Explosive material - Initiation of reaction

Any explosive material has the following characteristics: It is chemically or otherwise energetically unstable. The initiation produces a sudden expansion of the material accompanied by the production of heat and large changes in pressure (and typically also a flash or loud noise) which is called the explosion. Explosive material - Chemical explosives. Explosives are classified as low or high explosives according to their rates of decomposition. Low explosives burn rapidly (or d ...

Including:

• Explosive material - Chemical explosives
• Explosive material - Explosive compatibility groupings
• Explosive material - Low Explosives
• Explosive material - High Explosives
• Explosive material - Composition of the material
• Explosive material - Chemical explosive reaction
• Explosive material - Formation of gases
• Explosive material - Evolution of heat
• Explosive material - Rapidity of reaction
• Explosive material - Initiation of reaction
• Explosive material - Sensitiser
• Explosive material - Military explosives
• Explosive material - Availability and cost
• Explosive material - Sensitivity
• Explosive material - Stability
• Explosive material - Power
• Explosive material - Brisance
• Explosive material - Density
• Explosive material - Volatility
• Explosive material - Hygroscopicity
• Explosive material - Toxicity
• Explosive material - Measurement of chemical explosive reaction
• Explosive material - Oxygen balance OB%
• Explosive material - Heat of explosion
• Explosive material - Balancing chemical explosion equations
• Explosive material - Volume of products of explosion
• Explosive material - Explosive strength
• Explosive material - Example of thermochemical calculations

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The development of new and improved types of ammunition requires a continuous program of research and development. Adoption of an explosive for a particular use is based upon both proving ground and service tests. Before these tests, however, preliminary estimates of the characteristics of the explosive are made. The principles of thermochemistry are applied for this process. Thermochemistry is concerned with the changes in internal energy, principally as heat, in chemical reactions. An explosion consists of a series of reactions, hig ...

See also:

Explosive material, Explosive material - Chemical explosives, Explosive material - Explosive compatibility groupings, Explosive material - Low Explosives, Explosive material - High Explosives, Explosive material - Composition of the material, Explosive material - Chemical explosive reaction, Explosive material - Formation of gases, Explosive material - Evolution of heat, Explosive material - Rapidity of reaction, Explosive material - Initiation of reaction, Explosive material - Sensitiser, Explosive material - Military explosives, Explosive material - Availability and cost, Explosive material - Sensitivity, Explosive material - Stability, Explosive material - Power, Explosive material - Brisance, Explosive material - Density, Explosive material - Volatility, Explosive material - Hygroscopicity, Explosive material - Toxicity, Explosive material - Measurement of chemical explosive reaction, Explosive material - Oxygen balance OB%, Explosive material - Heat of explosion, Explosive material - Balancing chemical explosion equations, Explosive material - Volume of products of explosion, Explosive material - Explosive strength, Explosive material - Example of thermochemical calculations

Read more here: » Explosive material: Encyclopedia II - Explosive material - Measurement of chemical explosive reaction

Explosives are classified as low or high explosives according to their rates of decomposition: low explosives burn rapidly (or deflagrate), while high explosives undergo detonation. No sharp distinction exists between low and high explosives, because of the difficulties inherent in precisely observing and measuring rapid decomposition. The chemical decomposition of an explosive may take years, days, hours, or a fraction of a second. The slower processes of decomposition take place in storage and are of interest only from a stability standpoi ...

See also:

Explosive material, Explosive material - Chemical explosives, Explosive material - Explosive compatibility groupings, Explosive material - Low Explosives, Explosive material - High Explosives, Explosive material - Composition of the material, Explosive material - Chemical explosive reaction, Explosive material - Formation of gases, Explosive material - Evolution of heat, Explosive material - Rapidity of reaction, Explosive material - Initiation of reaction, Explosive material - Sensitiser, Explosive material - Military explosives, Explosive material - Availability and cost, Explosive material - Sensitivity, Explosive material - Stability, Explosive material - Power, Explosive material - Brisance, Explosive material - Density, Explosive material - Volatility, Explosive material - Hygroscopicity, Explosive material - Toxicity, Explosive material - Measurement of chemical explosive reaction, Explosive material - Oxygen balance OB%, Explosive material - Heat of explosion, Explosive material - Balancing chemical explosion equations, Explosive material - Volume of products of explosion, Explosive material - Explosive strength, Explosive material - Example of thermochemical calculations

Read more here: » Explosive material: Encyclopedia II - Explosive material - Chemical explosives

To determine the suitability of an explosive substance for military use, its physical properties must first be investigated. The usefulness of a military explosive can only be appreciated when these properties and the factors affecting them are fully understood. Many explosives have been studied in past years to determine their suitability for military use and most have been found wanting. Several of those found acceptable have displayed certain characteristics that are considered undesirable and, therefore, limit their usefulness in militar ...

