27487

Acide citrique

BioUltra, anhydrous, ≥99.5% (T)

• Formule linéaire : HOC(COOH)(CH₂COOH)₂
• Numéro CAS: 77-92-9
• Poids moléculaire : 192.12
• Numéro Beilstein : 782061
• Numéro CE : 201-069-1
• Numéro MDL: MFCD00011669
• Code UNSPSC : 12161700
• eCl@ss : 39021801
• ID de substance PubChem : 57648248
• Nomenclature NACRES : NA.25

Propriétés

• Gamme de produits: BioUltra
• Pureté: ≥99.5% (T)
• Forme: powder or crystals
• Limite d'explosivité: 8 %, 65 °F
• Technique(s): cell culture | hybridoma: suitable
• Impuretés: insoluble matter, passes filter test
• Résidus de calcination: ≤0.05% (as SO₄)
• Perte: ≤0.5% loss on drying, 110 °C
• pH: 1.0-2.0 (25 °C, 1 M in H₂O)
• pKa: (1) 3.13, (2) 4.76, (3) 6.4
• Pf: 153-159 °C (lit.)
• Solubilité: H₂O: 1 M at 20 °C, clear, colorless
• Traces d'anions: chloride (Cl^-): ≤5 mg/kg; oxalate (C₂O₄^2-): ≤0.05%; phosphate (PO₄^3-): ≤5 mg/kg; sulfate (SO₄^2-): ≤20 mg/kg; tartrate (C₄H₄O₆^2-): ≤0.20%
• Traces de cations: 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
• λmax: 260 nm (Amax: ≤0.20); 280 nm (Amax: ≤0.10)
• Chaîne SMILES: OC(=O)CC(O)(CC(O)=O)C(O)=O
• λ: 1 M in H₂O
• Absorption UV: λ: 260 nm A_max: 0.20; λ: 280 nm A_max: 0.10
• 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)
• Clé InChI: KRKNYBCHXYNGOX-UHFFFAOYSA-N
• Informations sur le gène: human ... SRC(6714)

Description

Description générale

Citric acid is a buffer component for triple-column amino acid analysis. It is an optimal buffer for dissociation of radioiodinated antibodies from viable murine tumor cells.

Application

• Enhancing soil microbiomes: Citric acid has been applied to modify soil bacterial communities in saline mudflats, demonstrating its utility in environmental biotechnology for sustainable ecosystem management (Liu et al., 2024).


• Biodegradable packaging in food industry: In food chemistry, citric acid is used in conjunction with polyvinyl alcohol for developing antimicrobial packaging, highlighting its potential in food safety and preservation (Xu et al., 2024).


• Nanomaterial synthesis for engineering applications: Citric acid serves as a key component in the eco-friendly synthesis of hybrid nanomaterials for supercapacitors, underpinning its role in advancing materials science and engineering (Teixeira et al., 2024).


• Environmental science and pollution control: Research utilizes citric acid to study the co-transport of pharmaceuticals and nanoparticles in environmental systems, aiding in the understanding of contaminant dynamics and mitigation strategies (Cui et al., 2024).


• Food science and technology: Citric acid is employed in the formulation of vegan gummies, indicating its versatility in food product development and its impact on textural properties (Rawat et al., 2024).

Informations sur la sécurité

• Pictogrammes: GHS07
• Mention d'avertissement: Warning
• Mentions de danger: H319,H335
• Conseils de prudence: P261 - P264 - P271 - P280 - P304 + P340 + P312 - P305 + P351 + P338
• Classification des risques: Eye Irrit. 2 - STOT SE 3
• Organes cibles: Respiratory system
• Code de la classe de stockage: 11 - Combustible Solids
• Classe de danger pour l'eau (WGK): WGK 1
• Point d'éclair (°F): Not applicable
• Point d'éclair (°C): Not applicable
• Équipement de protection individuelle: dust mask type N95 (US), Eyeshields, Gloves