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Thermo Scientific Chemicals Eriochrome Black T
CAS: 1787-61-7 | C20H12N3NaO7S | 461.38 g/mol
Supplier: Thermo Scientific Chemicals A1753622
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.
ApplicationsEriochrome 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
| Eriochrome Black T | |
| C20H12N3NaO7S | |
| 4121162 | |
| C.I. 14645; Mordant Black 11 | |
| JHUJLRKQZAPSDP-GXTSIBQPSA-M | |
| (4Z)-4-[(1-hydroxynaphthalen-2-yl)hydrazinylidene]-7-nitro-3-oxonaphthalene-1-sulfonic acid;sodium | |
| 87355429 | |
| 100 g |
| 1787-61-7 | |
| MFCD00003935 | |
| 14,3667 | |
| Soluble in water. Slightly soluble in alcohol and acetone. | |
| [Na+].OC1=C2C=CC=CC2=CC=C1N\N=C1/C(=O)C=C(C2=CC(=CC=C12)[N+]([O-])=O)S([O-])(=O)=O | |
| 461.38 | |
| 461.39 |
Chemical Identifiers
| 1787-61-7 | |
| 461.38 | |
| JHUJLRKQZAPSDP-GXTSIBQPSA-M | |
| 87355429 |
| C20H12N3NaO7S | |
| MFCD00003935 | |
| C.I. 14645; Mordant Black 11 | |
| [Na+].OC1=C2C=CC=CC2=CC=C1N\N=C1/C(=O)C=C(C2=CC(=CC=C12)[N+]([O-])=O)S([O-])(=O)=O |
Safety and Handling
GHS H Statement
H315-H319-H335
Causes skin irritation.
Causes serious eye irritation.
May cause respiratory irritation.
P261-P264b-P271-P280i-P304+P340-P305+P351+P338-P312-P501c
H319-H336-H500
EINECSNumber : 217-250-3
RTECSNumber : QK2197000
TSCA : Yes
Recommended Storage : Ambient temperatures
RUO – Research Use Only