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27734

Sigma-Aldrich

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:
Molecular Weight:
256.42
Beilstein:
607489
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.21

vapor pressure

10 mmHg ( 210 °C)

Quality Level

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.)

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

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Palmitic acid ≥98% palmitic acid basis (GC)

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Palmitic acid United States Pharmacopeia (USP) Reference Standard

USP

1492007

Palmitic acid

vapor pressure

10 mmHg ( 210 °C)

vapor pressure

10 mmHg ( 210 °C)

vapor pressure

10 mmHg ( 210 °C)

vapor pressure

10 mmHg ( 210 °C)

assay

≥98% palmitic acid basis (GC)

assay

≥99%

assay

-

assay

-

form

flakes, powder or crystals

form

powder

form

-

form

-

impurities

≤1% stearic acid (GC)

impurities

≤0.0005% Phosphorus (P), ≤0.1% Insoluble matter

impurities

-

impurities

-

bp

271.5 °C/100 mmHg (lit.)

bp

271.5 °C/100 mmHg (lit.)

bp

271.5 °C/100 mmHg (lit.)

bp

271.5 °C/100 mmHg (lit.)

mp

61-62.5 °C (lit.), 62-65 °C

mp

61-62.5 °C (lit.)

mp

61-62.5 °C (lit.)

mp

61-62.5 °C (lit.)

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.

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

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