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.

Sunscreen mechanism of zinc oxide

Submitted by admin on Fri, 10/19/2018 - 08:14

Zinc oxide is an important and widely used physical sunscreen. The principle of UV shielding is absorption and scattering. Zinc oxide belongs to the N-type semiconductor, and the electrons on the valence band can accept the energy transition in the ultraviolet light, which is also the principle that they absorb ultraviolet light. The function of scattering ultraviolet rays is related to the particle size of the material.

Industrial use of Cobalt

Submitted by admin on Thu, 10/18/2018 - 09:01

The physical and chemical properties of Cobalt determine that it is an important raw material for the production of heat-resistant alloys, hard alloys, anti-corrosion alloys, magnetic alloys and various Cobalt salts. Cobalt-based alloys or Cobalt-containing alloy steels are used as vane blades, impellers, ducts, jet engines, rocket engines, components of missiles, and various high-load heat-resistant components in chemical equipment and important metal materials for the atomic energy industry.

What is Osmium?

Submitted by admin on Thu, 10/18/2018 - 08:31

The metal Osmium is gray-blue and is a metal whose density is only lower than ruthenium in the known elements. Osmium is a dense hexagonal crystal structure. It is a very hard metal. It is hard and brittle at high temperature.

The crustal abundance of Osmium is 1×10-7%. It is mainly produced in chromite, copper iron ore and sand mines related to basic and ultrabasic rocks, and a few are produced in molybdenum ore. The main mineral is an intermetallic compound formed with rhodium, and contains a small amount of rhodium and platinum.

Application of cobalt oxide

Submitted by admin on Wed, 10/17/2018 - 06:41

Cobalt oxide is an important transition metal oxide. It is commonly used as a major raw material for the production of cemented carbides, superalloys, insulating materials and magnetic materials, as well as catalysts and dyes in the chemical industry. At present, the main application fields of cobalt oxide products in China are as follows:

Production methods of zinc oxide

Submitted by admin on Tue, 10/16/2018 - 06:43

1. Direct method: using zinc concentrate as raw material, after high temperature oxidation roasting and then adding coal to reduce to zinc vapor, zinc vapor and hot air are oxidized to obtain zinc oxide. The main raw materials used now are zinc ore, zinc ash, etc. There are generally several types of kiln structures:

Precautions for Titanium tetrachloride

Submitted by admin on Mon, 10/15/2018 - 06:37

Name: Titanium tetrachloride
Molecular formula: Cl4Ti
CAS number: 7550-45-0
Structural formula: Titanium tetrachloride

Physical properties: Colorless or yellowish liquid, pungent sour, smoke in the air. The vapor pressure was 1.33 kPa (21.3 ° C), mp -24 ° C, boiling point 136.4 ° C, and d 1.726 g / cm 3 . It is soluble in THF, CH 2 Cl 2 , toluene.

Preparation and commodity: Titanium tetrachloride is sold in major reagent companies. Industrially, it is obtained by mixing titanium dioxide and carbon powder, and then introducing chlorine gas at 600 ° C.

What is Monocrystalline silicon solar cell

Submitted by admin on Mon, 10/15/2018 - 04:03

The monocrystalline silicon solar cell is a solar cell made of a high-purity single crystal silicon rod, and is currently the fastest developed solar cell. Its construction and production process have been finalized and its products have been widely used in space and on the ground.

Solar cells mainly include crystalline silicon cells and thin film cells, and their respective characteristics determine that they have an irreplaceable position in different applications.