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 A. Vitamin A is a fat soluble vitamin that plays an essential role in stimulating your immune system and fighting infections.A vitamin A deficiency can increase your risk of respiratory infections.
Hereâs what she had to say: 1  Vitamin C is one of the biggest immune system boosters of all. 2  Vitamin B6 is vital to supporting biochemical reactions in the immune system. 3  Vitamin E is a powerful antioxidant that helps the body fight off infection.