naphth-, naphtho-

(Greek > Latin: volatile petroleum derivative; containing, or derived from the coal-tar derivative naphthol)

naphtha
1. Any of various products of petroleum, used as a gasoline ingredient, a source of synthetic natural gas, a paint and varnish thinner, a dry cleaning fluid, and as a raw material for plastics.
2. A clear colorless flammable mixture of light hydrocarbons from petroleum.

It is used as raw material for many petrochemicals and plastics.

naphthalene
1. A white, volatile, monoclinic or platelike solid having a strong coal-tar odor; insoluble in water and soluble in alcohol, ether, and benzene. 2. A white, crystalline, water-insoluble hydrocarbon, usually obtained from coal tar.

Used in making dyes; such as, a moth repellent (mothballs), plastics, dyes, solvents, antiseptics, and insecticides.

naphthalic
1. Formerly, designating an acid probably identical with phthalic acid.
2. Pertaining to, derived from, or related to, naphthalene; used specifically to denote any one of a series of acids derived from naphthalene, and called naphthalene acids.
naphtholism
Poisoning from acute or chronic exposure to excessive amounts of naphthol.

Ingestion of large amounts may cause abdominal pain, vomiting, diarrhea, circulatory failure, convulsions, and death.

External application may cause nephritis, hematuria, hemolytic anemia, jaundice, convulsions, and death.