See also:

Explosive material, Explosive material - Chemical explosives, Explosive material - Explosive compatibility groupings, Explosive material - Low Explosives, Explosive material - High Explosives, Explosive material - Composition of the material, Explosive material - Chemical explosive reaction, Explosive material - Formation of gases, Explosive material - Evolution of heat, Explosive material - Rapidity of reaction, Explosive material - Initiation of reaction, Explosive material - Sensitiser, Explosive material - Military explosives, Explosive material - Availability and cost, Explosive material - Sensitivity, Explosive material - Stability, Explosive material - Power, Explosive material - Brisance, Explosive material - Density, Explosive material - Volatility, Explosive material - Hygroscopicity, Explosive material - Toxicity, Explosive material - Measurement of chemical explosive reaction, Explosive material - Oxygen balance OB%, Explosive material - Heat of explosion, Explosive material - Balancing chemical explosion equations, Explosive material - Volume of products of explosion, Explosive material - Explosive strength, Explosive material - Example of thermochemical calculations

Read more here: » Explosive material: Encyclopedia II - Explosive material - Military explosives

Explosives are classified as low or high explosives according to their rates of decomposition. Low explosives burn rapidly (or deflagrate). High explosives undergo detonation. There is no sharp line of demarcation between low and high explosives, due to the difficulties inherent in precisely observing and measuring rapid decomposition. The chemical decomposition of an explosive may take years, days, hours, or a fraction of a second. The slower forms of decomposition take place in storage and are of interest only from a stability standpoint. ...

See also:

Explosive material, Explosive material - Chemical explosives, Explosive material - Explosive compatibility groupings, Explosive material - Low Explosives, Explosive material - High Explosives, Explosive material - Composition of the material, Explosive material - Chemical explosive reaction, Explosive material - Formation of gases, Explosive material - Evolution of heat, Explosive material - Rapidity of reaction, Explosive material - Initiation of reaction, Explosive material - Sensitiser, Explosive material - Military explosives, Explosive material - Availability and cost, Explosive material - Sensitivity, Explosive material - Stability, Explosive material - Power, Explosive material - Brisance, Explosive material - Density, Explosive material - Volatility, Explosive material - Hygroscopicity, Explosive material - Toxicity, Explosive material - Measurement of chemical explosive reaction, Explosive material - Oxygen balance OB%, Explosive material - Heat of explosion, Explosive material - Balancing chemical explosion equations, Explosive material - Volume of products of explosion, Explosive material - Explosive strength, Explosive material - Example of thermochemical calculations

Read more here: » Explosive material: Encyclopedia II - Explosive material - Chemical explosives

A chemical explosive is a compound or mixture which, upon the application of heat or shock, decomposes or rearranges with extreme rapidity, yielding much gas and heat. Many substances not ordinarily classed as explosives may do one, or even two, of these things. For example, a mixture of nitrogen and oxygen can be made to react with great rapidity and yield the gaseous product nitric oxide; yet the mixture is not an explosive since it does not evolve heat, but rather absorbs heat. N2 + O2 → ...

See also:

Explosive material, Explosive material - Chemical explosives, Explosive material - Explosive compatibility groupings, Explosive material - Low Explosives, Explosive material - High Explosives, Explosive material - Composition of the material, Explosive material - Chemical explosive reaction, Explosive material - Formation of gases, Explosive material - Evolution of heat, Explosive material - Rapidity of reaction, Explosive material - Initiation of reaction, Explosive material - Sensitiser, Explosive material - Military explosives, Explosive material - Availability and cost, Explosive material - Sensitivity, Explosive material - Stability, Explosive material - Power, Explosive material - Brisance, Explosive material - Density, Explosive material - Volatility, Explosive material - Hygroscopicity, Explosive material - Toxicity, Explosive material - Measurement of chemical explosive reaction, Explosive material - Oxygen balance OB%, Explosive material - Heat of explosion, Explosive material - Balancing chemical explosion equations, Explosive material - Volume of products of explosion, Explosive material - Explosive strength, Explosive material - Example of thermochemical calculations

Read more here: » Explosive material: Encyclopedia II - Explosive material - Chemical explosive reaction