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2-Naphthalenethiol is an organosulfur compound with the formula C 10 H 7 SH. It is a white solid. It is a white solid. It is one of two mono thiols of naphthalene , the other being 1-naphthalenethiol .
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2-Methoxynaphthalene, also called β-naphthol methyl ether or yara yara, [2] is a stabilizer found in gunpowder, particularly smokeless gunpowders. It is soluble in alcohol , and insoluble in water and dipropylene glycol .
C 10 H 8 + H 2 SO 4 → C 10 H 7 SO 3 H + H 2 O. The sulfonic acid group is then cleaved in molten sodium hydroxide: C 10 H 7 (SO 3 H) + 3 NaOH → C 10 H 7 ONa + Na 2 SO 3 + 2 H 2 O. Neutralization of the product with acid gives 2-naphthol. 2-Naphthol can also be produced by a method analogous to the cumene process. [2]
It was first prepared by Robert Evert and Victor Merz in 1876 by hydrolysis of 2,6-dicyanonaphthalene. [2] [3] 1,8-Naphthalenedicarboxylic acid can be isomerized to 2,6-naphthalenedicarboxylic acid via the intermediacy of the dipotassium dicarboxylates. [2] It is also produced by oxidation of 2,6-diisopropylnaphthalene. [4]
Naphthalene-2-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 mono- and trihydrates C 10 H 7 SO 3 H . 2H 2 O. It is one of two mono sulfonic acids of naphthalene , the other being naphthalene-1-sulfonic acid .
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Naphtha (/ ˈ n æ f θ ə /, recorded as less common or nonstandard [1] in all dictionaries: / ˈ n æ p θ ə /) is a flammable liquid hydrocarbon mixture.Generally, it is a fraction of crude oil, but it can also be produced from natural-gas condensates, petroleum distillates, and the fractional distillation of coal tar and peat.