The zinc selenide material is a yellow transparent polycrystalline material having a crystal grain size of about 70 μm and a light transmission range of 0.5-15 μm. The synthesis by the chemical vapor deposition (CVD) method is substantially free of impurity absorption, and the scattering loss is extremely low. Due to the small absorption of 10.6 μm wavelength light, it is the material of choice for making optics in high power CO2 laser systems.
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.
Zirconium oxide (ZrO2) is a natural zirconia mineral raw material mainly composed of oblique zircon and zircon. Zircon is a deep mineral of igneous rock. Its color is yellowish, brownish yellow, yellowish green, etc. It has a specific gravity of 4.6-4.7 and a hardness of 7.5. It has a strong metallic luster and can be used as a raw material for ceramic glaze. Pure ZrO2 is a high-grade refractory raw material with a melting temperature of about 2900 ° C.
Zinc sulfide is a white to gray or light yellow powder. See the light color darken. It is stable in dry air and gradually oxidizes to zinc sulfate when it is exposed to humid air or contains moisture. Soluble in dilute mineral acid, soluble in alkali, insoluble in water.
Magnesium hydrogen phosphate mainly has three hydrates of anhydrous, trihydrate and heptahydrate, colorless or white orthorhombic crystal or powder; slightly soluble in water, soluble in dilute acid, insoluble in ethanol, relative density 2.013; heated to 205 At ° C, one molecule of crystal water was removed. It is decomposed into pyrophosphate when heated to 550-650 °C. Magnesium hydrogen Hydroxide heptahydrate was heated to 110 ° C to form magnesium hydrogen phosphate trihydrate, and magnesium hydrogen phosphate trihydrate was heated to 205 ° C to remove 1 crystal water.
1. Light magnesium oxide method
The light magnesium oxide method is the reaction of magnesium oxide and hydrogen peroxide:
Magnesium peroxide, chemical formula MgO2, white powder, odorless, tasteless, deliquescent. Do not dissolve in water, but will slowly decompose in water, soluble in dilute acid. Mainly used in medicine and other industries. It can be prepared by reacting a soluble magnesium salt solution with hydrogen peroxide.
Magnesium oxide is commonly known as bitter soil, also known as magnesium oxide. Magnesium oxide is a basic oxide and has the property of a basic oxide. It is a gelling material. White powder (light yellow is magnesium nitride), odorless, tasteless, non-toxic, is a typical alkaline earth metal oxide, chemical formula MgO. A white powder having a melting point of 2852 ° C, a boiling point of 3600 ° C and a relative density of 3.58 (25 ° C).
Magnesium oxide is divided into light magnesium oxide and heavy magnesium oxide. Lightweight and loose, white amorphous powder. Odorless, tasteless and non-toxic. The density is 3.58 g/cm3. Hard to dissolve in pure water and organic solvents, the solubility in water increases due to the presence of carbon dioxide. Soluble in acid, ammonium salt solution. It is converted into crystals by high temperature burning. In the case of carbon dioxide in the air, it forms a double salt of magnesium carbonate.
Magnesium gluconate (chemical formula: MgC12H22O14) is a magnesium salt of gluconic acid. White or grayish white odorless fine powder. Dissolved in water. It is obtained by dissolving magnesium oxide or magnesium carbonate in gluconic acid. Used as a nutritional supplement, buffer, curing agent, etc.
Oral administration of this product can increase the blood magnesium concentration and maintain the blood magnesium concentration after intravenous magnesium sulfate, for the treatment of pregnancy-induced hypertension syndrome.