Urea resins - Import export

Urea CHEMICAL INDUSTRY Urea is a raw material forthe manufacture of twomain classes of materials:urea-formaldehyde resins and urea-melamine-formaldehyde used in marineplywood. AGRICULTURE More than 9O% of world industrial production of urea is destined for useas a nitrogen-release fertilizer. Urea has the highest nitrogen con-tent of all solid nitrogenous fertilizersin common use. Therefore, it has the lowest transpor-tation costs per unit of nitrogen nutri-ent. Nitrogen 46% min Biuret 1.0% max Particle size 2.00-4.75mm 90%min Moisture 0.5% max Appearance green, yellow, free flowing,free from harmful substances

Urea, also known as carbamide and symbolized in food additives as E927b, is an organic compound consisting of two amino groups linked by a carbonyl group. It occurs naturally in the body as a result of protein metabolism and is excreted in urine and sweat. It can also be produced synthetically by combining ammonia with carbon dioxide. Urea is hygroscopic and appears as white, odorless granules that do not dissolve in fats. Urea has a shelf life of 12 months and is available in 25 kg bags and Big Bags. Urea is used in various fields, for example, as a main ingredient in fertilizers, sprays and cosmetics due to its moisturizing, exfoliating and antiseptic properties. Urea is also used in exhaust gas cleaning, catalytic converters, urea-formaldehyde resins and animal feed. As a food additive, it is found in chewing gum and baked goods as a binder.

Urea is an organic compound with chemical formula CO(NH2)2 Urea serves an important role in the metabolism of nitrogen-containing compounds by animals and is the main nitrogen-containing substance in the urine of mammals Applications: Agriculture Urea is used as a nitrogen-release fertilizer it has the highest nitrogen content (46% N) of all solid nitrogenous fertilizers in common use Urea is a raw material for the manufacture of urea-formaldehyde resins, used mainly in wood-based panels such as particleboard Explosives Urea can be used to make urea nitrate, a high explosive that is used industrially and as part of some improvised explosive devices Automobile systems Urea is used to reduce the NOx pollutants in exhaust gases from combustion from diesel, dual fuel, and lean-burn natural gas engines properties: Molar mass 60.06 g/mol Density,1.32 g/cm3 Melting point 133-135 °C Solubility in water 545 g/L @25°C / pH 9,2 - 9,5 CAS number,57-13-6 WE number,200-315-5

It consists of multiple veneer layers, in which the fibers are arranged perpendicularly. It is glued with urea-formaldehyde resin, meeting the E0.5 standard according to PN-EN 636 for formaldehyde emissions. It makes an excellent construction material. Dry-faced raw plywood is designed for use in dry conditions.

The outer layer, 1.5 mm thick, is made of birch or pine veneer. Joinery board is available in two types of bonding: dry-resistant with a urea-formaldehyde resin-based bond for use in dry conditions, and water-resistant with a phenol-formaldehyde resin-based bond for use in wet conditions. The blockboard is lightweight and easy to work with, resistant to deformation.

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Offered plywood is manufactured from the highest quality birch wood veneers. The layers are glued together so that adjacent plies have their grain at right angles to each other for greater strength. Number of plies depends on plywood thickness, and is running perpendicular. Birch veneer is glued with urea – formaldehyde adhesive resin KF – FE, formaldehyde emission meets requirements of the E1 class.

Produced from resin (urea), granulated and classified in different sizes. This abrasive cleans surfaces without causing roughness or dimensional alteration of the parts. Hardness: 3.5 mohs Shape: angular Density: 1.45 - 1.52 g / cm3 Quality: MIL-P-85891 Welcome to BLASQEM, your Specialist in Shots, Abrasives and Equipment: - Abrasive Products and Accessories - Abrasive steel shots - Abrasives manufacturer - Abrasives solutions - Blasting material - Metallic shots and organic media or glass sandblasting and aluminium oxide or carbon grit abrasive shots for shot blasting - Steel Abrasives and aluminium shot for shot blasting operations - Blasqem is the industry's leading supplier of industrial abrasive

For GPC / SEC analysis in DMSO, examples: - amylose, amylopectin, starch - urea-formaldehyd resins (UF-resins) - melamin-urea-formaldehyd resins (MUF-resins) - lignins, humic substances, humic acids, coniferous wood bark essences - polysaccharide, polysaccharid derivatives - poly(N-isopropylacrylamid) PNIPA - poly-vinylpyridin - calibration: pullulan, dextran, polyvinylpyridin et al. Advantages - optimized for DMSO-GPC applications - interactionfree pure GPC/SEC - easy, reliable and robust GPC/SEC-calibration by dextrans, pullulans et al. - low column bleeding for low detectornoise for improved lightscattering or viscosity detection - 12μ particle technology for low backpressure - large porevolume and optimized mass transfer for polymers giving optimized resolution - low costs caused by long livetime of column – result of combination of optimized proprietary particle and packingtechnology.