The newton is the International System of Units derived unit of force. It is named after Isaac Newton in recognition of his work on classical mechanics, specifically Newton's second law of motion. Editors Contribution (0.00 / 0 votes) Rate this definition:
It's 2-methylpropan-1-ol oxidized with potassium dichromate(VI) in aqueous sulphuric acid to yield 2-methylpropanoic acid (also known as isobutyric acid).
The oxidation of most organic compounds by dichromate is 95 to 100 per-. cent of the theoretical value. However, ammonia, urea, benzene, toluene, and pyridine are among the compounds that are not oxidized by dichromate. Since urine contains large amounts of urea, ammonia and amines, its COD.