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A chemical or compound that causes a sudden, almost instantaneous release or pressure, gas, heat and light when subjected to sudden shock, pressure, high temperature or applied potential.

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Peroxide

A compound containing oxygen in the -1 oxidation state. Metal peroxides contain the peroxide ion, O22

Explosive limits

The range of concentrations over which a flammable vapour mixed with proper ratios of air will ignite or explode if a source of ignitions is provided.

Active Metal

Metal with low ionization energy that loses electrons readily to form cations.

How is colored crystal made?

However, not everyone knows that in addition to the traditional transparent, there is still an unusually beautiful and spectacular colored crystal, which is obtained through the addition of various metal oxides into the glass. They give the crystal unusually noble shades of red, purple, blue, green and pink colors.

Diamagnetism

Weak repulsion by a magnetic field.

Nuclear Reaction

Involves a change in the composition of a nucleus and can evolve or absorb an extraordinarily large amount of energy.

Thermal Cracking

Decomposition by heating a substance in the presence of a catalyst and in the absence of air.

 

End Point

The point at which an indicator changes colour and a titration is stopped.

DP number

The degree of polymerization, the average number of monomer units per polymer unit.

Anion

A negative ion, an atom or goup of atoms that has gained one or more electrons.