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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.

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

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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.

about

 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.

Nickel-copper alloys

Submitted by admin on Thu, 08/01/2019 - 02:39

Nickel-copper alloys are mostly used to make components, such as traveling wave tubes and magnetrons, which require high corrosion resistance, high temperature fatigue resistance and so on. Nickel-copper alloy is composed of 60% nickel, 33% copper and 6.5% iron.

High carbon ferrochrome

Submitted by admin on Wed, 07/31/2019 - 06:05

High carbon ferrochrome is natural block.  High chromium is assessed by 50% chromium content. Mainly used in stainless steel, the corrosion resistance of stainless steel mainly comes from chromium. Experiments show that only when the content of chromium exceeds 12%, the corrosion resistance of steel will be greatly improved. Therefore, the content of chromium in stainless steel is generally not less than 12%.

The preparation methods of cuprous oxide

Submitted by admin on Tue, 07/30/2019 - 03:10

Cuprous oxide is an oxide of monovalent copper. It is a bright red powder solid, almost insoluble in water. It is disproportionated into monovalent copper and copper in acidic solution, and gradually oxidized into black copper oxide in wet air. Cuprous oxide is mainly used in the manufacture of anti-fouling paint (used to kill low-grade marine animals), pesticides, as well as various copper salts, analytical reagents, red glass.

Silicon powder

Submitted by admin on Mon, 07/29/2019 - 07:21

Silicon powder is a kind of dust collected and treated by a special trap device in the process of smelting industrial silicon and ferrosilicon in industrial electric furnaces at high temperature. Among the fumes, the content of SiO 2 accounts for about 90% of the total amount of fumes, and the particle size is very small.

Hafnium dioxide (HfO2)

Submitted by admin on Mon, 07/29/2019 - 06:46

Hafnium dioxide (HfO2) is an oxide of hafnium, which is a white solid at room temperature and pressure. Melting point is 2780-2920K. Boiling point 5400K. The coefficient of thermal expansion is 5.8 *10-6/. It is insoluble in water, hydrochloric acid and nitric acid, but soluble in concentrated sulfuric acid and hydrofluoric acid. It is prepared by thermal decomposition or hydrolysis of hafnium sulfate, hafnium chloride and other compounds. It is the raw material for producing metal hafnium and hafnium alloy.

nickel carbonate

Submitted by admin on Fri, 07/26/2019 - 03:05

The molecule formula of nickel carbonate is NiCO3, and its properties are oblique light green crystals, which are decomposed above 300 C. Soluble in ammonia and dilute acid. It is insoluble in water.There are several methods for the synthesis of nickel carbonate:The molecule formula of nickel carbonate is NiCO3

Rubidium chloride

Submitted by admin on Fri, 07/26/2019 - 02:58

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.Rubidium chloride is an alkali metal halide with the chemical formula RbCl.

Germanium dioxide

Submitted by admin on Thu, 07/25/2019 - 02:11

Germanium dioxide, the molecular formula GeO 2, and the electronic formula is the same as carbon dioxide. Dry germanium oxide does not irritate the skin, but it does irritate the conjunctiva. It is white powder or colourless crystals. There are two kinds of hexagonal systems (low temperature stability) slightly soluble in water and insoluble cubic systems. The transition temperature is 1033 C.