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Ethylenedinitrilotetraacetic acid disodium salt dihydrate

Ethylenedinitrilotetraacetic acid disodium salt dihydrate. CAS 6381-92-6, chemical formula C₁₀H₁₄N₂O₈*2Na*2H₂O.

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Synonym(s):
Ethylenediaminetetraacetic acid disodium salt dihydrate, Disodium dihydrogen ethylenediaminetetraacetate, Ethylenediaminetetraacetic acid disodium salt, Disodium ethylenediaminetetraacetate dihydrate, EDTA disodium salt, EDTA-Na2, Edathamil, Edetate disodium salt dihydrate, Sequestrene Na2
Empirical Formula (Hill Notation):
C10H14N2Na2O8 · 2H2O
CAS Number:
6381-92-6
Molecular Weight:
372.24
Beilstein:
3900609
UNSPSC Code:
12352107
EC Index Number:
205-358-3
NACRES:
NA.21

Quality Level

100

form

solid

potency

>2000 mg/kg LD50, oral (Rat)

reaction suitability

reaction type: Complexometric reactions

technique(s)

titration: suitable

pH

4-5 (20 °C, 50 g/L in H2O)

mp

248 °C (dec.) (lit.)

solubility

100 g/L

bulk density

700 kg/m3

storage temp.

no temp limit

SMILES string

O.O.O.O.[Na+].[Na+].[Na+].[Na+].OC(=O)CN(CCN(CC([O-])=O)CC([O-])=O)CC(O)=O.OC(=O)CN(CCN(CC(O)=O)CC([O-])=O)CC([O-])=O

InChI

1S/C10H16N2O8.2Na.2H2O/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);;;2*1H2/q;2*+1;;/p-2

InChI key

OVBJJZOQPCKUOR-UHFFFAOYSA-L

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Application

Chelator of divalent cations. Inhibits enzymes, such as metalloproteases, that require divalent cations for activity.

Analysis Note

Assay (complexometric; calculated as dihydrate): 99.0 - 101.0 %
Identity (IR-spectrum): passes test
Identity (Complexation): passes test
Identity (Sodium): passes test
pH (50 g/l; water): 4.0 - 5.5
In water insoluble matter: ≤ 0.003 %
Chloride (Cl): ≤ 0.004 %
Sulphate (SO₄): ≤ 0.01 %
Cyanide (CN): ≤ 0.001 %
Heavy metals (as Pb): ≤ 0.0005 %
Cu (Copper): ≤ 0.0001 %
Fe (Iron): ≤ 0.0005 %
Pb (Lead): ≤ 0.001 %
Nitrilotriacetic acid (HPLC): ≤ 0.05 %
Loss on drying (150 °C; 6 h): 8.7 - 11.4 %

Other Notes

Elimination of water of crystallization: 110 °C

Pictograms

Exclamation markHealth hazard
GHS07,GHS08

Signal Word

Warning

Hazard Statements

H332 - H373

Hazard Classifications

Acute Tox. 4 Inhalation - STOT RE 2 Inhalation

Target Organs

Respiratory Tract

Storage Class Code

11 - Combustible Solids

WGK

WGK 2

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificates of Analysis (COA)

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