| Company Name: | Shanghai Macklin Biochemical Co.,Ltd. Gold |
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| Products Intro: |
Product Name:Naphthalene solution
CAS:91-20-3
Purity:Standard for GC,>=99.5%(GC) Package:2ml |
| Company Name: | Hangzhou QiFei Chemical Co., Ltd. Gold |
| Tel: | 0571-28950939 18058801870 |
| Email: | hzqifeihuagong@163.com |
| Products Intro: |
Product Name:Refined naphthalene
CAS:91-20-3
Purity:99% Package:20KG;1T；5T； |
| Company Name: | J & K SCIENTIFIC LTD. |
| Tel: | 400-666-7788 +86-10-82848833 |
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| Products Intro: |
Product Name:Naphthalene
CAS:91-20-3
Purity:99% Package:1KG,250G |
| Company Name: | Meryer (Shanghai) Chemical Technology Co., Ltd. |
| Tel: | +86-(0)21-61259100(Shanghai) +86-(0)755-86170099(ShenZhen) +86-(0)10-59487313(Beijing) |
| Email: | sh@meryer.com |
| Products Intro: |
Product Name:Naphthalene
CAS:91-20-3
Purity:99% Package:250g;1kg Remarks:AAA125343 |
| Company Name: | 3B Pharmachem (Wuhan) International Co.,Ltd. |
| Tel: | 86-21-50328103 * 801、802、803、804 Mobile:18930552037 |
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| Products Intro: |
Product Name:Naphthalene
CAS:91-20-3
Purity:99% HPLC Package:1Mg ; 5Mg;10Mg ;100Mg;250Mg ;500Mg ;1g;2.5g ;5g ;10g |
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| | Naphthalene Basic information |
| | Naphthalene Chemical Properties |
| mp | 80-82 °C(lit.)
| | bp | 218 °C(lit.)
| | density | 0.99
| | vapor density | 4.4 (vs air)
| | vapor pressure | 0.03 mm Hg ( 25 °C)
| | refractive index | 1.5821 | | Fp | 174 °F
| | storage temp. | APPROX 4°C
| | Water Solubility | 30 mg/L (25 ºC) | | Merck | 14,6370 | | BRN | 1421310 | | CAS DataBase Reference | 91-20-3(CAS DataBase Reference) | | NIST Chemistry Reference | Naphthalene(91-20-3) | | EPA Substance Registry System | Naphthalene(91-20-3) |
| | Naphthalene Usage And Synthesis |
| Chemical Properties | white to almost white crystals, crystalline flakes | | Usage | Naphthalene was used in liquid-phase exfoliation of graphite in organic solvents for the production of graphene sheets. It was used in preparation of carbon-coated Si 70 Sn 30 nanoparticles. It was used as fluorescent probe to study the aggregation behavior of sodium cholate. It was used to investigate influence of added short chain linear and branched alcohols on the binding of 1:1 complex of naphthalene and β-cyclodextrin. | | Air & Water Reactions | Highly flammable. Insoluble in water. | | Reactivity Profile | Vigorous reactions, sometimes amounting to explosions, can result from the contact between aromatic hydrocarbons, such as Naphthalene, and strong oxidizing agents. They can react exothermically with bases and with diazo compounds. Substitution at the benzene nucleus occurs by halogenation (acid catalyst), nitration, sulfonation, and the Friedel-Crafts reaction. Naphthalene, camphor, glycerol, or turpentine will react violently with chromic anhydride [Haz. Chem. Data 1967. p 68]. Friedel-Crafts acylation of Naphthalene using benzoyl chloride, catalyzed by AlCl3, must be conducted above the melting point of the mixture, or the reaction may be violent [Clar, E. et al., Tetrahedron, 1974, 30, 3296]. | | Health Hazard | Fire may produce irritating and/or toxic gases. Contact may cause burns to skin and eyes. Contact with molten substance may cause severe burns to skin and eyes. Runoff from fire control may cause pollution. | | Fire Hazard | Flammable/combustible material. May be ignited by friction, heat, sparks or flames. Some may burn rapidly with flare burning effect. Powders, dusts, shavings, borings, turnings or cuttings may explode or burn with explosive violence. Substance may be transported in a molten form at a temperature that may be above its flash point. May re-ignite after fire is extinguished. |
| | Naphthalene Preparation Products And Raw materials |
| Raw materials | PETROLEUM ETHER-->Biphenyl-->KAOLIN-->COAL TAR-->COAL TAR-->Indene-->ETHYLENE-->1,2,3,4-Tetrahydronaphthalene-->DODECYLBENZENE-->Technical naphthalene-->Phenol oil | | Preparation Products | Phthalic anhydride-->1-Naphthol-->2-Naphthol-->Benzoic acid-->1-Aminonaphthalene-->Glycerite-->Linolenic acid-->2-Amino-4,8-naphthalenedisulfonic acid-->DIBENZANTHRONE-->NAPHTHENIC ACID-->Peri acid-->1-Naphthalene acetic acid-->1'-Acetonaphthone-->1-Aminonaphthalene-6-sulfonic acid-->5-Amino-1-naphthalenesulfonic acid-->Vat Yellow 2-->1,4,5,8-Naphthalenetetracarboxylic acid-->2-Methylbutane-->1-Iodonaphthalene-->BUTYLNAPHTHALENESULFONIC ACID SODIUM SALT-->1,5-Naphthalenedisulfonic acid-->Vat Yellow 4-->Vat Brown 5-->Slushing agent,high efficiency-->SEC-BUTYLAMINE-->BARIUM DINONYLNAPHTHALENESULFONATE-->Slushing agent-->1,5-Dihydroxy naphthalene-->synthetic fiber oil QDC-201-->disodium methylenebisnaphthalenesulphonate-->1-Nitronaphthalene-->Sodium poly[(naphthaleneformaldehyde)sulfonate]-->2,6-DIMETHYLNAPHTHALENE-->Dispersing agent DN-->dispersing agent CNF-->1-Naphthol-5-sulfonic acid |
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