Thermo Scientific Chemicals Eriochrome Black T

Description

Eriochrome black T is used as an indicator in analytical chemistry. It is also used in the detection of rare earth metals. It finds application in dyeing and printing of wool fabric, dyeing of silk and nylon as well as in leather dyeing. It can be used in the spectrophotometric determination of diphenhydramine hydrochloride in pharmaceutical preparations. As a complexometric indicator, it is useful in the determination of hardness of water.

This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

Applications
Eriochrome black T is used as an indicator in analytical chemistry. It is also used in the detection of rare earth metals. It finds application in dyeing and printing of wool fabric, dyeing of silk and nylon as well as in leather dyeing. It can be used in the spectrophotometric determination of diphenhydramine hydrochloride in pharmaceutical preparations. As a complexometric indicator, it is useful in the determination of hardness of water.

Solubility
Soluble in water. Slightly soluble in alcohol and acetone.

Notes
Incompatible with strong oxidizing agents and strong reducing agents.

Specifications

Chemical Identifiers

• CAS: 1787-61-7
• Molecular Formula: C20H12N3NaO7S
• Molecular Weight (g/mol): 461.38
• MDL Number: MFCD00003935
• InChI Key: JHUJLRKQZAPSDP-GXTSIBQPSA-M
• Synonym: C.I. 14645; Mordant Black 11
• PubChem CID: 87355429
• SMILES: [Na+].OC1=C2C=CC=CC2=CC=C1N\N=C1/C(=O)C=C(C2=CC(=CC=C12)[N+]([O-])=O)S([O-])(=O)=O

• Beilstein: 4121162
• Merck Index: 14,3667
• Solubility Information: Soluble in water. Slightly soluble in alcohol and acetone.
• IUPAC Name: (4Z)-4-[(1-hydroxynaphthalen-2-yl)hydrazinylidene]-7-nitro-3-oxonaphthalene-1-sulfonic acid;sodium
• Formula Weight: 461.39
• Quantity: 100 g
• Chemical Name or Material: Eriochrome Black T

Safety and Handling

Product Identifier

• Eriochrome Black T

Signal Word

• Warning

Hazard Category

• Serious eye damage/eye irritation Category 2

Hazard Statement

• H319-Causes serious eye irritation.

Precautionary Statement

• P280-Wear protective gloves/protective clothing/eye protection/face protection.
• P305+P351+P338-IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.

Supplemental information

• MIXTURE LIST-Contains : 1-Naphthalenesulfonic acid, 3-hydroxy-4-[(1-hydroxy-2-naphthalenyl)az

RUO – Research Use Only