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Merck
CN

8.18707

Citric acid

anhydrous for synthesis

Synonym(s):

2-Hydroxypropane-1,2,3-tricarboxylic acid, Hydroxytricarballylic acid

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About This Item

Linear Formula:
HOC(COOH)(CH2COOH)2
CAS Number:
Molecular Weight:
192.12
UNSPSC Code:
12352106
NACRES:
NA.22
EC Index Number:
201-069-1
MDL number:
Beilstein/REAXYS Number:
782061
Assay:
≥99% (alkalimetric)
Form:
solid
Grade:
synthesis grade
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grade

synthesis grade

Quality Level

vapor pressure

<0.1 hPa ( 20 °C)

assay

≥99% (alkalimetric)

form

solid

potency

3000 mg/kg LD50, oral (Rat)

expl. lim.

8 %, 65 °F

pH

1.7 (20 °C, 100 g/L in H2O)

pKa 

(1) 3.13, (2) 4.76, (3) 6.4

bp

200 °C/1013 hPa (decomposition)

mp

153-159 °C (lit.)

solubility

1330 g/L

density

1.665 g/cm3 at 18 °C

bulk density

560 kg/m3

storage temp.

15-25°C

SMILES string

OC(=O)CC(O)(CC(O)=O)C(O)=O

InChI

1S/C6H8O7/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)

InChI key

KRKNYBCHXYNGOX-UHFFFAOYSA-N

Application

  • Citric acid′s role in nanotechnology: Research on the use of citric acid as a precursor in the synthesis of carbon dots, highlighting its role in the creation of fluorescent nanoparticles for advanced material applications (J Schneider et al., 2017).

Analysis Note

Assay (alkalimetric): ≥ 99 %
Identity (IR-spectrum): passes test


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pictograms

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Warning

Hazard Classifications

Eye Irrit. 2 - STOT SE 3

target_organs

Respiratory system

Storage Class

11 - Combustible Solids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

hcodes



Certificates of Analysis (COA)

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Global Trade Item Number

SKUGTIN
818707100004022536443232
818707500004022536443249