EDTA(Disodium)
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Post Date:
Oct 11,2018
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Expiry Date:
Oct 11,2019
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Detailed Description:
Cas No. :60-00-4
Payment Method: T/T D/A D/P L/C
Ethylene Diamine Tetraacetic Acid (EDTA) 60-00-4
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Ethylenediaminetetraacetic acid, widely abbreviated as EDTA (for other names, see Table), is a polyamino carboxylic acid and a colourless, water-soluble solid. Its conjugate base is named ethylenediaminetetraacetate. It is widely used to dissolve limescale. Its usefulness arises because of its role as a hexadentate ("six-toothed") ligand and chelating agent, i.e. its ability to "sequester" metal ions such as Ca2+ and Fe3+. After being bound by EDTA, metal ions remain in solution but exhibit diminished reactivity. EDTA is produced as several salts, notably disodium EDTA and calcium disodium EDTA.
Ethylenediaminetetraacetic acid
Preferred IUPAC name[hide]
2,2',2'',2'''-(Ethane-1,2-diyldinitrilo)tetraacetic acid
Systematic name[hide]
2-({2-[bis(carboxymethyl)amino]ethyl}(carboxymethyl)amino)acetic acid
Other names[hide]
Diaminoethane-tetraacetic acid
Edetic acid
Ethylenedinitrilo-tetraacetic acid
Versene
Identifiers
Abbreviations EDTA
H4EDTA
CAS number 60-00-4 Y, 15251-22-6 (2H),(2H),(2H)
PubChem 6049 Y, 46781544 (13C),(13C),(1-13C) Y, 16217600 (2H),(2H),(2H) Y
ChemSpider 5826 Y, 17345117 (2H),(2H),(2H) Y
UNII 9G34HU7RV0 Y[U.S.FDA]
EC number 200-449-4
UN number 3077
DrugBank DB00974
KEGG D00052 Y
MeSH Edetic+acid
ChEBI CHEBI:42191 Y
ChEMBL CHEMBL858 Y
RTECS number AH4025000
ATC code V03AB03
Beilstein Reference 1716295
Jmol-3D images Image 1
SMILES
[show]
C(CN(CC(=O)O)CC(=O)O)N(CC(=O)O)CC(=O)O
InChI
[show]
InChI=1S/C10H16N2O8/c13-7(14)3-11(4-8(15)16)1-2-12(5-9(17)18)6-10(19)20/h1-6H2,(H,13,14)(H,15,16)(H,17,18)(H,19,20) Y
Key: KCXVZYZYPLLWCC-UHFFFAOYSA-N Y
InChI=1/C10H16N2O8/c13-7(14)3-11(4-8(15)16)1-2-12(5-9(17)18)6-10(19)20/h1-6H2,(H,13,14)(H,15,16)(H,17,18)(H,19,20)
Key: KCXVZYZYPLLWCC-UHFFFAOYAG
Properties
Molecular formula C10H16N2O8
Molar mass 292.24 g mol−1
Density 0.86 g cm−3
Melting point
237-245 °C, 510-518 K, 459-473 °F (dec.)
Acidity (pKa) pKa1 = 0.0 (NH+) (µ = 1.0)
pKa2 = 1.5 (NH+) (µ = 0.1)
pKa3 = 2.00 (CO2H) (µ = 0.1)
pKa4 = 2.69 (CO2H) (µ = 0.1)
pKa5 = 6.13 CO2H) (µ = 0.1)
pKa6 = 10.37 CO2H) (µ = 0.1)[1]
Hazards
MSDS External MSDS
R-phrases R36
S-phrases S26
Main hazards irritant
NFPA 704
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CAS Registry Number:
60-00-4
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Synonyms:
;Edetic acid;EDTA;EDTA, free acid Ethylenediamine tetraacetic acid, free acid;EDTA, 500 mM Solution, pH 8.0,ULTROL Grade;EDTA-SOLUTION;EDTA ACID;2,2'-{ethane-1,2-diylbis[(carboxymethyl)imino]}diacetate (non-preferred name);3,4-diamino-3,4-bis(carboxymethyl)hexanedioic acid;Ethylene diamine tetraacetic acid;
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Molecular Formula:
C10H16N2O8
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Molecular Weight:
292.2426
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Molecular Structure:
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Hazard Symbols:
Xi:Irritant;
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Risk Codes:
R36/37/38:;
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Safety Description:
S26:;
S37/39:;
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