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Ethylenedinitrilotetraacetic acid tripotassium salt dihydrate

Ethylenedinitrilotetraacetic acid tripotassium salt dihydrate. CAS 65501-24-8, pH 8 - 9 (50 g/l, H₂O, 20 °C).

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Synonym(s):
Ethylenedinitrilotetraacetic acid tripotassium salt dihydrate
Empirical Formula (Hill Notation):
C10H13K3N2O8 · 2H2O
CAS Number:
Molecular Weight:
442.54
MDL number:
EC Index Number:
241-543-5

Quality Level

form

solid

reaction suitability

reaction type: Complexometric reactions

technique(s)

titration: suitable

pH

8-9 (20 °C, 50 g/L in H2O)

mp

180-185 °C

storage temp.

no temp limit

InChI

1S/C10H16N2O8.3K.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;3*+1;;/p-3

InChI key

MAPFUJCWRWFQIY-UHFFFAOYSA-K

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0366470072E0270
technique(s)

titration: suitable

technique(s)

-

technique(s)

-

technique(s)

-

form

solid

form

powder or crystals

form

solid

form

powder

pH

8-9 (20 °C, 50 g/L in H2O)

pH

7.0-9.0 (25 °C, 0.1 M in H2O)

pH

-

pH

8-9 (20 °C, 50 g/L)

mp

180-185 °C

mp

182 °C (dec.) (lit.)

mp

182 °C (dec.) (lit.)

mp

182 °C (dec.) (lit.)

storage temp.

no temp limit

storage temp.

-

storage temp.

-

storage temp.

room temp

Analysis Note

Assay (complexometric, calc. on anhydrous substance): ≥ 99 %
Identity (IR-spectrum): passes test
Identity (Potassium): passes test
pH (50 g/l; water): 7.0 - 9.0
Chloride (Cl): ≤ 0.01 %
Heavy metals (as Pb): ≤ 0.002 %
Fe (Iron): ≤ 0.001 %
Water (according to Karl Fischer): 7 - 9 %

Pictograms

Exclamation markHealth hazard

Signal Word

Warning

Hazard Statements

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


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