What is a double base propellant?
In double-base propellants, fuel and oxidizer are mixed on a molecular level. These propellants generally contain a nitrocellulose type of gun powder dissolved in nitroglycerine with additional amounts of minor additives.
What are two types of propellant?
Most liquid chemical rockets use two separate propellants: a fuel and an oxidizer. Typical fuels include kerosene, alcohol, hydrazine and its derivatives, and liquid hydrogen. Many others have been tested and used. Oxidizers include nitric acid, nitrogen tetroxide, liquid oxygen, and liquid fluorine.
What is triple base propellant?
Triple-base propellant [r]: Smokeless powder, used in artillery, made from nitrocellulose, nitroglycerin or another explosive plasticizer, and nitroguanidine; it burns with equivalent energy, but at a lower temperature than other propellants, thus reducing barrel wear, and has much less muzzle flash [e]
How is cordite made?
The original cordite (Cordite Mark I), as manufactured at the royal gunpowder factory at Waltham Abbey, England, in 1890, was composed of 37 parts of guncotton, 57.5 parts of nitroglycerin, and 5 parts of mineral jelly together with 0.5 percent of acetone.
What are the types of propellants?
Types of propellants commonly used in pharmaceutical aerosols include chlorofluorocarbons, fluorocarbons (trichloromonofluoromethane, dichlorodifluoromethane), hydrocarbons (propane, butane, isobutane), hydrochlorofluorocarbons and hydrofluorocarbons, inert gases (nitrogen, NO2, CO2) and compressed gases (Alston et al. …
Is Nitroguanine explosive?
Nitroguanidine- abbreviated NGu or NQ- is a colorless, crystalline solid that melts at 257 °C and decomposes at 254 °C. NGu is an extremely insensitive but powerful high explosive.
Who invented cordite?
cordite, a propellant of the double-base type, so called because of its customary but not universal cordlike shape. It was invented by British chemists Sir James Dewar and Sir Frederick Augustus Abel in 1889 and later saw use as the standard explosive of the British Army.
What is cordite propellant?
Cordite is a family of smokeless propellants developed and produced in the United Kingdom since 1889 to replace gunpowder as a military propellant. Like gunpowder, cordite is classified as a low explosive because of its slow burning rates and consequently low brisance.
How are double-base propellants made?
Double-base propellants and modified double-base propellants are manufactured by a different set of processes. The key is the diffusion of the liquid nitroglycerine into the fibrous solid matrix or nitrocellulose, thus forming, by means of solvation, a fairly homogeneous, well-dispersed, relatively strong solid material.
What is single base propellant?
To add a little more on propellant, Single Base propellants are constructed by bringing together the NC with the additives and solvents to obtain the gelatinization.
What are the types of solid propellants?
Two general types of solid propellants are in use. The first, the so called double-base propellant, consists of nitrocellulose and nitroglycerine, plus additives in small quantity. There is no separate fuel and oxidizer. The molecules are unstable, and upon ignition break apart and rearrange themselves, liberating large quantities of heat.
What is the chemical composition of propellant?
The first, the so called double-base propellant, consists of nitrocellulose and nitroglycerine, plus additives in small quantity. There is no separate fuel and oxidizer. The molecules are unstable, and upon ignition break apart and rearrange themselves, liberating large quantities of heat.