why-is-hydrazine-hydrate-added-to-boiler-feed-water

Hydrazine hydrate is a colorless, transparent, oily liquid with a light ammonia smell. In industry, hydrazine hydrate aqueous solution or hydrazine salt with a content of 40% to 80% is generally used. Relative density 1.03 (21℃); melting point -40℃; boiling point 118.5℃. Surface tension (25℃) 74.OmN/m, refractive index 1.4284, heat of formation -242.7lkj/mol, flash point (open cup) 72.8℃. Hydrazine hydrate is strongly alkaline and hygroscopic. Liquid hydrazine hydrate exists in the form of dimer, miscible with water and ethanol, insoluble in ether and chloroform; it can corrode glass, rubber, leather, cork, etc., and decompose into Nz, NH3 and Hz at high temperature; hydrazine hydrate has extremely strong reducing properties, and reacts violently with halogens, HN03, KMn04, etc. It can absorb C02 in the air and produce smoke.

2024-12

2024-12-20