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Thermo Scientific Chemicals Eriochrome Black T

Product Code. 11458167
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Quantity:
100 g
500 g
This item is not returnable. View return policy
This item is not returnable. View return policy

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.
TRUSTED_SUSTAINABILITY

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

Specifications

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
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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

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