Citric acid

• Catalog No.: 27109
• CAS Number: 77-92-9
• M. F.: C6H8O7
• M. W.: 192.12352
• Purity: 99.5-100.5% (based on anhydrous substance)

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: 24856191
• CAS Number: 77-92-9
• EC Number: 201-069-1

PROPERTIES

• Antion Traces: chloride (Cl-): ≤50 mg/kg
• Antion Traces: oxalate (as oxalic acid): ≤100 mg/kg
• Antion Traces: sulfate (SO42-): ≤100 mg/kg
• Cation Traces: Al: ≤0.2 mg/kg
• Cation Traces: As: ≤1 mg/kg
• Cation Traces: Ca: ≤200 mg/kg
• Cation Traces: Cu: ≤10 mg/kg
• Cation Traces: Fe: ≤10 mg/kg
• Cation Traces: Hg: ≤1 mg/kg
• Cation Traces: Pb: ≤1 mg/kg
• Cation Traces: Zn: ≤10 mg/kg
• Ignition Residue: ≤0.05% (as SO4)
• Impurities: organic volatile impurities, complies (GC)
• Impurities: residual solvents, complies
• Impurities: ≤0.0005% heavy metals (as Pb)
• Impurities: ≤0.5% water (Karl Fischer)
• Linear Formula: HOC(COOH)(CH2COOH)2
• Purity: 99.5-100.5% (based on anhydrous substance)
• Quality: anhydrous
• Quality: meets analytical specification of Ph. Eur., BP, USP, E330
• Suitability: complies for appearance of solution
• Suitability: complies for reaction against H2SO4
• Gene Information: human ... SRC(6714)
• pKa: (1) 3.13, (2) 4.76, (3) 6.4
• Apperance: grit
• 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