metals. It is an alloy formed with platinum (10% IR and 90% PT), which is often used to make international standard meters because of its very small expansion coefficient.

According to the entries in the "Little Dictionary of Chemistry".

Iridium (iridium), a metallic element, element symbol ir, atomic number 77, atomic weight, element name ** in Latin, originally meaning "rainbow". Iridium is found in the earth's crust in parts per million and is often dispersed along with platinum series in various ores of alluvial and placer deposits.

In 1803, when the British chemist Smithson Tenant and the French chemist Descoty dissolved crude platinum with aqua regia, two new elements, osmium and iridium, were discovered from the black powder remaining at the bottom of the vessel.

There are two isotopes in nature: iridium-191 and iridium-193. The artificial radioisotope 192ir is obtained by neutral radiation of the stable element 191ir.

Decay emits rays, half-life, and is commonly used in industrial flaw detection. Iridium is chemically stable. It is the most corrosion-resistant metal group of Bi or Wang, and iridium has extremely high chemical stability to acids and is insoluble in acids.

Only the spongy iridium will slowly dissolve in hot aqua regia, and if it is a dense iridium, even if it is boiling aqua regia, it will not regret that it can corrode; However, in a closed reactor under high temperature pressure, iridium is significantly corroded in aqua regia above 250°C.

The mixed acid composed of 20 parts concentrated hydrochloric acid and 1 part concentrated nitric acid is about 20 times more corrosive to iridium than aqua regia at the same temperature and pressure, so it is commonly used as a reagent for the digestion of metal iridium in chemical analysis.

Summary. Iridium is a rare precious metal, an alloy of platinum and iridium, and its rarity is higher than that of platinum. It has a high melting point, strength, and hardness.

The color is silvery-white, with a strong metallic luster, and a hardness of 7. Relative density, brittle but can be pressed into foil or drawn into filaments at high temperatures, with a high melting point of 2454. Chemically very stable and insoluble in water.

It is mainly used in the manufacture of scientific instruments, thermocouples, resistive aya, etc. Iron-iridium and iridium-platinum alloys with high hardness are commonly used in the manufacture of pen nibs and platinum jewelry. Due to its extremely high melting point and superior corrosion resistance, iridium is widely used in high-level technical fields such as aerospace technology, pharmaceuticals and the automotive industry.

What is Iridium? What is it used for?

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Iridium is a rare precious metal, an alloy of platinum and iridium, and its rarity is higher than that of platinum. It has a high melting point, strength, and hardness. The color is silvery-white, with a strong metallic luster, and a hardness of 7.

Relative density, brittle but this child can be pressed into foil or drawn into filaments at high temperatures, with a high melting point of 2454. Chemically very stable and insoluble in water. It is mainly used in the manufacture of scientific instruments, thermocouples, resistive aya, etc.

The high-hardness iron-iridium and Mori Iridium platinum alloys are commonly used to make pen nibs and platinum jewelry. Due to its extremely high melting point and superior corrosion resistance, iridium is widely used in high-level technical fields such as aerospace technology, pharmaceuticals and the automotive industry.