| CAS No.: | 91-20-3 |
|---|---|
| Formula: | C10h8 |
| EINECS: | 202-049-5 |
|
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| THE SAMPLE OF THE GOODS | Refined Naphthalene |
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Appearance
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White |
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Crystallization Point
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79.88 |
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Ash Content
|
0.006 |
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Non-volatile Matter Content
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0.01 |
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Color Number of Acid Washing
Color Comparison
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2 |
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Naphthalene Content
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99.45 |
Naphthalene is used mainly as a precursor to other chemicals. The single largest use of naphthalene is the industrial production of phthalic anhydride, although more phthalic anhydride is made from o-xylene. Many azo dyes are produced from naphthalene, and so is the insecticide 1-naphthyl-N-methylcarbamate (carbaryl). Other useful agrichemicals include naphthoxyacetic acids.
Naphthalenesulfonic acids and sulfonates
Many naphthalenesulfonic acids and sulfonates are useful. Alkyl naphthalene sulfonate are surfactants, The aminonaphthalenesulfonic acids, naphthalenes substituted with ethers and sulfonic acids, are intermediates in the preparation of many synthetic dyes.
Wetting agent and surfactant
Alkyl naphthalene sulfonates (ANS) are used in many industrial applications as nondetergent wetting agents that effectively disperse colloidal systems in aqueous media. The major commercial applications are in the agricultural chemical industry, which uses ANS for wettable powder and wettable granular (dry-flowable) formulations, and the textile and fabric industry, which utilizes the wetting and defoaming properties of ANS for bleaching and dyeing operations.
Other uses
It is used in pyrotechnic special effects such as the generation of black smoke and simulated explosions. It is used to create artificial pores in the manufacture of high-porosity grinding wheels.
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