Benzoic acid, 2-hydroxy-3(or 5)-[[4-[(1-hydroxy-5-sulfo-2-naphthalenyl)azo]-1-naphthalenyl]azo]-, disodium salt

CAS No.
8048-91-7
Chemical Name:
Benzoic acid, 2-hydroxy-3(or 5)-[[4-[(1-hydroxy-5-sulfo-2-naphthalenyl)azo]-1-naphthalenyl]azo]-, disodium salt
Synonyms
Mordant Black 68;C.I.Mordant Black 68:C.I.26751;Benzoic acid, 2-hydroxy-3(or 5)-[[4-[(1-hydroxy-5-sulfo-2-naphthalenyl)azo]-1-naphthalenyl]azo]-, disodium salt
CBNumber:
CB44783369
Molecular Formula:
Molecular Weight:
0
MDL Number:
MOL File:
Mol file

Benzoic acid, 2-hydroxy-3(or 5)-[[4-[(1-hydroxy-5-sulfo-2-naphthalenyl)azo]-1-naphthalenyl]azo]-, disodium salt Chemical Properties,Uses,Production

Preparation

3-Amino-2-hydroxybenzoic acid and 5-Amino-2-hydroxybenzoic acid diazotization, and Naphthalen-1-amine coupling, product to diazotization, and 5-Hydroxynaphthalene-1-sulfonic acid coupling.

Properties and Applications

black. Soluble in water for dark purple, right amount soluble in ethanol. In concentrated sulfuric acid to blue light green, dilution for shallow sauce red. Dye aqueous solution to join concentrated hydrochloric acid for sauce red; Join concentrated sodium hydroxide solution for navy blue.

Standard Ironing Fastness Light Fastness Fulling Persperation Fastness Soaping Water
Alkali Acid
ISO 5 5 4 4 4-5 5 5

Benzoic acid, 2-hydroxy-3(or 5)-[[4-[(1-hydroxy-5-sulfo-2-naphthalenyl)azo]-1-naphthalenyl]azo]-, disodium salt Preparation Products And Raw materials

Benzoic acid, 2-hydroxy-3(or 5)-[[4-[(1-hydroxy-5-sulfo-2-naphthalenyl)azo]-1-naphthalenyl]azo]-, disodium salt Mordant Black 68 C.I.Mordant Black 68:C.I.26751 8048-91-7