1,4-Naphthalenedicarboxylic acid [ 605-70-9 ]
Melting point ° C (> 300 lit.)
BRN 2051255
CAS DataBase 605-70-9 (CAS) DataBase instead
EPA chemicals information 1 - Naphthalenedicarboxylic acid (605-70-9)
Chemical properties the sticks the crystallization. Melting point ℃ (℃ 325 309). Soluble in ethanol appear blue fluorescence, insoluble in boiling water.
Use function dye, plastic processing AIDS intermediates.
Use used in the production of fluorescent whitening agent, dye intermediates, etc
Production method by 1 - methyl - 4 - acetyl naphthalene and potessium dichromate potassium in 200-300 ℃, about 4MPa 18h made under oxidation. Can also be made by 1-2 methyl naphthalene with cobalt - manganese - bromine as catalyst in ℃, about 120 3kPa next liquid-phase oxidation.