Estimation of Hydrazine and Three of Its Methyl Derivatives

This report describes the results obtained by application of three methods (i.e., visual iodate, potentiometric bromate, and colorimetric molybdenum blue) to the determination of hydrazine and its methyl derivatives. In addition, the validity of continuous sampling techniques for vapor concentrations in air was determined by estimating the stability of acidified aqueous solutions of the hydrazines toward prolonged aeration.