Manganese nitride is an additive in iron-making. Adding a certain amount of manganese nitride in steel smelting can improve the strength and mechanical properties of steel. Therefore, manganese nitride is an indispensable alloying agent in the production of special alloy steel and stainless steel. But manganese nitride will be affected by some factors in production.

Iron nitride is an inorganic compound, gray powder, insoluble in water, and may release ammonia after heating or exposure to humid environment.The appearance of iron nitrides is basically grey powder. Iron has four kinds of nitrides: Fe2N, Fe3N1 + x, Fe4N and Fe16N2. They are crystalline metallic solids.

Nickel-coated graphite powder is a composite powder with graphite particles as its core and nickel metal as its outer coating. With good lubrication and corrosion resistance, nickel was evenly deposited on the surface of graphite particles from nickel sulfate ammonia complex solution by wet hydrogen reduction It was used to manufacture high temperature self-lubricating bearing materials, low friction materials, porous nickel strips, etc. Grindable sealing coatings can also be obtained by thermal spraying.

Metal powders are prepared by electrolysis  atomization and ball milling. All of them are physical changes, so electrolytic manganese is manganese powder.Electrolytic manganese metal is the main material for manufacturing manganese trioxide. In addition, because of its high purity and low impurity, it is an important alloy element for producing stainless steel, high strength low alloy steel, Al-Mn alloy, copper-manganese alloy, etc.

Nickel powder is also divided into carbonyl nickel powder, uniform color, no caking and reunion, no visible inclusions. It is mainly used for coatings and plastics as conductive pigments to shield electromagnetic interference and radio frequency interference, for various high gloss decorative paints and plastics, instead of aluminium powder as anticorrosive paint in water system, etc.

Tungsten powder-like metallic tungsten is a metallic luster gray-black metal (body-centered cubic crystallization). It is the raw material for preparing tungsten processing materials, tungsten alloys and tungsten products.

Rhodium trichloride, also known as rhodium chloride, is a kind of red-brown powder, easy to deliquescence. Used in electronics, instrumentation, metallurgy and other industries, also used in electroplating operations, catalyst preparation.Rhodium trichloride trihydrate is a kind of Lewis acid, which can form various complexes with ligands.

Fe-Si-Al alloy is an alloy powder of 85% Fe, 9% Si and 6% Al, which is processed by special process and pressed into ring or E-type magnetic powder cores. It is commonly called Kool M_ u magnetic powder cores or Sendust  powder  in the market.

Nanometer iron oxide is a multifunctional material. When the size of iron oxide particles is small to nanometer scale (1-100 nm), the number of surface atoms, specific surface area and surface energy of iron oxide particles increase sharply with the decrease of particle size, which shows the characteristics of small size effect, quantum size effect, surface effect and macroscopic quantum tunnel effect.

Beryllium sulfate is a kind of white powder or cubic crystalline crystals, soluble in water, insoluble in organic solvents, highly toxic, and highly carcinogenic substance. It can cause dermatitis, ulcer and skin granuloma after absorption by human body. Industrial applications include beryllium salts, ceramics and chemical reagents.