4 – Amino-3-hydroxynaphthalene-1-sulphonic acid

Description

4-AMINO-3-HYDROXY NAPHTHALENE-1- SULPHONIC ACID

(1-AMINO-2-NAPHTHOL-4-SULPHONIC ACID)
NH2.C10H5(OH).SO3H = 239.25
Assay 98% min
Sensitivity to phosphate (PO ) Passes test 4
Sulphated ash 0.4% max
Chloride (Cl) 0.01% max

A12509 25 g.

Uses:

In preparation of aniline dyes. Reagent for phosphate and silicate determination.

Additional information