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Sigma-Aldrich 858390 Eriochrome Black T ACS reagent (indicator grade) 500 gr

Stok Kodu
LB.SA.858390-500G
Kısa Bilgi
Synonym(s): Mordant Black 11 Empirical Formula (Hill Notation): C20H12N3NaO7S CAS Number: 1787-61-7 Molecular Weight: 461.38 Colour Index Number: 14645 Beilstein: 4121162 EC Number: 217-250-3 MDL number: MFCD00003935 PubChem Substance ID: 24888460 NACRES: NA.47
Ön Siparişli Ürün
Sigma-Aldrich 858390 Eriochrome Black T ACS reagent (indicator grade) 500 gr 
Synonym(s): Mordant Black 11
Empirical Formula (Hill Notation):
C20H12N3NaO7S
CAS Number:
1787-61-7
Molecular Weight:
461.38
Colour Index Number:
14645
Beilstein:
4121162
EC Number:
217-250-3
MDL number:
MFCD00003935
PubChem Substance ID:
24888460
NACRES:
NA.47
Sigma-Aldrich 858390 Erıochrome Black T ACS reagent (indicator grade)        
PROPERTIES
grade ACS reagent (indicator grade)
Quality Level
200
form
powder clarity of soln passes test
technique(s)
titration: suitable
λmax
503 nm
suitability
passes test for complexometric indicator
application(s)
diagnostic assay manufacturing, hematology, histology
storage temp.
room temp
SMILES string
[Na+].Oc1cc(c2cc(ccc2c1\N=N\c3ccc4ccccc4c3O)[N+]([O-])=O)S([O-])(=O)=O
InChI
1S/C20H13N3O7S.Na/c24-17-10-18(31(28,29)30)15-9-12(23(26)27)6-7-14(15)19(17)22-21-16-8-5-11-3-1-2-4-13(11)20(16)25;/h1-10,24-25H,(H,28,29,30);/q;+1/p-1/b22-21+;
InChI key
AMMWFYKTZVIRFN-QUABFQRHSA-M


DESCRIPTION
General description
Eriochrome® Black T is a hydroxyl-arylazo dye and is generally supplied as a monosodium salt. This dye exists as a dark violet powder with green metallic sheen. Eriochrome Black T is soluble in water and alcohol, but insoluble in common organic solvents.[1] It is mainly used as an indicator in ethylenediaminetetraacetic acid (EDTA) method to determine hardness of water.[2]
Eriochrome® Black T is used as an indicator for complexometric titrations.[3] It functions as an acid-base indicator.[4] Eriochrome® Black T forms complex with Ca2+ and Mg2+, but it binds more strongly to Mg2+ ions.[5]
Application
Eriochrome® Black T has been used to determine the concentration of Ca2+ using complexometric titration method.[6]
Legal Information
Eriochrome is a registered trademark of Huntsman Petrochemical, LLC

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Sigma Aldrich 432504 Sodium amide 95%
Sigma-Aldrich 858390 Eriochrome Black T ACS reagent (indicator grade) 500 gr Synonym(s): Mordant Black 11, Empirical Formula (Hill Notation): C20H12N3NaO7S CAS Number: 1787-61-7, Molecular Weight: 461.38, Colour Index Number: 14645 LB.SA.858390-500G
Sigma-Aldrich 858390 Eriochrome Black T ACS reagent (indicator grade) 500 gr

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