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247561

Sigma-Aldrich

Ammonium citrate dibasic

ACS reagent, 98%

Synonym(s):

Ammonium hydrogencitrate, Citric acid ammonium salt, Diammonium hydrogen citrate

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About This Item

Linear Formula:
HOC(CO2H)(CH2CO2NH4)2
CAS Number:
3012-65-5
Molecular Weight:
226.18
Beilstein:
4925760
EC Number:
221-146-3
MDL number:
MFCD00013068
UNSPSC Code:
12352100
PubChem Substance ID:
24854875
NACRES:
NA.21

grade

ACS reagent

Quality Level

200

vapor density

1.8 (vs air)

Assay

98%
98.0-103.0% (ACS specification)

form

solid

impurities

oxalate, passes test (lim ~0.05%)
≤0.005% insolubles

ign. residue

≤0.01%

pH

5.2 (20 °C, 50 g/L)

anion traces

chloride (Cl-): ≤0.001%
phosphate (PO43-): ≤5 ppm
sulfate (SO42-): ≤0.005%

cation traces

Fe: ≤0.001%
heavy metals: ≤5 ppm (by ICP)

SMILES string

N.N.OC(=O)CC(O)(CC(O)=O)C(O)=O

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

Application

Ammonium citrate dibasic can be used as both carbon and nitrogen precursor to synthesize nitrogen-doped fluorescent carbon nanoparticles (CNPs) for the development of sensitive and selective sensors for picric acid detection. Solution form of ammonium citrate can also be used in leaching experiments to extract copper nanoparticles from waste printed circuit boards (WPCBs).

Pictograms

Exclamation mark
GHS07

Signal Word

Warning

Hazard Statements

H315,H319

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

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
0000391747
0000391747
0000303860
0000303848
MKCV2578

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Environmentally friendly synthesis of copper nanoparticles from waste printed circuit boards
El-Nasr RS, et al.
Separation and Purification Technology, 230, 115860-115860 (2020)
F Renosto et al.
Journal of bacteriology, 164(2), 674-683 (1985-11-01)
ATP sulfurylases from Penicillium chrysogenum (a mesophile) and from Penicillium duponti (a thermophile) had a native molecular weight of about 440,000 and a subunit molecular weight of about 69,000. (The P. duponti subunit appeared to be a little smaller than
Microwave-assisted ultrafast and facile synthesis of fluorescent carbon nanoparticles from a single precursor: preparation, characterization and their application for the highly selective detection of explosive picric acid
S Xiangcheng, et al.
Journal of Material Chemistry A, 4(11), 4161-4171 (2016)
Clinio Locatelli
Analytical and bioanalytical chemistry, 381(5), 1073-1081 (2005-01-29)
Voltammetric methods are very suitable, versatile and rapid techniques for simultaneous determination of metals in complex matrices. The present work, determination of Cu(II), Sn(II), Sb(III), Tl(I), and Pb(II) by square-wave anodic-stripping voltammetry and Cr(VI) by square-wave adsorptive-stripping voltammetry, is an
Influence of surface charge on maximizing solids loading in colloidal processing of alumina.
Singh BP, et al.
Material Matters, 56(4), 475-480 (2002)
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