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
The synthesis method of 2-Butene-1,4-diol
It is of great value to develop an effective method to synthesize 2-Butene-1,4-diol which is an important organic compound.
Oct 17,2023 Chemical ReagentsDimethylglyoxime:Uses,Reactions,Preparation
Dimethylglyoxime is a white powder, soluble in methanol or sodium hydroxide solution. It is one of the first selective organic reagents applied in analytical chemistry.
May 31,2023 Chemical Reagents2-Ketoglutaric acid:Physiological effect,Applications,Production
2-Ketoglutaric acid is a ketone derivative of glutaric acid,it is one of the two ketone derivatives of glutaric acid, with the other being β-ketoglutaric acid.
May 22,2023 Chemical ReagentsPhenylboronic acid:Synthesis,reactions
Phenylboronic acid is a boronic acid containing a phenyl substituent and two hydroxyl groups attached to boron. Boronic acids are mild Lewis acids which are generally stable and easy to handle, making
May 9,2023 Chemical ReagentsTriethylsilane: General description,Application and Production
Triethylsilane is colorless and transparent liquid, soluble in non-polar solvents and flammable.
Apr 28,2023 Chemical ReagentsMethanol:General description,Application,and Production
Methanol, also known as methyl alcohol, wood alcohol, or carbinol, is a clear, colorless liquid with a slightly sweet odor.
Apr 28,2023 Chemical Reagents4-acetoxystyrene:Uses and Purification
4-acetoxystyrene, which is typically obtained through the elimination of water from 4-acetoxyphenylmethyl carbinol, represents an important intermediate from which a variety of compounds are produced.
Apr 27,2023 Chemical ReagentsHydroxylamine Sulfate: Application, Toxicity, Preparation
Hydroxylamine sulfate is an inorganic compound with the chemical formula (NH2OH)2·H2SO4. It is a white crystalline solid that is soluble in water and has a slightly acidic taste.
Apr 27,2023 Chemical ReagentsSodium Acetate: Preparation, Reactions and Applications
Sodium acetate, CH3COONa, also abbreviated NaOAc, is the sodium salt of acetic acid. This colorless deliquescent salt has a wide range of uses.
Apr 12,2023 Chemical ReagentsN-Bromosuccinimide:Chemical synthesis,Reactions
N-Bromosuccinimide (NBS) is a convenient source of bromine for both radical substitution and electrophilic addition reactions.
Mar 20,2023 Chemical Reagents