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Does 2-naphthol react with water?

Joe Ford

Does 2-naphthol react with water?

The pKa’s of benzoic acid and 2-naphthol are 4.17 and 9.5, respectively, while naphthalene is a neutral compound. In a chilled environment, both compounds will not be soluble in water, because the solubility of benzoic acid and 2-naphthol in water at 25˚C is 0.34g/100mL and 0.074g/100mL, respectively.

Is 2-naphthol an acid or base?

2-naphthol is weakly acidic with a pKa of 9.5. Unlike the other two compounds in the mixture, naphthalene is neutral.

Is 1-naphthol soluble in water?

1 Naphthols. The naphthols are insoluble in water. They are phenols, soluble in alkaline solution and substantive to cotton, particularly in the presence of salt.

What is the pKa of 2-naphthol?

9.5

Is naphthol polar?

Since naphthol contains a hydroxyl group, it’s a highly polar molecule, with the oxygen atom attracting electron density through the bonds toward itself.

What is the molecular weight of 2-naphthol?

144.17 g/mol

What is B naphthol smell?

either of two isomeric hydroxyl derivatives, C10H7OH, of naphthalene (alpha-naphthol, or 1-naphthol, and beta-naphthol, or 2-naphthol ), white or yellowish crystals, with a phenolic odor, that darken on exposure to light: used chiefly in dyes, drugs, perfumes, and insecticides.

Is 1 naphthol air and or light sensitive?

Stable, but air and light sensitive – store under inert gas. Incompatible with strong bases, strong oxidizing agents.

Is Naphthalene a molecule?

A naphthalene molecule can be viewed as the fusion of a pair of benzene rings. (In organic chemistry, rings are fused if they share two or more atoms.) As such, naphthalene is classified as a benzenoid polycyclic aromatic hydrocarbon (PAH).

What are the properties of naphthalene?

Physical / Chemical Properties:

  • Naphthalene is a white crystalline or colorless to brown solid.
  • Vapor pressure1: 0.087 mmHg.
  • Octanol-Water Partition Coefficient (log Kow)1: 3.29.
  • Henry’s constant1: 4.6 x 10-4 atm·m3/mol.
  • Molecular weight1,3: 128.18 g/mol.
  • Solubility (water)7: 3 mg/100 mL (30 mg/L) at room temperature.

What is the use of naphthalene?

Naphthalene is an aromatic hydrocarbon found in coal tar or crude oil. Naphthalene is used in the manufacture of plastics, resins, fuels, and dyes. It is also used as a fumigant insecticide that works by turning directly from a solid into a toxic vapor. This process is called sublimation.

Is C10H8 polar or nonpolar?

“Like Dissolves Like” Nanthalene, C10H8 (non-polar) dissolves in hexane (non-polar) but not in water (polar).