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C7129

Citric acid monohydrate

reagent grade, ≥98% (GC/titration), powder

Synonym(s):

2-hydroxy-1,2,3-propanetricarboxylic acid monohydrate

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About This Item

Linear Formula:
HOC(COOH)(CH2COOH)2 · H2O
CAS Number:
5949-29-1
Molecular Weight:
210.14
NACRES:
NA.21
PubChem Substance ID:
24892935
UNSPSC Code:
12352100
EC Number:
201-069-1
MDL number:
MFCD00149972
Beilstein/REAXYS Number:
4018641
Assay:
≥98% (GC/titration)
Form:
powder
Grade:
reagent grade
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Product Name

Citric acid monohydrate, reagent grade, ≥98% (GC/titration)

grade

reagent grade

Quality Segment

assay

≥98% (GC/titration)

form

powder

pKa 

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

solubility

H2O: 100 mg/mL, clear, colorless (Turbidity)

functional group

carboxylic acid

SMILES string

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

InChI

1S/C6H8O7.H2O/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);1H2

InChI key

YASYEJJMZJALEJ-UHFFFAOYSA-N

General description

Citric acid monohydrate(CAM) is an organic acid. It can be produced by crystallization from mother liquor of citric acid solution at 20-25°C during citric acid synthesis. Its molar enthalpy of solution in water has been reported to be ΔsolHm (298.15K, m = 0.0203molkg-1) = (29061±123)Jmol-1. An investigation of its crystal growth kinetics indicates that growth is linearly dependent on size.

Application

Citric acid monohydrate may be used:
  • To prepare citric acid solution employed in the acetone method of 68Ga pre-purification and radiolabeling technique.
  • To prepare Tris-citrate buffer employed for the electrophoresis of bacterial enzymes.
  • To improve the release of diltiazem hydrochloride from melt extruded matrix tablets.

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Pictograms

Exclamation mark
GHS07

Signal Word

Warning

Hazard Codes

H319,H335

Hazard Classifications

Eye Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

Storage Class

11 - Combustible Solids

Flash Point (°F)

345.0 °F - closed cup

Flash Point (°C)

173.9 °C - closed cup

PPE (personal protective equipment)

dust mask type N95 (US), Eyeshields, Gloves

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