Glycoluril
【Chemical Name】 Glycoluril
【Synonym】 5-d]imidazole-2,5(1h,3h)-dione,tetrahydro-imidazo[;5-d]imidazole-2,5(1H,3H)-dione,tetrahydro-ImidazoChemicalbook[4;Acetylenecarbamide;Acetylenediureine;Diureaglyoxalate;Glyoxalbiuret;Glyoxaldiureine;Glyoxaldiurene
【CAS No】496-46-8
【Molecular Formula】 C4H6N4O2
【Molecular Weight】142.12
【Properties】Melting point>300 ° C (lit.) Boiling point 259.66 ° C (rough estimate) Density 1.4926 (rough estimate) Vapor pressure 0Pa at 25 ℃ Refractive index 1.8500 (estimate)
【Packing】25Kg/bag
【Usage】 Used as a water treatment agent
【Introduction】
Glycoluril, also known as ethynylurea or tetrahydroimidazo [4,5-d] imidazole-2,5- (1H, 3H) - dione, is a compound with a bicyclic biurea structure. It is both a proton donor and a proton acceptor, capable of generating various forces such as hydrogen bonding with solutes
Since its first synthesis in 1877, urea has been widely used in various fields due to its unique chemical properties, including coatings, explosives, water treatment, electronic devices, supramolecular recognition and pharmaceuticals, pesticide slow-release, molecular catalysis, etc.
The molecule of urea contains multiple polar groups, which are easy to modify. Its derivatives are widely used in fields such as molecular recognition and self-assembly
In the field of coatings, urea and tetrahydroxymethyl urea as additives can improve the degreasing hydrophilicity and adhesion of coatings, while having little effect on the initial hydrophilic angle, neutral salt spray and other properties of coatings
In addition, urea can also be used as a color photosensitive material, gas chromatography stationary phase, and water treatment agent.
In terms of chemical synthesis, urea can be synthesized by condensation of urea and glyoxal under acid catalyzed conditions. Microwave heating can promote the reaction, improve product yield, and shorten reaction time
The chemical properties of urea include a melting point above 300 ° C, a boiling point of approximately 259.66 ° C (rough estimate), a density of approximately 1.4926 (rough estimate), a vapor pressure of 0Pa at 25 ° C, a refractive index of approximately 1.8500 (estimated), and a water solubility of 1.8g/L at 20 ° C