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1.01154

Supelco

di-Ammonium hydrogen citrate

for analysis EMSURE® ACS,Reag. Ph Eur

Synonym(s):
di-Ammonium hydrogen citrate, Ammonium citrate dibasic, Diammonium hydrogen citrate
Empirical Formula (Hill Notation):
C6H14N2O7
CAS Number:
Molecular Weight:
226.18
MDL number:
EC Index Number:
221-146-3

Quality Level

grade

ACS reagent

Agency

reag. Ph. Eur.

product line

EMSURE®

assay

99.0-102.0% (alkalimetric)

form

solid

impurities

≤0.005% Insoluble matter

ign. residue

≤0.01% (as sulfate)

pH

3.3-5.3 (23 g/L in H2O)

density

1.48 g/cm3 at 20 °C

bulk density

400‑600 kg/m3

anion traces

chloride (Cl-): ≤0.0005%
oxalate (C2O42-): passes test (limit about 0.05%)
phosphate (PO43-): ≤0.0005%
sulfur compounds (as SO42-): ≤0.005%

cation traces

Fe: ≤0.0005%
heavy metals (as Pb): ≤0.0005%

storage temp.

2-30°C

InChI

1S/C6H8O7.2H3N/c7-3(8)1-6(13,5(11)12)2-4(9)10;;/h13H,1-2H2,(H,7,8)(H,9,10)(H,11,12);2*1H3

InChI key

YXVFQADLFFNVDS-UHFFFAOYSA-N

Linkage

Replaces: AX1285-1; AX1285; AX1285-3; AX1285-20

Analysis Note

Assay (alkalimetric): 99.0 - 102.0 %
Insoluble matter: ≤ 0.005 %
pH-value (0.1 mol/L): 3.3 - 5.3
Chloride (Cl): ≤ 0.0005 %
Oxalate (C₂O₄): passes test (Limit about 0.05 %)
Phosphate (PO₄): ≤ 0.0005 %
Total sulfur (as SO₄): ≤ 0.005 %
Heavy metals (as Pb): ≤ 0.0005 %
Fe (Iron): ≤ 0.0005 %
Residue on ignition (as sulfate): ≤ 0.01 %
Corresponds to ACS,Reag. Ph Eur

Legal Information

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

Pictograms

Exclamation mark

Signal Word

Warning

Hazard Statements

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificate of Analysis

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Certificate of Quality

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