From early AD to mid-19 century, people mainly use the natural organic substance (such as animal and plant extracts) for qualitative analysis or quantitative analysis. From the second half of the 19th century to the 1920s, it had begun to appear of artificially synthetic organic reagent such as using potassium acetate xanthan for test of nickel, copper, and molybdenum; using morin for test of aluminum; using diazo coupling reaction for the detection of Nitrite; using α-β-nitroso naphthol for detection of cobalt; using dimethyglyoxime for nickel test. After the proposal of the special-effects group in the 1930s and the proposal of theoretical analysis of functional groups theory in 1950s, people had carried out large-scale screen of organic reagents in search of special-effects analysis groups for different ions and had successfully synthesized a lot of agents of practical value (such as copper reagents, new copper agent, cadmium reagents, beryllium reagent, thorium reagents, etc.). Before the 1950s, the complex compound, in analytic chemistry, is mainly used in the aspects of the precipitation reaction of a binary chelate for the qualitative detection, precipitate isolation and gravimetric separation and other aspects. In the early 1950s and 1960, it is mainly in the form of complexometric titration. From the beginning of the late 1960s, the main focus has been moved to the photometric analysis. Meanwhile, it has been also developed of chelate organic solvent extraction.
Benzil: Chemical property, Synthesis, and uses
Benzil is one of the eloquent organic compounds consisting of two adjacent carbonyl groups flanked by two phenyl rings.
Sep 11,2024 Organic reagentsβ-lactamase detectionand typing tests-Nitrocefin test
Nitrocefin, a β-lactam molecule, is a chromogenic cephalosporin substrate used to detect the presence of beta-lactamase enzymes, an essential mediator of bacterial antibiotic resistance.
Sep 9,2024 Organic reagentsBenzimidazole: Chemical property, Primary Use, and biological activity
Benzimidazole is a class of heterocyclic aromatic organic compounds which share a fundamental structural characteristic of six-membered benzene fused to the 4 and 5-position of the five-membered imida
Sep 3,2024 Organic reagentsThe synthesis method of 1-BOC-Piperazine
N-Boc piperazine (1-BOC-Piperazine) belongs to the monosubstituted piperazine compounds.
Sep 2,2024 Organic reagentsThe toxicity of Estragole (4-Allylanisole)
Estragole is also structurally similar to the known carcinogen safrole [4-(2-propenyl)-1,2-methylenedioxybenzene] and has widespread use in food and as a fragrance.
Aug 29,2024 Organic reagentsWhat is 2-Methyl-2,4-pentanediol used for?
2-Methyl-2,4-pentanediol (Hexylene glycol) is an aliphatic alcohol known as: 2-methyl-2,4-pentanediol; diolane; and 1,1,3-trimethyltrimethylene-diol.
Aug 27,2024 Organic reagentsTetraacetylethylenediamine and laundry detergents
TAED is a vital component of laundry detergents as an alternative to “active oxygen” bleaching agents, from sodium perborate to urea peroxide.
Aug 19,2024 Organic reagentsTriphosgene: History and Advantage
Triphosgene, or bis(trichloromethyl) carbonate or BTC, is a convenient substitute for the extremely toxic phosgene gas.
Aug 9,2024 Organic reagentsThe different types of Ethanol
Ethanol, also known as ethyl alcohol or alcohol, is a volatile, flammable, colourless liquid with the molecular formula C2H5OH.
Aug 9,2024 Organic reagents1-Nonanol: Chemical property and uses
1-Nonanol, also known as N-nonyl alcohol or 1-hydroxynonane, belongs to the class of organic compounds known as fatty alcohols.
Aug 6,2024 Organic reagents