99.5% 1-Naphthol；

99.5% 1-Naphthol；
99.5% 1-Naphthol；

99.5% 1-Naphthol；

Min.Order / FOB Price:Get Latest Price

100 Gram

Negotiable

  • Min.Order :100 Gram
  • Purity: 99.50%
  • Payment Terms : L/C,D/A,D/P,T/T,Other

Keywords

90-15-3 trader 90-15-3 white flakes 99.5% 1-Naphthol

Quick Details

  • Appearance:Crystalline Flakes
  • Application:Organic intermediates
  • PackAge:Can be packaged in accordance with customer requirements
  • ProductionCapacity:|Metric Ton|Day
  • Storage:Store below +30°C.
  • Transportation:By air by sea.

Superiority:

Our company has been committed to technology innovation, and process improving, while focusing on the development of new products. We have a brand new standard R & D center, and have established friendly partner-ship with several OEM plants in China. Various sizes of glass-lined reactor systems permit batch sizes from lab-scale, through semi-bulk to large scale. Our extensively experienced R&D team takes pleasure in accepting our customer’s challenges and delivering fast, flexible, customized and innovative solutions and products. Our efficient Sourcing department is at our customer’s disposal to find fine and rare chemicals through our?extensive network.

Details:

Naphthol is a compound formed when a hydrogen atom in a naphthalene ring is replaced by a hydroxyl group. There are two isomers, α- and β -naphthol, also known as 1-naphthol and 2-naphthol. The molecular formula is C10H7OH, and the structural formula is shown in the figure respectively. They're all white crystals. The α -isomer is acicular crystal, melting point 96℃, relative density 1.099(99/4℃). It can evaporate with water vapor or sublimate. β -isomers are rhombic crystals, melting point 123 ~ 124℃, density 1.28 g/cm 3(20℃). Both are difficult to dissolve in water, soluble in ethanol, benzene Chemicalbook, chloroform and other organic solvents. Dissolve in sodium hydroxide solution to generate corresponding naphthol sodium salt. In the ferric chloride aqueous solution, color reaction occurs, α -isomer is purple, β -isomer is green. Naphthalene can be first sulfonated at different temperatures, such as at about 60℃ and concentrated sulfuric acid reaction is mainly α -naphthalene sulfonic acid, reaction at 160℃ is mainly β -naphthalene sulfonic acid; Then they are respectively with sodium hydroxide eutectic naphthol sodium salt, the final acidification and prepared. They have combustion and irritation, inhalation of large amounts of naphthol dust or steam can lead to poisoning, symptoms of convulsion, vomiting, coma and so on.

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