Metal materials

Nonferrous metal, Rare metals, Rare And Noble Metal, Metal powder.

Nano materials

Nanometer TiO2 Series, Nanometer SiO2 Series,Nanopowder,Graphene.


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Production of tin nanometric powders by hydrogen DC claret arc evaporation.

About us

Gerhold Chemetals Co., Ltd is a German company founded both in Germany and China in 1997.


Yttrium oxide for sale.

Silver nitrate uses.

Gerhold Chemetals Co., Ltd.

  Gerhold Chemetals Co., Ltd is a German company founded both in Germany and China in 1997, focuses on research and development of Metallic powders, Metal Compounds nano powders. We can customize products according to customers’ special requirements.

  Our technologies are from Elektrotechnik University, Aachen University, München University and Beijing University.


 The advantages of our products:

   1. Uniform particle size 
   2. invariant Shape
   3. High purity, reach 99.999999
   4. Good dispersion


  In worldwide market, Gerhold Chemetals has sold products to more than 50 countries. We will keep on developing and enlarging business by our advantages.

Application of cadmium oxide

Submitted by admin on Tue, 07/09/2019 - 01:45

Chemical formula CdO for cadmium oxide. Green-yellow, reddish-brown or blue-black crystals or powders, insoluble in water, soluble in dilute acids and ammonium salts. Used for silver solder, glass making, electrodes, anti-nematode agents, organic reaction catalysts, ceramic glaze and cadmium plating. CdO smoke is produced when cadmium or its compounds are processed at high temperature.

Nb2O5 Powder

Submitted by admin on Mon, 07/08/2019 - 01:50

Niobium pentoxide is a white powder. is a typical n-type transition metal oxide semiconductor with a band gap of 3.4-5.3 e V, a melting point of 1485 (+5 C) and a relative density of 4.47 g/cm. Niobium pentoxide has high chemical stability. It is insoluble in water and acid (except sulfuric acid and hydrofluoric acid), and can dissolve in alkali metals, carbonates and hydroxides in molten state. Niobium pentoxide is a kind of multi-morphology oxide.

Arsenic copper alloy

Submitted by admin on Mon, 07/08/2019 - 01:39

Arsenic-copper alloy is a brown-red ingot-like Babbitt alloy, a bearing material, and the only material suitable for low hardness shaft rotation. Compared with other alloys, it has better adaptability and indentation. Because of its good wear resistance, casting, rubbing-in and chemical stability, it is widely used in ship machinery, hydroelectric machinery, cement machinery, paper machinery and mineral industry.

Metal cobalt powder

Submitted by admin on Fri, 07/05/2019 - 02:26

Metal cobalt powder: The appearance is gray, and the particle shape is spherical or irregular, which depends on the smelting process. It is mainly used in powder metallurgy, thermal spraying and so on.

Tourmaline powde

Submitted by admin on Thu, 07/04/2019 - 02:39

Tourmaline powder is mainly composed of tourmaline powder, ultrafine tourmaline powder and nanometer tourmaline powder according to its use and particle size. Applicable industries include: environmental protection, cigarettes, coatings, textiles, cosmetics, water purification, air purification, electromagnetic radiation protection, health care products, etc.tourmaline powder


Submitted by admin on Wed, 07/03/2019 - 02:16

Yttrium, chemical symbol Y. It is the first rare earth metal element to be discovered. It is a grey ferrous metal with ductility. It reacts with hot water and is soluble in dilute acid. Special glass and alloy can be made.Yttrium is a rare earth element

Nano grade anion powder

Submitted by admin on Wed, 07/03/2019 - 02:09

Nano grade anion powder is elaborately made from natural materials through nanotechnology. Scientific research shows that nano-anion powder is of great help to keep energetic and improve human living environment.

The main uses of nano-anion powder are as follows:

Hydroxylated grapheme

Submitted by admin on Tue, 07/02/2019 - 02:09

Hydroxylation and hydroxylation graphene belong to functional graphene.Generally, graphite and alkali metal solids are milled continuously in a high energy ball mill, and graphene dispersed in water is treated with low frequency and high voltage pulse current. Hydroxyl-only water-soluble graphene can be obtained.


Submitted by admin on Tue, 07/02/2019 - 01:44

Vanadium is a malleable metal, but vanadium containing oxygen, nitrogen or hydrogen is brittle. Vanadium is a poor conductor of electricity and its conductivity is only one-tenth that of copper. At room temperature, fine vanadium is stable to oxygen, nitrogen and hydrogen. When heated in air, vanadium is oxidized to brown-black, blue-black vanadium tetroxide, or orange-red vanadium pentoxide. Under low temperature (180 ℃), the effect of vanadium and chlorine. Vanadium carbide and vanadium nitride were formed with carbon and nitrogen at high temperature.