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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.

What is the ytterbium oxide

Submitted by admin on Tue, 12/04/2018 - 09:55

What is the ytterbium oxide? For this many people may not know, ytterbium oxide is a kind of coating material, here is introduced:

Ytterbium oxide, namely the Ytterbium trioxide (Ytterbium oxide) formula: Yb2O3; Molecular weight: 394.08;

Properties: white with pale green powder, density: 9.17 g/cm3, melting point: 2372 ℃, boiling point: 4070 ℃.

Properties: insoluble in cold water and acid, soluble in dilute acid.

The purpose of the Silicon-dioxide

Submitted by admin on Tue, 12/04/2018 - 09:53

Silica, chemical terms, the pure silica colorless, normal temperature is solid, chemical formula for the SiO ₂, insoluble in water. Does not dissolve in acid, but soluble in hydrofluoric acid and thermal phosphoric acid concentration, the can and molten alkali class work. Exists in the nature, which has two kinds of crystalline silica and amorphous silica.

Where is the good ytterbium oxide

Submitted by admin on Mon, 12/03/2018 - 09:31

Where is the good ytterbium oxide? There may be a lot of people who don't know about it, but here's the introduction to it:

Ytterbium oxide is the molecular formula of Ytterbium oxide. Molecular weight: 394.08;

Properties: white with pale green powder, density: 9.17 g/cm3, melting point: 2372 ℃, boiling point: 4070 ℃.

Properties: insoluble in water and cold acid, soluble in warm dilute acid.

Application: for heat shielding coating materials, electronic materials, active device materials, battery materials, bio-pharmaceutical, etc.

Where is the good samarium oxide

Submitted by admin on Mon, 12/03/2018 - 09:29

Where is the good samarium oxide? For many people, the samarium oxides may be rarely heard, and here's the introduction to it:

Sm2O3 is a slightly yellowish white powder, body centred cubic or monoclinic. The chemical properties of rare earth oxides are similar, and samarium oxide is no exception, but its magnetic moments are different from other oxides, 1.45 M · B. The density of 8.347 g/cm3. Melting point is 2262 ℃. Insoluble in water, soluble in acid. It absorbs carbon dioxide and water in the air.

What is a titanium oxide

Submitted by admin on Mon, 12/03/2018 - 09:26

What is a titanium oxide? For this kind of coating material, which may be a lot of people don't know, here is the introduction to it:

Titanium oxide is a kind of chemicals, alias titanium sesquioxide, molecular weight of 143.73, CAS number 1344-54-3.

Classification and application of silicon aluminum alloy

Submitted by admin on Fri, 11/30/2018 - 09:08

Industrially important silicon aluminum alloys can be divided into four categories:
(1) The hypoeutectic silicon aluminum alloy contains 9% to 12% of silicon.
(2) The eutectic silicon aluminum alloy contains 11% to 13% of silicon.
(3) The silicon content of the hypereutectic silicon aluminum alloy is above 12%, mainly in the range of 15% to 20%.
(4) If the silicon content is above 22%, it is called high-silicon aluminum alloy, of which 25%-70% is the main, and the silicon content is international.
Up to 80%.

The application of Silicide

Submitted by admin on Thu, 11/29/2018 - 09:51

Binary compounds of certain metals (such as lithium, calcium, magnesium, iron, chromium, etc.) and certain non-metals (such as boron) and silicon. It is generally crystalline, metallic, hard and has a high melting point. A metal or non-metal can produce a variety of silicides. For example, iron can produce FeSi, FeSi2, Fe2Si5, Fe3Si2, Fe5Si3, and the like. It can be obtained by reduction of metal (or non-metal) oxide or metal silicate with silicon in an electric furnace.