In early tests with the ligand 2-(2-Thiazolylazo)-p-cresol (TAC), we found that interference of the Fe(TAC) 1 complex may have competed with Fe(TAC) 2 for Fe. Also, i pmax was not reached in UV treated seawater after overnight equilibration ([TAC] = 40 Î¼ m, Î± Fe 3 + (TAC) 2 = 3.6 Ã 10 13).
BASE UNIT - kilogram (kg) - MASS. The standard for the kilogram is a cylinder of platinum-iridium alloy kept by the International Bureau of Weights and Measures in Paris. A duplicate at the National Bureau of Standards serves as the mass standard for the United States.
Weight is the force that mass has because of the gravity. So, if an object has a mass of one pound, then it has the same mass on the moon, but weighs less than earth. In metric system, unit of mass is kilogram. Other common metric mass units are grams, milligrams and tonnes.In imperial and u.s. customary system, common weight units are pound and ounce.o, if an object has a mass of one pound, then it has the same mass on the moon, but weighs less than earth. In metric system, unit of mass is kilogram. Other common metric mass units are grams, milligrams and tonnes. In imperial and u.s.