The word "halogen" is from Greek words meaning "salt" and "maker." Every type of salt contains a halogen, as common table salt (sodium chloride) contains chlorine. ************2nd Opinion...
The name halogen comes from the Greek words "halos"=salt and "genos"=produced by; halogens can produce salts, halogenides. The term was introduced by Berzelius.
Halogen is introduced to increase the efficacy of the luminaire. It is called the halogen regenerative cycle because it removes carbon from the filament cycles it to the outer edge of the envelop...
The term xylene refers to a mixture of three aromatic hydrocarbon isomers essentially benzene derivatives, which encompasses ortho-, meta-, and para- isomers of dimethyl benzene.