1. Introduction to Polyaluminum chloride Polyaluminum chloride (PAC), also known as basic aluminum chloride, aluminum hydroxychloride, or polymeric aluminum chloride, represents one of the most significant inorganic polymer coagulants in modern water and wastewater treatment. Its general empirical formula is often written as [Al₂(OH)nCl₆–n]m, where m indicates the degree of polymerization and n represents the […]

1. Introduction to Ferric Sulphate Ferric sulphate, also known as iron(III) sulfate or iron sesquisulfate, is an inorganic compound with the chemical formula Fe₂(SO₄)₃. It is one of the most important salts of trivalent iron and plays a critical role in a variety of industrial sectors, including water and wastewater treatment, pigment manufacturing, electronics, and

Introduction to Tolytriazole Sodium Salt Tolytriazole sodium salt, commonly known as sodium tolytriazole (CAS: 64665-57-2), is an organic chemical compound that belongs to the class of triazoles. Triazoles are five-membered heterocyclic compounds containing three nitrogen atoms, and tolytriazole is a derivative where the triazole ring is substituted by a tolyl group (methyl group on a

Abstract. Nitroguanidine (commonly abbreviated NGu or NQ; CAS 556-88-7) is a relatively low-sensitivity energetic solid widely used in propellants, pyrotechnics and insensitive munition formulations. From a chemical-engineering viewpoint it is interesting because its manufacture, handling and formulation require balancing energetic performance, particle engineering, quality control and rigorous safety/regulatory compliance. The purpose of this article is

Introduction to N-Oleoyl Sarcosine N-Oleoyl sarcosine (CAS: 110-25-8) is an amphiphilic compound that belongs to the class of fatty acid derivatives of sarcosine, a naturally occurring amino acid. With its unique chemical structure and properties, N-Oleoyl sarcosine has found applications in diverse industries, including cosmetics, pharmaceuticals, and industrial formulations. The synthesis and production processes of

1. Introduction to Molecular Sieves 1.1 What is a molecular sieve? A molecular sieve is a porous solid material whose pores (or “cages” / “channels”) have well-defined and extremely uniform diameters on the molecular scale (typically 3–10 Å). Because of this, the material can selectively adsorb or exclude molecules based on their kinetic diameter (size), shape,

Introduction to Photoinitiator 127 Photoinitiator 127, also known by trade names such as Omnirad 127 or Irgacure 127, is a difunctional α-hydroxyketone (AHK) photoinitiator widely used in ultraviolet (UV)-curable systems. This compound plays a vital role in initiating free-radical polymerization upon exposure to UV light, allowing for rapid curing of coatings, inks, adhesives, and related

1. Introduction of SIBX The mining industry faces a wide range of challenges, particularly in the extraction and processing of minerals. One of the critical stages in mineral processing is the flotation process, where the separation of valuable minerals from gangue (waste) materials occurs. In this process, the use of chemical reagents plays a pivotal

1. Introduction to Acrylic Acid Acrylic acid (IUPAC name: propenoic acid) is an unsaturated monocarboxylic acid with the molecular formula C₃H₄O₂. It is a clear, colorless liquid with a pungent odor and is primarily used as a precursor for acrylate esters and polyacrylic acid polymers. Its structural features—a vinyl group conjugated with a carboxylic acid—make

1. Introduction to Dicyandiamide Dicyandiamide, commonly abbreviated as DCD, is a white crystalline compound with the molecular formula C₂H₄N₄ and a molecular weight of 84.08 g/mol. Also known as cyanoguanidine, this compound is a vital intermediate in multiple industrial processes, particularly in the chemical, agricultural, electronics, and pharmaceutical sectors. It is structurally characterized by a