[A17536] CAS 1787-61-7 | Eriochrome Black T | Alfa
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Brand: Alfa Aesar
1787-61-7 | C20H12N3NaO7S | eriochrome black T
Chemical Identifiers
CAS
1787-61-7
Molecular Weight (g/mol)
461.38
Synonym
eriochrome black T
SMILES
[Na+].OC1=C2C=CC=CC2=CC=C1NN=C1/C(=O)C=C(C2=CC(=CC=C12)[N+]([O-])=O)S([O-])(=O)=O
InChI Key
JHUJLRKQZAPSDP-GXTSIBQPSA-M
Molecular Formula
C20H12N3NaO7S
IUPAC Name
sodium (4Z)-4-[2-(1-hydroxynaphthalen-2-yl)hydrazin-1-ylidene]-7-nitro-3-oxo-3,4-dihydronaphthalene-1-sulfonate
Specifications
Appearance (Color)
Black
Identification (FTIR)
Conforms
Form
Crystals or powder or crystalline powder
lambda-max (UV-Vis)
605 – 625 nm @ pH=10
Loss on Drying
≤8%
설명
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.
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.
Other References:
Merck Index:14,3667Beilstein:4121162
GHS Hazard and Precautionary Statements
Hazard Statements:H319-H336-H500
GHS H StatementH315-H319-H335Causes skin irritation.Causes serious eye irritation.May cause respiratory irritation.
Precautionary Statements:P261-P264b-P271-P280i-P304+P340-P305+P351+P338-P312-P501c
Risk & Safety
TSCA:YesRTECS Number:QK2197000
경고:RUO – Research Use Only
CAS1787-61-7FORMULAC20H12N3NaO7SEINECS217-250-3MDLMFCD00003935
| Pakage | 100g, 500g |
|---|---|
| brand | Alfa Aesar |
