1.Urea 2.Nitrogen: 46.6% 3.Biuret:0.9%, 4.Moisture:0.4%, 5 ... -2.8mm) 98%. Detailed Product Description 1.Urea 2.Nitrogen: 46.6% 3.Biuret:0.9%, 4.Moisture:0.4%, 5 ... ( 0.85-2.8mm) 98%. Detailed Product DescriptionUrea 46% prilled,industry ,Tech grade Nitrogen:46.6% biuret:0.9%, moisture: 0.4 ... :132-135CRelative density:1.335g/ml at 25C(lit) ItemSpecificationNitrogen≥46.6%Biuret≤0.9%Moisture≤0.5%Size0.85mm-2 ...