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Naphthalene's minimum odor threshold is 0.084 ppm for humans. [43] Mothballs and other products containing naphthalene have been banned within the EU since 2008. [44] [45] In China, the use of naphthalene in mothballs is forbidden. [46] Danger to human health and the common use of natural camphor are cited as reasons for the ban.
1-Naphthol, or α-naphthol, is an organic compound with the formula C 10 H 7 OH.It is a fluorescent white solid. 1-Naphthol differs from its isomer 2-naphthol by the location of the hydroxyl group on the naphthalene ring.
Sodium naphthalene is an organic salt with the chemical formula Na + [C 10 H 8] −. In the research laboratory, it is used as a reductant in the synthesis of organic, organometallic, and inorganic chemistry. It is usually generated in situ. When isolated, it invariably crystallizes as a solvate with ligands bound to Na +. [1]
Naphthostyril derivatives are also of interest in medicinal chemistry. [1] Naphthostyrils can be produced by metal-catalyzed cyclization of 1-naphthylamides. [2] Chemical structure of typical naphtholactam dye. N-Ethylnaphtholactam and related derivatives are precursors to many dyes.
The sulfonic acid derivatives of 1-naphthylamine are used for the preparation of azo dye.These compounds possess the important property of dyeing unmordanted cotton.. An important derivative is naphthionic acid (1-aminonaphthalene-4-sulfonic acid), which is produced by heating 1-naphthylamine and sulfuric acid to 170–180 °C in the presence of crystallized oxalic acid.
Naphthalene-1-sulfonic acid is an organic compound with the formula C 10 H 7 SO 3 H. A colorless, water-soluble solid, it is often available as the dihydrate C 10 H 7 SO 3 H. 2H 2 O. It is one of two monosulfonic acids of naphthalene, the other being the more stable naphthalene-2-sulfonic acid. The compound is mainly used in the production of ...
1,4-Naphthoquinone or para-naphthoquinone is a quinone derived from naphthalene. It forms volatile yellow triclinic crystals and has a sharp odor similar to benzoquinone. It is almost insoluble in cold water, slightly soluble in petroleum ether, and more soluble in polar organic solvents. In alkaline solutions it produces a reddish-brown color ...
Polychlorinated naphthalene (PCN) are the products obtained upon treatment of naphthalene with chlorine. The generic chemical formula is C 10 H 8−(m+n) Cl (m+n). Commercial PCNs are mixtures of up to 75 components and byproducts. [1] The material is an oil or a waxy solid, depending on the degree of chlorination.