Metal materials

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

Nano materials

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


+86 180 5010 0836





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.

Titanium dioxide

Submitted by admin on Thu, 06/06/2019 - 01:19

Nano-titanium dioxide is a white loose powder with strong UV shielding effect, good dispersion and weather resistance. It can be used in cosmetics, functional fibers, plastics, coatings, paints and other fields, asTitanium dioxide,Titanium ultraviolet shielding agent, to prevent ultraviolet damage. It can also be used in high-grade automotive topcoat with angular heterochromic effect.

Stainless steel powder

Submitted by admin on Mon, 06/03/2019 - 01:26

Stainless steel powder is in the shape of particles. It has good corrosion resistance and durability. Its flaky particles can be positioned parallel to the surface of the coating film and distributed throughout the coating film to form a shielding layer with excellent hiding power to block moisture.

Silver Powder

Submitted by admin on Mon, 06/03/2019 - 01:16

Aluminum powder has silver-white metallic luster, so it is commonly known as ALUMINIUM-SILVER powder or silver powder. Its chemical composition is actually "aluminium", not "silver".

Aluminum powder is mainly used in powder coatings, inks, plastic masterbatches, printing, imitation gold paper, imitation gold cards, gold film, textiles, but in water-based paints and paints with acid and alkali, it will be oxidized and blackened. It is not recommended for applications requiring acid and alkali resistance and combination with rainwater.

Iron silicon aluminum alloy

Submitted by admin on Mon, 06/03/2019 - 01:08

Iron-silicon-aluminum alloy is an alloy powder of 85% iron, 9% silicon and 6% aluminum. It is processed into a ring or E-type magnetic powder core by special process. It is commonly called Kool Mμ magnetic powder core or Sendust magnetic powder core. .

what is Ruthenium trichloride

Submitted by admin on Fri, 05/31/2019 - 02:25

Ruthenium trichloride is a chemical substance and its molecular formula is RuCl3. It is a lustrous crystal grain, generally grayish brown or dark red, corrosive and highly deliquescent. Used in heterogeneous catalysis or homogeneous catalysis, electroplating, electrolytic anodes, electronics industry and other important chemical raw materials.

Ruthenium penta carbony

Submitted by admin on Fri, 05/31/2019 - 02:17

Pentacarbonyl ruthenium is an organic ruthenium compound having the formula Ru(CO)5. It is a colorless, light-sensitive liquid that is easily decarbonylated when allowed to stand at room temperature. It is of academic significance as an intermediate for the synthesis of metal carbonyl complexes.

Pentacarbonyl ruthenium point -22°C. Insoluble in water, soluble in organic solvents. Volatile, it is difficult to produce pure products. It is unstable and easily generates tridecacarbonyl tris[Ru3·(CO)12]. Used as an oxidation catalyst.

what is Ruthenium ingot

Submitted by admin on Fri, 05/31/2019 - 02:11

Ruthenium belongs to the platinum group metals (PGMs) and is exceedingly rare. Worldwide annual production is estimated between 12 and 20 tonnes of ruthenium compared to 2700 tonnes of gold. It is corrosion and wear resistant and its alloys can be superconductive. It has other unusual and unique properties and has applications in electronics, chemical and solar power industries.

Rubidium chloride

Submitted by admin on Thu, 05/30/2019 - 02:12

Rubidium chloride is an alkali metal halide with the chemical formula RbCl. This inorganic salt has different applications in the fields of electrochemistry and molecular biology. White crystalline powder, soluble in water, slightly soluble in alcohol.

Rubidium chloride is hygroscopic, so it must be isolated from moisture in the atmosphere, such as the use of desiccants. RbCl is mainly used in laboratory. Therefore, many chemical reagent manufacturers can provide different amounts of rubidium chloride to meet various chemical and biochemical research needs.


Submitted by admin on Thu, 05/30/2019 - 02:10

Rhodium trichloride, also known as rhodium chloride, is a kind of red-brown powder, easy to deliquescence. Toxic! Molecular weight 209.26 (anhydrous), melting point 450-500 ("decomposition"). Boiling point 800 ("sublimation"). Polyfluorides are formed at temperatures above 600 C. It can be reduced by hydrogen at 70 C. It is insoluble in water, acid and aqua regia, and in methanol and cyanide solutions. In concentrated acid (nitric acid, sulfuric acid) heating decomposition. When heated, it can react with sodium, aluminum, magnesium, iron and other metals.

Rhodium wire

Submitted by admin on Thu, 05/30/2019 - 01:40

Rhodium wire has a resistivity of 4.67×10-2 Ω·mm 2 /m, a tensile strength of 726 MPa, and an elongation of 46%. The smelting is carried out by high-frequency furnace argon gas, remelted 2 to 3 times, bottom injection, hot working - cold working into 0.02 mm filament. It is a good high temperature thermocouple material. The Rh-PtRh20 thermocouple has high temperature stability and does not require strict cold junction compensation. The temperature is 1800 °C.