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Urea is used mainly in the agricultural sector as an inexpensive source of nitrogen. It is one of the most important industrial raw materials, and is also used for producing urea-formaldehyde resins and plasticizers, adhesives, and leather tanning. Urea is a widely used fertilizer, which is produced by direct synthesis of urea and ammonium carbonate. […]
Sulphur is an essential plant nutrient. It contributes to increase crop yield by providing direct nutritive value, as well as indirect nutritive value by enhancing soil productivity and improving use efficiency of other key nutrients (nitrogen and phosphorus). Sulphur is the main source for sulphuric acid production, the world’s most used chemical. In the fertilizer […]