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%.
Nonferrous metal, Rare metals, Rare And Noble Metal, Metal powder.
Nanometer TiO2 Series, Nanometer SiO2 Series,Nanopowder,Graphene.
Production of tin nanometric powders by hydrogen DC claret arc evaporation.
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.
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.
Main uses of Nano-Bismuth oxide:
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) 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.
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:
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.
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.
Thorium oxide, molecular formula ThO 2, is radioactive. It is used for making high temperature ceramics, atomic fuel, incandescent lamp, cathode of electron tube, electrode for arc melting, optical glass, refractory material and catalyst.
Titanium nitride is a new kind of multifunctional cermet material. It has high melting point, high hardness and low friction coefficient. It is a good conductor of heat and electricity.