ALTHOUGH urea is an inexpensive laboratory chemical, its solvent properties do not appear to have been fully appreciated by chemists. Nevertheless, it may well prove to be one of the most ...

Urine contains water, urea and salts. Urea is produced in the liver when excess amino acids are broken down. Urea is the main waste product removed in the urine, as it is not reabsorbed in the kidney.

Toray Industries Inc has begun advance sales to Japanese water treatment engineering companies of its TBW-XHR series of reverse osmosis (RO) membrane elements which double urea removal efficiency when ...

Here water and salts needed by the body are reabsorbed into the blood. The molecules which are not selectively reabsorbed (the urea, excess water and ions) continue along the nephron tubule to the ...