Contact us: +91 9550333722 040 - 40102781
Structured search
India
Choose your country
Different countries will display different contents
Try our best to find the right business for you.
My chemicalbook

Welcome back!

HomeProduct name list1-Naphthol-5-sulfonic acid

1-Naphthol-5-sulfonic acid

  • CAS NO.:117-59-9
  • Empirical Formula: C10H8O4S
  • Molecular Weight: 224.23
  • MDL number: MFCD00065326
  • EINECS: 204-199-7
  • SAFETY DATA SHEET (SDS)
  • Update Date: 2024-11-04 20:04:46
1-Naphthol-5-sulfonic acid Structural

What is 1-Naphthol-5-sulfonic acid?

Chemical properties

Off-white to reddish paste. Dissolved in water. 1-Hydroxynaphthalene-5-sulfonic acid [117-59-9]. (5-hydroxynaphthalene-1-sulfonic acid), oxy L acid, Azurin acid, C10H8O4S, Mr 224.2, and its salts are very soluble in water, but the sodium salt may be precipitated from solution by salting out. Coupling with diazo compounds normally occurs in the 2-position but takes place in the 4-position with stronger diazo compounds such as diazotized nitroanilines. Sulfonation yields 1-hydroxynaphthalene-2,5-disulfonic acid; vigorous alkali fusion gives 1,5-dihydroxynaphthalene. Bromination in acetic acid yields 2,3-dibromo-1,4-naphthoquinone-5-sulfonic acid.

The Uses of 1-Naphthol-5-sulfonic acid

1-Naphthol-5-sulfonic acid is used to prepare dyes and organic pigments, such as direct dark blue L, pigment purple sauce BLC, lake purple red CK, etc. It is also used to prepare photoresist sensitizer 215.

Synthesis

1-Naphthol-5-sulfonic acid is obtained from 1-naphthylamine-5-sulfonic acid by salification, hydrolysis and neutralization.

Properties of 1-Naphthol-5-sulfonic acid

Melting point: 110~112℃
Density  1.549±0.06 g/cm3(Predicted)
storage temp.  Sealed in dry,Room Temperature
pka 0.26±0.40(Predicted)
CAS DataBase Reference 117-59-9(CAS DataBase Reference)
EPA Substance Registry System 1-Naphthalenesulfonic acid, 5-hydroxy- (117-59-9)

Safety information for 1-Naphthol-5-sulfonic acid

Computed Descriptors for 1-Naphthol-5-sulfonic acid

Related products of tetrahydrofuran

You may like

Statement: All products displayed on this website are only used for non medical purposes such as industrial applications or scientific research, and cannot be used for clinical diagnosis or treatment of humans or animals. They are not medicinal or edible.