All Categories
History
This section provides an overview for naphthalene as well as their applications and principles. Also, please take a look at the list of 1 naphthalene manufacturers and their company rankings.
Table of Contents
Naphthalene is an aromatic hydrocarbon with a bicyclic fused ring. When exposed to ultraviolet light, naphthalene emits a purple fluorescence.
Naphthalene has a distinctive odor and sublimates at room temperature. Naphthalene is insoluble in water, but soluble in many organic solvents, such as ethanol, ether, and benzene.
Naphthalene is a useful synthetic intermediate when it undergoes elementary, sulfonation, nitration, and other reactions.
Naphthalene is the most abundant component in coal tar and is obtained by refining coal tar. When naphthalene oil extracted from coal tar is forced to cool, naphthalene precipitates as crystals.
Naphthalene is highly volatile even at room temperature and is widely used in daily life as an insecticide and deodorant. Phthalic anhydride, which is produced from naphthalene, is also used as raw material for polyester fiber.
Naphthalene is also widely used as a dye intermediate, synthetic resin, insecticide, sterilizer, fuel, surfactant, dispersant for emulsion polymerization that gives rubber flexibility, and raw material for organic chemical synthesis such as organic pigments.
Hydrogenation of naphthalene yields tetralin and decalin, which are useful solvents for chemical synthesis and the production of ink paints.
*Including some distributors, etc.
Sort by Features
Sort by Area
Junsei Chemical Co. Ltd., established in 1948 and headquartered in Tokyo, Japan, is a manufacturer of chemical reagents and chemical products, including commissioned synthesis of chemical products. Some of the products it makes include Sodium chloride solution, concentrated glycerin, calcium chloride, ascorbic acid, and nitric acid. The chemical products have a wide range of applications and can be used in pathological examination, as food additives, for analysis, and in the pharmaceutical industry. All its plants, including its research institute, are ISO4001 and ISO9001 certified, while its Saitama and Ibaraki plants are equipped with buildings that comply with GMP.
Number of Employees
Newly Established Company
Company with a History
*Including some distributors, etc.
| Country | Number of Companies | Share (%) |
|---|---|---|
|
Japan
|
1 | 100.0% |
