C7129

Citronensäure Monohydrat

reagent grade, ≥98% (GC/titration)

• Synonym(e): 2-hydroxy-1,2,3-propanetricarboxylic acid monohydrate
• Lineare Formel: HOC(COOH)(CH₂COOH)₂ · H₂O
• CAS-Nummer: 5949-29-1
• Molekulargewicht: 210.14
• Beilstein: 4018641
• EG-Nummer: 201-069-1
• MDL-Nummer: MFCD00149972
• UNSPSC-Code: 12352100
• PubChem Substanz-ID: 24892935
• NACRES: NA.21

Eigenschaften

• Qualität: reagent grade
• Assay: ≥98% (GC/titration)
• Form: powder
• pKa: (1) 3.13, (2) 4.76, (3) 6.4
• Löslichkeit: H₂O: 100 mg/mL, clear, colorless (Turbidity)
• 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
• InChIKey: YASYEJJMZJALEJ-UHFFFAOYSA-N

Beschreibung

Allgemeine Beschreibung

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 Δ_solH_m (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.

Anwendung

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.

Sicherheitshinweise

• Piktogramme: GHS07
• Signalwort: Warning
• H-Sätze: H319,H335
• P-Sätze: P261 - P264 - P271 - P280 - P304 + P340 + P312 - P305 + P351 + P338
• Gefahreneinstufungen: Eye Irrit. 2 - STOT SE 3
• Zielorgane: Respiratory system
• Lagerklassenschlüssel: 11 - Combustible Solids
• WGK: WGK 1
• Flammpunkt (°F): 345.0 °F - closed cup
• Flammpunkt (°C): 173.9 °C - closed cup
• Persönliche Schutzausrüstung: dust mask type N95 (US), Eyeshields, Gloves