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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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+86 180 5010 0836

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+86-592-5365868

 

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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.

Blog

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.

Processing technology of Monocrystalline silicon manufacturer

Submitted by admin on Thu, 12/20/2018 - 08:49

Below I wil introduce some production processes of Monocrystalline silicon:

Adding -→ Melting - → Necking Growth - → Shoulder Growth - → Equal Path Growth - → Tail Growth

(1) Feeding: The polycrystalline silicon raw materials and impurities are placed in a quartz crucible, and the type of impurities depends on the N or P type of the electric resistance. Impurities are boron, phosphorus, antimony and arsenic.

Nd2O3 neodymium oxide for sell

Submitted by admin on Thu, 12/20/2018 - 08:39

Nd2O3 neodymium oxide is mainly used as a coloring agent for glass and ceramics, a raw material for metal ruthenium and a raw material for ferromagnetic NdFeB. Here with the detailed description of Nd2O3 neodymium oxide; 

Project high purity 3N level: 3N
Cas number:1313-97-9
Molecular formula: Nd2O3
Molecular weight: 336.47
Density: 7.24
Melting point: 2211 °C Project high purity 4N grade

Supply the Albite powder for sell

Submitted by admin on Wed, 12/19/2018 - 08:59

 

The basic structural unit of feldspar is a tetrahedron, which consists of four oxygen atoms surrounding a silicon atom or an aluminum atom. Each such tetrahedron shares an oxygen atom with another tetrahedron to form a three-dimensional skeleton. Large radius alkali or alkaline earth metal cations are located in large voids within the framework with coordination numbers of 8 (in monoclinic feldspar) or 9 (in triclinic feldspar).

Micron size platinum powder for sell

Submitted by admin on Tue, 12/18/2018 - 08:37

A platinum powder of micron size with a spherical shape and a polygonal shape. The solid density is 1.0 to 4.0 g/cm3. The average particle size is 1.1 to 1.7 μm. The specific surface area is 5 to 15 m 2 /g. Dissolve sponge platinum with aqua regia to obtain chloroplatinic acid solution, adjust acidity, add dispersant, heat stir, add reducing agent (hydrazine hydrate, etc.), let stand cooling, wash and dry to obtain average particle size 0.5μm Fine platinum powder. 

Supply stannic oxide (SnO2) for sell

Submitted by admin on Mon, 12/17/2018 - 08:39


Stannic oxide SnO2 is also an excellent transparent conductive material. It is the first transparent conductive material to be put into commercial use. In order to improve its conductivity and stability, it is often used for doping, such as SnO2:Sb, SnO2:F, etc. Both SnO2 and its doping have a tetragonal rutile structure. Red is O, black is Sn, and SnO2 is composed of two Sn and four O atoms. The lattice constant is a=b=0.4737nm, c=0.3186nm. , c / a = 0.637. O2-=0.140 nm, Sn4+=0.071 nm.

Lead stearate dibasic manufacturer

Submitted by admin on Fri, 12/14/2018 - 07:36


Lead stearate dibasic is a white powder, insoluble in water, soluble in hot ethanol, benzene and turpentine. It is heated and dissolved in an organic solvent and cooled to form a gel. It is decomposed into stearic acid and the corresponding salt in the presence of strong acid, and is hygroscopic. This product is toxic and susceptible to sulfide contamination. Do not dissolve in water, soluble in hot ethanol. Melting point 103-110 ° C