Skip to Content
Merck

Key Documents

View All Documentation

1.04819

Ethylenedinitrilotetraacetic acid dipotassium salt dihydrate

suitable for titration

Synonym(s):

Ethylenedinitrilotetraacetic acid dipotassium salt dihydrate, Ethylenedinitrilotetraacetic acid dipotassium salt, Titriplex® Potassium salt

Sign In to View Organizational & Contract Pricing.

Select a Size

Change View

About This Item

Empirical Formula (Hill Notation):
C10H14K2N2O8 · 2H2O
CAS Number:
25102-12-9
Molecular Weight:
404.45
MDL number:
MFCD00150036
UNSPSC Code:
12352107
EC Index Number:
217-895-0
NACRES:
NA.21
eCl@ss:
32150319
Technical Service
Need help? Our team of experienced scientists is here for you.
Let Us Assist

Product Name

Ethylenedinitrilotetraacetic acid dipotassium salt dihydrate, for analysis

Quality Segment

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

272 °C

bulk density

310 kg/m3

storage temp.

15-25°C

SMILES string

[K+].[K+].N(CCN(CC(=O)[O-])CC(=O)[O-])(CC(=O)[O-])CC(=O)[O-].O.O.[H+].[H+]

InChI

1S/C10H16N2O8.2K.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

JFROQFOCFOKDKU-UHFFFAOYSA-L

Analysis Note

Assay (complexometric; calculated on dried substance): ≥ 99.0 %


Identity (IR): conforms


Identity (Potassium): conforms


Appearance of solution (50 g/l; water): Clear and colourless


pH (50 g/l; water): 4.0 - 5.0


In water insoluble matter: ≤ 0.003 %


Chloride (Cl): ≤ 0.004 %


Sulfate (SO₄): ≤ 0.05 %


Cyanide (CN): ≤ 0.001 %


Heavy metals (as Pb): ≤ 0.0005 %


Cu (Copper): ≤ 0.0001 %


Fe (Iron): ≤ 0.001 %


Nitrilotriacetic acid: ≤ 0.05 %


Loss on drying (150 °C; 6 h): 8.5 - 9.5 %

Legal Information

Titriplex is a registered trademark of Merck KGaA, Darmstadt, Germany

Still not finding the right product?

Explore all of our products under Ethylenedinitrilotetraacetic acid dipotassium salt dihydrate

Pictograms

Exclamation mark
GHS07

Signal Word

Warning

Hazard Codes

H332

Precautionary Statements

P261 - P271 - P304 + P340 + P312

Hazard Classifications

Acute Tox. 4 Inhalation

Storage Class

11 - Combustible Solids

WGK

WGK 2

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number

Don't see the Right Version?

If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

Search for a COA

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library