Preparation of Hydrazine Hydrate from Urea and Sodium Hypochlorite تحضير الهيدرازين المائي من اليوريا وهايبوكلوريت الصوديوم

Abstract

Many methods for production of Hydrazine Hydrate are stated in the literature. The best method was selected ( urea process ) depending on availability of raw materials in Al-Furat State Co. for Chemical Industries, local market, method of applicability and feasibility. The synthesis of hydrazine from urea and sodium hypochlorite was studied (Urea Process). Concentration of reactants ( 6 - 14% NaOCl , urea 34.1 g , NaOH 47.8 g , gelatin ratio 0 - 0.57 g) , reaction temperature ( 90 – 110) ᵒC were studied to determine their effects on the production of hydrazine in order to obtain higher concentration , the mixing rate was (120 rpm). Hydrazine detection and determination test has been done in the labs of Al-Furat State Co. using colorimetric method and oxidation with potassium iodate method. Additionally, samples were tested by iodemetric method in the lab of T.P.S. (Treatment Water Unit in Al-Mussayab Power Station). The results showed that highest concentration of hydrazine hydrate of (52%) was obtained at (14%) NaOCl, urea (34.1g), NaOH (47.8g), gelatin (0.47g) , and reaction temperature of (100 ᵒC) at (120 rpm).