Technology

A chromium catalyst refers to an elemental chromium or chromium compound which has a catalytic function. Chromium is a silvery white shiny metal that is malleable. Chromium belongs to the VIB family in the periodic table. There is no free state of chromium in nature, and it mainly present in the form of FeCr2O4. Chromium is chemically inert and highly resistant to corrosion. In the air, even in hot condition, chromium oxidation is slow. Chromium is commonly present in the form of Cr6+, Cr5+, Cr3+ and Cr2+, so the types of chromium catalysts are abundant. Chromium catalysts can generally be classified into organic chromium catalysts and inorganic chromium catalysts. The chromium catalysts can also be classified into supported chromium catalysts and unsupported chromium catalysts depending on whether it has supported substance. Chromium CatalystsFigure 1. Inorganic chromium catalyst Applications: Due to the wide variety, low cost and excellent performance of chromium catalysts, th

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3D printing material is the general name of the materials applied in 3D printing technology. The materials used for 3D printing often vary depending on the needs of the item being printed. Commonly used 3D printing materials include glass materials, fiber materials, durable nylon materials, gypsum materials, aluminum materials, titanium alloys, stainless steel, silver plating, gold plating, rubber materials, etc. Applications: The application range of 3D printing materials is very wide, involving jewelry and apparel, industrial design, biomedicine, aerospace, naval vessels, automobile industry and other fields. Jewelry and apparel: 3D printing materials have been used in jewelry and apparel for a long time. Durable nylon materials or other clothing materials are used as 3D printing materials, which can be used to print clothes, hats and even high heels for different needs. Medicine: The application of 3D printing materials in biomedicine is later than other fields, but it has b

Total hardness is a measurement of the mineral content in a water sample that is irreversible by boiling. Total hardness is determined by the multivalent cations' concentrations present in water. These cations have a positive charge that is higher than 1+. Typically, cations have a charge of 2+. The most common cations present in hard water are Mg2+ and Ca2+. Hardness is caused by calcium and magnesium ions in the water. The presence of bicarbonate ions affects the dose of chemicals required to precipitate the calcium and magnesium, and therefore hardness is classified in two ways: As calcium or magnesium hardness As carbonate or noncarbonate hardness. Carbonate hardness is caused by calcium or magnesium ions associated with bicarbonate ions, and noncarbonate hardness is caused by calcium or magnesium ions associated with chloride, sulfate, or other ions. Total Hardness Hardness also relates to the scale that precipitates in kettles and utensils when water is boiled.

Functional electronic wet chemicals are indispensable basic chemical materials for developing, cleaning and etching process of semiconductor manufacturing. They are mainly applied in integrated circuit manufacturing, flat panel display manufacturing and photovoltaic cell manufacturing. Integrated circuit manufacturing The application of functional electronic wet chemicals in integrated circuit manufacturing mainly refers to wafer processing, including the pre-treatment of silicon wafers before wafer processing and backend packaging and testing. The wafer processing is very complex, which can be divided into lithography, etching, oxidation, thin film, chemical mechanical polishing grinding (CMP), diffusion (DIFF) and other parts. Lithography, etching, oxidation and surface pretreatment processes all require functional electronic wet chemicals. Integrated circuit manufacturing Flat panel display manufacturing Flat panel display manufacturing Functional electronic wet chemical

Known for its competence, responsibility, and innovative capability in chemical supply, Alfa Chemistry recently unveiled its new role as a CDMO service provider for pharmaceutical companies worldwide. Contract Development and Manufacturing Organization, abbreviated as CDMO, is a preferential way for a majority of pharmaceutical companies to outsource ongoing drug development and drug manufacturing projects. “With advanced facilities, we are capable of providing CMO, CRO, and CDMO services globally for the design, development, and production of various biologic drug products, including but not limited to recombinant proteins, ADCs, monoclonal antibodies, and bispecific antibodies,” said the Marketing Chief of Alfa Chemistry. “Our technical expertise in biomanufacturing allows us to respond swiftly and solve problems that puzzle our clients efficiently.” The list of CDMOs services provided by Alfa Chemistry covers nearly every aspect of drug development and manufacturing and is

Cyclophosphamide, also known as cytophosphane, appears as a white to almost white crystalline powder with a slightly bitter taste. The chemical name of it is p-[N,N-bis-(2-chloroethyl)]-1-oxo-3-nitrogen-2-phosphocyclohexane-p-oxide monohydrate. Cyclophosphamide is a synthetic alkylating agent chemically related to nitrogen mustard with antineoplastic and immunosuppressive activities, which was approved for medical use in the United States in 1959. The structure is shown in fig. 1. Structure of cyclophosphamide Fig. 1 Structure of cyclophosphamide Application in the treatment of cancer and autoimmune diseases Cancer Cyclophosphamide remains one of the most successful and widely utilized antineoplastic drugs. It is used in chemotherapy to treat lymphoma, multiple myeloma, ovarian cancer, leukemia, breast cancer, small cell lung cancer, neuroblastoma, and sarcoma. Cyclophosphamide is an inactive prodrug that requires enzymatic and chemical activation. The resultant nitrogen musta

Pathology Laboratory Facilities Morphological Analysis In clinical pathology, Alfa Chemistry has diagnostic pathology microscopy systems for: Examination of fecal parasites. Observation of cell agglutination in in vitro hemolysis tests. Morphological cell classification of peripheral blood smears. Morphological classification of cells in bone marrow smears. In vitro hemolysis test results, hematological analysis, and microscopic inspection of the degree of proliferation and toxic alterations in the bone marrow nuclei of different animals can all be referenced using morphological testing. Diagnostic Pathology Microscopy Systems Tissue Section Analysis Alfa Chemistry has an automatic staining machine, tissue dehydration machine, paraffin sectioning machine, frozen sectioning machine, embedding machine, automatic sealing machine and other equipment for: Extra large tissue sectioning. Mouse complete tissue sectioning. Canine complete tissue sectioning. Microtissue

In the quest to develop safe and effective medicines, pharmaceutical companies rely on the precise combination of active pharmaceutical ingredients (APIs) and excipients. These crucial components play a pivotal role in the formulation of pharmaceutical drugs, ensuring optimal drug delivery and patient outcomes. Recently, CD Formulation released a comprehensive guide titled "Active Pharmaceutical Ingredients and Excipients Handbook" highlighting its latest advancements in this field. The handbook serves as a valuable resource for pharmaceutical scientists, formulators, and researchers, providing in-depth information about cutting-edge pharmaceutical ingredients and excipients. The featured APIs highlighted in the handbook are: β-Alanine (CAS 107-95-9), Heparin Sodium (CAS 9041-08-1), Vitamin C (CAS 50-81-7), Calcitriol, Vitamin D3 (CAS 67-97-0), and Montmorillonite (CAS 1318-93-0). In addition to APIs, the handbook emphasizes the critical role of excipients in drug fo

Pharmaceutical excipients play a crucial role in the formulation and production of drugs, supporting their stability, efficacy, and palatability. Among the numerous excipients used in pharmaceutical preparations, preservatives, stabilizers, suspending agents, thickener excipients, and flavoring agents are commonly observed. Understanding their functions and characteristics is essential for pharmaceutical scientists and formulators. In this article, we will delve into each of these excipients to gain a comprehensive understanding of their roles in drug formulation. Preservatives Preservatives are vital components in pharmaceutical formulations as they safeguard against microbial growth and ensure product safety during its shelf life. One frequently employed preservative is benzoic acid, which exhibits excellent antimicrobial properties and is used in various oral and topical formulations. Benzoic acid prevents microbial contamination, particularly in liquid dosage forms such as syru

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