To be efficient, therefore, a propellant should have a large heat of combustion to yield high temperatures, and should produce combustion products containing simple, light molecules embodying such elements as hydrogen (the lightest), carbon, oxygen, fluorine, and the lighter metals (aluminum, beryllium, lithium).
Vitamin A - Retinyl Palmitate/ Retinol. Vitamin A is a fat soluble vitamin that is stored in our liver. It contributes to normal growth and development while keeping our eyes, skin and immune system healthy. Vitamin A plays a key role in maintaining health.
Dietary Sources. Vitamin A in the form of retinyl palmitate is found in: 1  Beef, calf, and chicken liver. 2  Eggs. 3  Fish liver oils. 4  Dairy products, including whole milk, whole milk yogurt, whole milk cottage cheese, butter, and other cheeses.verview. Vitamin A is a fat-soluble vitamin that has several important functions in the body. 1  It helps cells reproduce normally, a process called cellular differentiation. 2  It is essential for good vision. 3  The first sign of a vitamin A deficiency is often poor sight at night.