Chemicals reagents are commonly referred to as reagent. It is a large class of pure chemical substances with various standard purities and can be used for education, scientific research, analysis and testing as well as the functional materials and raw materials required by some kinds of novel industrial materials. There is a large variety of chemical reagents and the number has reached hundreds of thousands in the world. There are also tens of thousands of reagents that have been used in daily life in china. There is still no uniform international rules in the classification methods for chemicals. It is customary divided by subject and actual application. Take the representative catalog issued by the Germany E • Merck Company as example, there are twelve categories and seventy categories while in most countries, it is divided with the scope of application. We divide the reagents into four categories. 1. General reagents: generally refers to inorganic reagents and organic reagents that can meet standard purity. It is often applied to scientific research, analysis and testing, and synthetic reaction and used as new materials. 2. Analysis Reagents: regent dedicated to analysis and test and can be divided into two subcategories: (1) Reagents for chemical analysis: testing items for the chemical reaction analysis. 1) Baseline Reagent: pure compound directly used for the standard solution in the formulation and volumetric analysis. 2) Indicator: it can be used to indicate the end of the titration reagent and can be classified into pH indicator, redox indicator adsorption indicator, metal indicator, a fluorescent indicator, and so on. (2) Regents for instrument analysis: high-purity compounds dedicated to instrumental analysis. 1) Spectroscopically pure reagents: spectroscopically pure compound, often expressed in the SP for spectral analysis reagents. 2) Chromatography pure reagents: reagents dedicated to analysis of gas chromatography and liquid chrom
Benzhydrol:Melting point,Uses,Hazards
Benzhydrol is a white solid and is an important organic intermediate.
Mar 22,2024 Chemical ReagentsQ:What is Methoxypolyethylene glycol amine used for?
A:Methoxypolyethylene glycol amine is a soluble polymer carrier that can be used in the preparation of polyethylene glycol-containing couplers, in order to enhance their solubility.
Mar 14,2024 Chemical ReagentsQ:What is 1,2-Dioleoyl-sn-glycero-3-phosphoethanolamine?
A:1,2-Dioleoyl-sn-glycero-3-phosphoethanolamine (DOPE) is a metabolite of Escherichia coli with a structure containing 18:1 fatty acids at the sn-1 and sn-2 positions.
Mar 14,2024 Chemical ReagentsA Research on the toxicity of tert-Butyl acetate
Tert-butyl acetate is a readily available low-cost solvent produced industrially from acetic acid and isobutylene. Its good safety profile makes it suitable for widespread use in catalytic direct amid
Jan 22,2024 Chemical ReagentsThe uses of Benzethonium chloride
Benzethonium Chloride (BZT-Cl), also known as hyamine, is a water-soluble cationic surfactant.
Jan 8,2024 Chemical ReagentsSodium pyruvate:a crucial role in cellular metabolism
Sodium pyruvate: crucial in cellular metabolism, used in culture media, its synthesis involves careful steps, and safety protocols must be followed.
Dec 29,2023 Chemical ReagentsWhy is Pentane nonpolar?
Pentane is a natural product found in Calendula officinalis and Allium ampeloprasum.It appears as a clear colorless liquid with a petroleum-like odor. Less dense than water and insoluble in water. Hen
Dec 27,2023 Chemical ReagentsThe uses of Tetrakis (hydroxymethyl) Phosphonium Chloride
THPC is formed by treating phosphine with formaldehyde in the presence of hydrogen chloride and is used as an ingredient in flame-retardant chemicals.
Dec 26,2023 Chemical ReagentsLewis Structure, Hybridization and Polarity of Carbon Tetrafluoride
Carbon tetrafluoride(CF4) is non-flammable gas and is used as a refrigerant in various industries. It is very stable due to the strength of its carbon-fluorine bond. The stable properties are determin
Dec 22,2023 Chemical ReagentsIodotrimethylsilane:an important silanization reagent
Iodotrimethylsilane is an important silanization reagent with a wide range of applications in the chemical and pharmaceutical fields.
Dec 22,2023 Chemical Reagents