Biuret formation in urea production is restricted to minimal levels (< 1%) because it acts as a/an___________________?
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Answer: B. Toxic and harmful to some crops
Explanation
Biuret is restricted to very low levels in commercial urea because higher concentrations are toxic and harmful to many crops. Accumulation of biuret in plant tissues disrupts normal metabolic processes and stunts overall growth. Agricultural standards enforce strict maximum limits to protect sensitive seedlings and foliage from damage. Biuret is an unwanted chemical impurity formed when urea molecules condense at elevated manufacturing temperatures. Commercial fertilizer specifications typically cap allowable biuret content at one percent by weight. Urea production plants employ careful vacuum evaporation and crystallization to minimize byproduct formation.
Foliar spray applications of urea require ultra-low biuret concentrations to prevent leaf burn in orchards. Farmers rely on certified fertilizer grades to ensure crop health and maximize agricultural productivity. Quality control laboratories test every batch of urea fertilizer before it reaches commercial agricultural markets. Biuret does not act as a primary industrial corrosive agent against standard carbon steel process equipment. Biuret does not help decompose urea; rather, it represents a stable thermal degradation impurity. Biuret is not classified as an explosive substance, unlike compounds such as ammonium nitrate.
- Subject
- Engineering
- Category
- Chemical Engineering
- Topic
- —
- Difficulty
- medium
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