It is used as a monopropellant because hydrazine will decompose (ignite) when placed in contact with platinum group metal catatlysts.Hydrazine is popular with satellite builders because the monopropellant properties save space, complexity, and weight.t is used as a monopropellant because hydrazine will decompose (ignite) when placed in contact with platinum group metal catatlysts.
Vitamin C. Vitamin C is a water soluble vitamin that stimulates your immune system and protects your cells from harmful substances. Increasing your dietary intake of vitamin C can reduce your risk of respiratory infections.
Use of vitamin D has been found to help prevent respiratory tract infections in children. However, some conflicting results have been found in humans. Although evidence supports the effects of vitamin D on prevention of respiratory tract infections in children, further study in both adults and children is needed.