Citric acid

• Catalog No.: 27488
• CAS Number: 77-92-9
• M. F.: C6H8O7
• M. W.: 192.12352
• Purity: ≥99.5% (T)

SYNONYMS

• Title: 柠檬酸
• IUPAC name: 2-hydroxypropane-1,2,3-tricarboxylic acid
• IUPAC Traditional name: citro

DATABASE IDS

• Beilstein Number: 782061
• MDL Number: MFCD00011669
• PubChem SID: 24856613
• CAS Number: 77-92-9
• EC Number: 201-069-1

PROPERTIES

• Antion Traces: chloride (Cl-): ≤5 mg/kg
• Antion Traces: oxalate (C2O42-): ≤500 mg/kg
• Antion Traces: phosphate (PO43-): ≤5 mg/kg
• Antion Traces: sulfate (SO42-): ≤20 mg/kg
• Cation Traces: Ca: ≤10 mg/kg
• Cation Traces: Cd: ≤5 mg/kg
• Cation Traces: Co: ≤5 mg/kg
• Cation Traces: Cr: ≤5 mg/kg
• Cation Traces: Cu: ≤5 mg/kg
• Cation Traces: Fe: ≤3 mg/kg
• Cation Traces: K: ≤50 mg/kg
• Cation Traces: Mg: ≤5 mg/kg
• Cation Traces: Mn: ≤5 mg/kg
• Cation Traces: Na: ≤50 mg/kg
• Cation Traces: Ni: ≤5 mg/kg
• Cation Traces: Pb: ≤2 mg/kg
• Cation Traces: Zn: ≤5 mg/kg
• Grade: ACS reagent
• Grade: puriss. p.a.
• Ignition Residue: ≤0.02% (as SO4)
• Linear Formula: HOC(COOH)(CH2COOH)2
• Loss on Drying: ≤0.5% loss on drying, 110 °C
• Purity: ≥99.5% (T)
• Gene Information: human ... SRC(6714)
• pKa: (1) 3.13, (2) 4.76, (3) 6.4
• Melting Point: 153-159 °C(lit.)
• Explode Limits: 8 %, 65 °F
• GHS Signal Word: Warning
• GHS Hazard statements: H319
• European Hazard Symbols: Irritant (Xi)
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves
• GHS Precautionary statements: P305 + P351 + P338
• Risk Statements: 36
• RTECS: GE7350000
• Safety Statements: 26
• German water hazard class: 1