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Thermo Scientific Chemicals
Eriochrome Black T
CAS: 1787-61-7 | C20H12N3NaO7S | 461.38 g/mol
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Catalog number A17536.36
also known as A17536-36
Price (JPY)Request A Quote
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Quantity:
500 g
Chemical Identifiers
CAS1787-61-7
IUPAC Namesodium (4Z)-4-[2-(1-hydroxynaphthalen-2-yl)hydrazin-1-ylidene]-7-nitro-3-oxo-3,4-dihydronaphthalene-1-sulfonate
Molecular FormulaC20H12N3NaO7S
InChI KeyJHUJLRKQZAPSDP-GXTSIBQPSA-M
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
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Specifications
Specification Sheet
Specification SheetLoss on Drying≤8%
Appearance (Color)Black
Identification (FTIR)Conforms
FormCrystals or powder or crystalline powder
lambda-max (UV-Vis)605 - 625 nm @ pH=10
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.
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.
RUO – Research Use Only
General References:
- Mamba, G.; Mbianda, X. Y.; Mishra, A. K. Enhanced visible light photocatalytic degradation of eriochrome black T and eosin blue shade in water using tridoped titania decorated on SWCNTs and MWCNTs: Effect of the type of carbon nanotube incorporated. Mater. Chem. Phys. 2015, 149-150, 734-742.
- Lee, K. M.; Hamid, S. B. A.; Lai, C. W. Multivariate analysis of photocatalytic-mineralization of Eriochrome Black T dye using ZnO catalyst and UV irradiation. Mater. Sci. Semicond. Process. 2015, 39, 40-48.