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Ammonium citrate dibasic

Name: Ammonium citrate dibasic
Brand: SIAL

puriss., ≥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

UNSPSC Code:

12352100

NACRES:

NA.22

PubChem Substance ID:

329752776

EC Number:

221-146-3

Beilstein/REAXYS Number:

4925760

MDL number:

MFCD00013068

Assay:

≥98%

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Properties

vapor density

1.8 (vs air)

Quality Segment

200

grade

puriss.

assay

≥98%

impurities

≤0.001% heavy metals (as Pb)

pH

4.5-5.5 (20 °C, 5%)

anion traces

chloride (Cl^-): ≤50 mg/kg, sulfate (SO₄^2-): ≤300 mg/kg

cation traces

Fe: ≤10 mg/kg

functional group

carboxylic acid, hydroxyl

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

Description

Application

Ammonium citrate dibasic is generally used as a component of matrix solution in matrix-assisted laser desorption/ionization time-of-flight (MALDI-TOF) mass spectrometry analysis.[1] It can also be used as both the carbon and nitrogen source to synthesize fluorescent nitrogen-doped carbon nanoparticles (CNPs).

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This Item	09833	1.01154	247561
Sigma-Aldrich 25102 Ammonium citrate dibasic	Sigma-Aldrich 09833 Ammonium citrate dibasic	Supelco 1.01154 di-Ammonium hydrogen citrate	Sigma-Aldrich 247561 Ammonium citrate dibasic
assay ≥98%	assay ≥99.0% (T)	assay 99.0-102.0% (alkalimetric)	assay 98%, 98.0-103.0% (ACS specification)
Quality Level 200	Quality Level 200	Quality Level 300	Quality Level 200
vapor density 1.8 (vs air)	vapor density 1.8 (vs air)	vapor density -	vapor density 1.8 (vs air)
pH 4.5-5.5 (20 °C, 5%)	pH 4.0-5.5 (25 °C, 1 M in H₂O)	pH 3.3-5.3 (23 g/L in H₂O)	pH 5.2 (20 °C, 50 g/L)
impurities ≤0.001% heavy metals (as Pb)	impurities insoluble matter, passes filter test	impurities ≤0.005% Insoluble matter	impurities oxalate, passes test (lim ~0.05%), ≤0.005% insolubles
cation traces Fe: ≤10 mg/kg	cation traces Al: ≤5 mg/kg, As: ≤0.1 mg/kg, Ba: ≤5 mg/kg, Bi: ≤5 mg/kg, Ca: ≤10 mg/kg, Cd: ≤5 mg/kg, Co: ≤5 mg/kg, Cr: ≤5 mg/kg, Cu: ≤5 mg/kg, Fe: ≤5 mg/kg, K: ≤50 mg/kg, Li: ≤5 mg/kg, Mg: ≤5 mg/kg, Mn: ≤5 mg/kg, Mo: ≤5 mg/kg, Na: ≤50 mg/kg, Ni: ≤5 mg/kg, Pb: ≤5 mg/kg, Sr: ≤5 mg/kg, Zn: ≤5 mg/kg	cation traces Fe: ≤0.0005%, (heavy metals (ACS) ≤ 0.0005%)	cation traces Fe: ≤0.001%, heavy metals: ≤5 ppm (by ICP)

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pictograms

GHS07

signalword

Warning

hcodes

H315,H319

pcodes

P264 - P280 - P302 + P352 - P305 + P351 + P338 - P332 + P313 - P337 + P313

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2

Storage Class

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Gloves

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