791725

Citric acid

anhydrous, free-flowing, Redi-Dri^™, ACS reagent, ≥99.5%

• Sinónimos: 2-Hydroxy-propane-1,2,3-tricarboxylic acid
• Fórmula lineal: HOC(COOH)(CH₂COOH)₂
• Número de CAS: 77-92-9
• Peso molecular: 192.12
• Beilstein: 782061
• Número de EC: 201-069-1
• Número MDL: MFCD00011669
• ID de la sustancia en PubChem: 329768287
• NACRES: NA.21

Propiedades

• Nivel de calidad: 200
• grado: ACS reagent; anhydrous
• línea de producto: Redi-Dri^™
• ensayo: ≥99.5%
• formulario: crystals
• calidad: free-flowing
• lim. expl.: 8 %, 65 °F
• impurezas: Substances carbonizable by hot sulfuric acid, passes test
• residuo de ign.: ≤0.02%
• pKa: (1) 3.13, (2) 4.76, (3) 6.4
• mp: 153-159 °C (lit.)
• trazas de anión: chloride (Cl^-): ≤0.001%; oxalate (C₂O₄^2-): passes test (limit about 0.003%); phosphate (PO₄^3-): ≤0.001%; sulfate (SO₄^2-): ≤0.002%
• trazas de catión: Fe: ≤3 ppm; Pb: ≤2 ppm
• 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

Descripción

Descripción general

Citric acid also called 2-hydroxy-propane-1,2,3-tricarboxylic acid, is a component of the tricarboxylic acid cycle in all organisms. Industrial production of citric acid use fungal, yeast and citrus fruit as the major source. Aspergillus niger is majorly used for citric acid production by fermentation Manganese inhibits fermentative production of citric acid Oral supplementation of citric acid promotes tricarboxylic acid cycle and oxidative phosphorylation in mitochondria, attenuating physical fatigue.

Aplicación

Citric acidhas been used as a component of citrate buffer and Fe-free sauton′s medium. It has been used in hybridization chain reaction buffer for preequilibration of coverslips for testes sections.

Envase

1 kg in poly bottle

2.5, 12 kg in poly drum

100, 500 g in poly bottle

Información legal

Redi-Dri^™ is a trademark of Sigma-Aldrich Co. LLC

Redi-Dri is a trademark of Sigma-Aldrich Co. LLC

Información de seguridad

• pictogramas: GHS07
• Palabra de señalización: Warning
• Frases de peligro: H319 - H335
• Consejos de prudencia: P261 - P264 - P271 - P280 - P304 + P340 + P312 - P305 + P351 + P338
• Clasificaciones de peligro: Eye Irrit. 2 - STOT SE 3
• Órganos de actuación: Respiratory system
• Código de clase de almacenamiento: 11 - Combustible Solids
• WGK: WGK 1
• Punto de inflamabilidad F: Not applicable
• Punto de inflamabilidad C: Not applicable