Technical Urea

UREA

technical urea chemical property:

Acetylurea and diacetylurea can be generated by reacting with acetyl chloride or acetic anhydride.

Under the action of sodium ethoxide, it reacts with diethyl malonate to form malonylurea (also known as barbituric acid due to its acidity).

Under the action of alkaline catalysts such as ammonia water, it can react with formaldehyde and condense into urea formaldehyde resin.

Reacts with hydrazine hydrate to form semicarbazide.

technical urea Purpose:

It has a brightening effect on chemical polishing of steel and stainless steel, is used as a corrosion inhibitor in metal pickling, and is also used in the preparation of palladium activation solution.

In industry, it is also used as a raw material for the production of urea formaldehyde resin, polyurethane, and melamine formaldehyde resin. When urea is heated to 200 ℃, it generates solid trichloroacetic acid (i.e. cyanuric acid). The derivatives of cyanuric acid, such as trichloroisocyanuric acid, sodium dichloroisocyanurate, tris (2-hydroxyethyl) isocyanurate, tris (allyl) isocyanurate, tris (3,5-di-tert-butyl-4-hydroxybenzyl) isocyanate, tris (diglycidyl) isocyanurate, cyanuric acid melamine complex, etc., have many important applications. The first two are new high-end disinfectants and bleaching agents, with a total global production capacity of over 80000 tons of trichloroisocyanuric acid.

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