27109

Acide citrique

meets analytical specification of Ph. Eur., BP, USP, E330, anhydrous, 99.5-100.5% (based on anhydrous substance)

• Formule linéaire : HOC(COOH)(CH₂COOH)₂
• CAS Number: 77-92-9
• Poids moléculaire : 192.12
• Beilstein: 782061
• Numéro CE : 201-069-1
• Numéro MDL: MFCD00011669
• Code UNSPSC : 12352106
• eCl@ss : 39021801
• ID de substance PubChem : 329752978
• Nomenclature NACRES : NA.21

Propriétés

• Niveau de qualité: 200
• Essai: 99.5-100.5% (based on anhydrous substance)
• Forme: grit
• Qualité: anhydrous; meets analytical specification of Ph. Eur., BP, USP, E330
• Limite d'explosivité: 8 %, 65 °F
• Impuretés: residual solvents, complies; ≤0.0005% heavy metals (as Pb); ≤0.5% water (Karl Fischer)
• Résidus de calcination: ≤0.05% (as SO₄)
• pKa: (1) 3.13, (2) 4.76, (3) 6.4
• Pf: 153-159 °C (lit.)
• Solubilité: water: 383 g/L at 25 °C
• Traces d'anions: chloride (Cl^-): ≤50 ppm; oxalate (as oxalic acid): ≤100 ppm; sulfate (SO₄^2-): ≤100 ppm
• Traces de cations: As: ≤1 ppm; Ca: ≤200 ppm; Cu: ≤10 ppm; Fe: ≤10 ppm; Hg: ≤1 ppm; Pb: ≤0.5 ppm; Zn: ≤10 ppm
• Adéquation: complies for appearance of solution; complies for reaction against H₂SO₄
• Chaîne SMILES: 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)
• Clé InChI: KRKNYBCHXYNGOX-UHFFFAOYSA-N
• Informations sur le gène: human ... SRC(6714)

Description

Application

Citric acid was used as a test reagent for studying whether the novel pyridazinylpiperazine analog TPRV-1 inhibitor can reduce cough reflex induced by citric acid and capsaicin in guinea pig.

Actions biochimiques/physiologiques

Citric acid in dietary form can augments absorption of aluminium in antacids. It also facilitates the phytoremediation of heavy metal contaminated soil and can transform cadmium into more transportable forms.

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