27734

Palmitic acid

≥98% palmitic acid basis (GC)

• Synonym(s): 1-Pentadecanecarboxylic acid, C16:0, Cetylic acid, Hexadecanoic acid, NSC 5030, PamOH
• Linear Formula: CH₃(CH₂)₁₄COOH
• CAS Number: 57-10-3
• Molecular Weight: 256.42
• Beilstein: 607489
• EC Number: 200-312-9
• MDL number: MFCD00002747
• UNSPSC Code: 12352100
• PubChem Substance ID: 57648272
• NACRES: NA.21

Properties

• vapor pressure: 10 mmHg ( 210 °C)
• Assay: ≥98% palmitic acid basis (GC)
• form: flakes; powder or crystals
• technique(s): gas chromatography (GC): suitable; thin layer chromatography (TLC): suitable
• impurities: ≤1% stearic acid (GC)
• bp: 271.5 °C/100 mmHg (lit.)
• mp: 61-62.5 °C (lit.); 62-65 °C
• acid value: ≤240
• iodine value: ≤0.5
• saponification value: ≤240
• density: 0.852 g/mL at 25 °C (lit.)
• functional group: carboxylic acid
• SMILES string: CCCCCCCCCCCCCCCC(O)=O
• InChI: 1S/C16H32O2/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16(17)18/h2-15H2,1H3,(H,17,18)
• InChI key: IPCSVZSSVZVIGE-UHFFFAOYSA-N
• Gene Information: human ... FABP2(2169) , FABP3(2170) , FABP4(2167) , FABP5(2171)

Description

General description

Palmiticacid (C16:0) is a saturated fatty acid commonly found in various naturalsources, such as animal fats and plant oils.

Application

Palmitic acid may be employed in the preparation of palmitic anhydride, via reaction with dicyclohexylcarbodiimide (DCC) in carbon tetrachloride. It undergoes deoxygenation in the presence of 4%wt Pd/C mesoporous catalyst at 300°C and pressure of 17bar of 5% H₂ in argon. Aliphatic chain length hydrocarbons containing one less carbon than the corresponding acid were obtained as major products.

Safety Information

• Storage Class Code: 11 - Combustible Solids
• WGK: nwg
• Flash Point(F): 235.4 °F
• Flash Point(C): 113 °C
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves