What are the applicable scopes of cadmium sulfide CDS powder?

Cadmium Sulfide Preparation

Cadmium ore is leached into cadmium sulfate with sulfuric acid, adjusted to pH=3.5 and precipitated with sodium sulfide, and the pH should not be too low.

Cadmium sulfide production method

1. Pass H2S gas into a hot solution of cadmium perchlorate acidified with a little perchloric acid or an aqueous solution of cadmium sulfate acidified with sulfuric acid to obtain cubic crystals of CdS precipitation. 2. After treating the cadmium chloride with hydrochloric acid to acid Chemicalbook, add thioacetamide and heat the solution to cause precipitation. The CdS obtained by this method is doped with halide ions, and these impurities cannot be removed in the process of washing the product. . The obtained CdS is a hexagonal crystal containing halogen ions.

Overview of cadmium sulfide CDS powder

Cadmium sulfide is an inorganic substance with a chemical formula of CDS. There are two kinds of crystals, α type is lemon yellow powder, β type is orange-red powder. Slightly soluble in water, soluble in acid, slightly soluble in ammonia. Cadmium sulfide is a yellow solid. It has two different crystal structures in nature, namely the rare minerals clinopyroxene and leucite, but in zinc ores with similar structures, sphalerite and wurtzite are usually used as impurity substituents, while zinc sphalerite And wurtzite is the main economic source of cadmium. As a compound that is easy to separate and purify, it is the main source of cadmium in all commercial applications. Its bright yellow color made it the pigment of the 18th century yellow paint "Cadmium Yellow".

Like zinc sulfide, cadmium sulfide has two crystal forms. More stable hexagonal wurtzite structure (found in greenstone mine) and cubic zinc mixed structure (found in Hollyite mine). In both forms, cadmium and sulfur atoms have four coordinates. There is also a high-pressure form with a NaCl rock salt structure.

Cadmium sulfide is a direct band gap semiconductor (energy gap 2.42 eV). Its band gap is close to the wavelength of visible light, giving it a colorful appearance.

Both polymorphs are piezoelectric, and the hexagon is also pyroelectric.

Cadmium sulfide crystals can be used as gain media for solid-state lasers.

For certain types of solar cells, cadmium sulfide can be used in combination with other layers in the form of thin films. Cadmium sulfide is also one of the first semiconductor materials used in thin film transistors (TFT).

The cadmium sulfide film can be a piezoelectric film and has been used as a transducer that can operate at frequencies in the GHz range.

Application of cadmium sulfide CDS powder

Cadmium sulfide CDS powder is called cadmium yellow and is used for the coloring of enamel, glass, ceramics, plastics and paint.

1. Cadmium yellow is widely used for the coloring of enamel, glass, ceramics, plastics and paint.

2. Used in paint and plastic industry, also used as electronic fluorescent material.

3. Cadmium yellow is suitable for coloring almost all resins, and is translucent in plastics.

4. As an excellent photographic developer, CDS nanoparticles can be used to detect cancer and other diseases and treat cancer cells.

5. CDS nanoparticles can be used to study the antibacterial and antifungal biological activities of various food-borne bacteria and fungi.

Nickel yellow is suitable for the coloring of almost all resins and is translucent in plastics. Polyethylene contains light-colored cadmium yellow containing zinc sulfide, and the molding processing time should be appropriately extended. Cadmium sulfide is mainly used as a pigment because it has good thermal stability, light resistance, weather resistance, chemical resistance and high opacity. CDS Cadmium selenide is used in the manufacture of photoresistors, solar cells, photocatalysts, etc. The light-colored cadmium yellow containing zinc sulfide is used for polyethylene. Due to the presence of zinc sulfide, the molding processing time should be shortened as much as possible. It will promote the decomposition of polyethylene plastic and make it green. Cadmium yellow is not as stable as cadmium red indoors and is mainly used for indoor plastic products. Cadmium yellow should not be mixed with pigments containing copper or copper salts to avoid the formation of black copper sulfide or green copper sulfate. Cadmium yellow and blue pigments can be mixed together to get green.

Price of cadmium sulfide CDS powder

The price of cadmium sulfide CDS powder will vary randomly according to factors such as production cost, transportation cost, international situation, exchange rate, supply and demand of cadmium sulfide CDS powder market. Tanki New Materials Co., Ltd. aims to help various industries and chemical wholesalers find high-quality, low-cost nanomaterials and chemicals by providing a full set of customized services. If you are looking for cadmium sulfide CDS powder, please feel free to send an inquiry to get the latest price of cadmium sulfide CDS powder.

Cadmium Sulfide CDS Powder Supplier

As a global supplier of cadmium sulfide CdS powder, Tanki New Materials Co., Ltd. has extensive experience in the performance, application and cost-effective manufacturing of advanced and engineered materials. The company has successfully developed a series of powder materials (including oxides, carbides, nitrides, single metals, etc.), high-purity targets and functional materials. Ceramics and structural equipment, and provide OEM services.