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Mordant Black 17 is a dark red to black powder that is soluble in water, Cellosolve, and slightly soluble in ethanol and acetone. It is a blue acid dye that can be used for dyeing various materials.

2538-85-4

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2538-85-4 Usage

Uses

Used in Textile Industry:
Mordant Black 17 is used as a dye for wool, silk, and nylon after chrome dyeing. It is also used for dyeing wool and various fiber blended fabrics.
Used in Direct Printing:
Mordant Black 17 can be used in acetic acid chromium pretreatment of wool fabric for direct printing.
Used in Leather and Biological Dyeing:
Mordant Black 17 can be used for dyeing leather and biological materials.
Used as an Indicator:
Mordant Black 17 can be used as an indicator due to its color change properties in different chemical environments.
Chemical Properties:
Mordant Black 17 is a dark brown to purple powder that exhibits different colors when dissolved in various chemicals. In concentrated sulfuric acid, it appears blue, while in concentrated nitric acid, it turns yellow. In a 10% sodium hydroxide solution, it becomes red. Its aqueous solution turns olive yellow brown when mixed with concentrated hydrochloric acid and purple black when mixed with concentrated sodium hydroxide solution. The dye's color and lustre become more red when it encounters copper ions, but it should not come into contact with iron ions.
Standard:
Mordant Black 17 has different ratings for various properties according to ISO and AATCC standards. For ironing fastness, light fastness, fulling, perspiration fastness, soaping, water, alkali, and acid resistance, the ratings range from 3-5, 4-8, 4-5, 3-4, 4-5, 5, and 5, respectively.

Preparation

4-Amino-3-hydroxynaphthalene-1-sulfonic acid diazotization, and Naphthalen-2-ol coupling.

Standard

Ironing Fastness

Alkali

Acid

ISO

4-5

AATCC

4-5

Purification Methods

Free it from metallic impurities by three precipitations from aqueous solution by addition of HCl. The precipitated dye is dried at 60o under vacuum and converted into the Na salt with the calculated amount of alkali. It is an indicator in the complexometry of Al, Fe and Zr. [Beilstein 16 H 297, 16 IV 428.]

Check Digit Verification of cas no

The CAS Registry Mumber 2538-85-4 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,5,3 and 8 respectively; the second part has 2 digits, 8 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 2538-85:
(6*2)+(5*5)+(4*3)+(3*8)+(2*8)+(1*5)=94
94 % 10 = 4
So 2538-85-4 is a valid CAS Registry Number.
InChI:InChI=1/C20H14N2O5S.Na/c23-16-10-9-12-5-1-2-6-13(12)19(16)21-22-20-15-8-4-3-7-14(15)18(11-17(20)24)28(25,26)27;/h1-11,23-24H,(H,25,26,27);/q;+1/p-1

2538-85-4 Well-known Company Product Price

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  • Fluka

  • (45550)  Calcon™  indicator (for complexometry (Al, Fe, Zr))

  • 2538-85-4

  • 45550-25G-F

  • 215.28CNY

  • Detail

  • Fluka

  • (45550)  Calcon™  indicator (for complexometry (Al, Fe, Zr))

  • 2538-85-4

  • 45550-100G-F

  • 499.59CNY

  • Detail

2538-85-4SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 11, 2017

Revision Date: Aug 11, 2017

1.Identification

1.1 GHS Product identifier

Product name Mordant Black 17

1.2 Other means of identification

Product number -
Other names Natrium-(2,2'-dihydroxy-naphthyl-(1)-azonaphthalin-(1')-4-sulfonat)

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:2538-85-4 SDS

2538-85-4Synthetic route

sodium (2,2'-dihydroxy naphthyl-(1) azonaphthalene-(1') 4-sulfonate)
2538-85-4

sodium (2,2'-dihydroxy naphthyl-(1) azonaphthalene-(1') 4-sulfonate)

2-Hydroxy-1,4-naphthoquinone
83-72-7

2-Hydroxy-1,4-naphthoquinone

Conditions
ConditionsYield
With sodium hydroxide; oxygen Mechanism; other Eriochrome type dyes;
oxovanadium(II) dihydroxide

oxovanadium(II) dihydroxide

sodium (2,2'-dihydroxy naphthyl-(1) azonaphthalene-(1') 4-sulfonate)
2538-85-4

sodium (2,2'-dihydroxy naphthyl-(1) azonaphthalene-(1') 4-sulfonate)

sodium oxo (2,2'-dihydroxo 4-sulfonato naphthyl-(1) azonaphthaline-(1')) vanadate (IV) hydrate * water

sodium oxo (2,2'-dihydroxo 4-sulfonato naphthyl-(1) azonaphthaline-(1')) vanadate (IV) hydrate * water

Conditions
ConditionsYield
In water boiling in H2O, 6 hours, cooling down, filtration and evaporation;;
In water boiling in H2O, 6 hours, cooling down, filtration and evaporation;;
sodium (2,2'-dihydroxy naphthyl-(1) azonaphthalene-(1') 4-sulfonate)
2538-85-4

sodium (2,2'-dihydroxy naphthyl-(1) azonaphthalene-(1') 4-sulfonate)

C20H12BrN2O5S(1-)*Na(1+)

C20H12BrN2O5S(1-)*Na(1+)

Conditions
ConditionsYield
With bromine

2538-85-4Upstream product

2538-85-4Downstream Products

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