Prior to 1989, trichlorofluoromethane (CFC-11) and dichlorodifluoromethane (CFC-12) were the most used chemical compounds in aerosol-spray propellants. Their use was discontinued under the Montreal Protocol.
Solid rocket propellants have the highest impulse densities typically 17 lbm-sec/in^3 or greater. Bi-propellant liquid rocket propellants such as Liquid Oxygen/Kerosene also have high density impulse, typically 12 lbm-sec/in^3 while Liquid Oxygen/Liquid Hydrogen have low density impulse below 6 lbm-sec/in^3.
hurt it hurt it bad!
CFC are useful in industry. They are used as coolants.
A family of inert, nontoxic, and easily liquified chemicals used in refrigeration, air conditioning, packaging, insulation, or as solvents and aerosol propellants. Because CFCs are not destroyed in the lower atmosphere they drift into the upper atmosphere where their chlorine components destroy ozone.
The first propellants were used for engines. Propellants help the aircraft move forward. Moving forward at high speeds causes lift around wings.
Grains is the unit of mass of the projectile and the propellants.
They are banned now most places-they were used as propellants for aerosols
mining and propellants in weapons
As asked this question has no answer, as there are no propellants in nuclear reactors.
Donald Cotton was known for his invention of propellants for nuclear reactors. His invention is used all over the world currently.
Prior to 1989, trichlorofluoromethane (CFC-11) and dichlorodifluoromethane (CFC-12) were the most used chemical compounds in aerosol-spray propellants. Their use was discontinued under the Montreal Protocol.
Those can that make many scent can. how they make it. How they put propellants in the spray?
The primary performance advantage of liquid propellants is due to the oxidizer. Several practical liquid oxidizers (liquid oxygen, nitrogen tetroxide, and hydrogen peroxide) are available which have better specific impulse than the ammonium perchlorate used in most solid rockets, when paired with comparable fuels.
Propellent classification is used to list various propellants of how slow or fast they are able to move something.
No. -The propellants used have a boiling point much lower than the lowest temperature a household freezer can achieve.-
What kind of liquids are you talking about? ... and why do you mean volatile? Do you mean flammable? The question refers to the propellants used in aerosol spray cans. If aerosol cans were filled with compressed gas, they would have to be designed to withstand extremely high pressures, which would not be cost-effective. Instead, liquid propellants (usually butane, isobutane or propane) are used, which allow a much larger amount of propellant to be stored, at a reasonable pressure. These liquid propellants are "volatile" in the sense that a small amount of the liquid evaporates every time some of the gas is released, so that the vapor and liquid stay in equilibrium. As it happens, most of these liquid propellants are also flammable, but the term "volatile" refers to their tendency to evaporate.