Product Name
Palmitic Acid
Category
Pressure & Heat Sensitive Recording Materials; Solubility Enhancing Reagents; Heat & Pressure Sensitive Dyes
Synonyms
Pentadecanecarboxylicacid
Description
Emulsifying fatty acid derived from palm oil. Saponification value 218-222. HLB 11-12 (gives oil-in-water emulsions).
IUPAC Name
Hexadecanoic acid
Molecular Formula
C16H32O2
Canonical SMILES
CCCCCCCCCCCCCCCC(=O)O
InChI
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
Melting Point
61-62.5 °C(lit.)
Density
0.852 g/mL at 25 °C(lit.)
Solubility
Soluble in hot alcohol, ether
Application
Creams, cream rinses, shampoos and conditioners, soaps, and many other basic cosmetic preparations.
Color/Form
White crystalline scales;White crystalline needles;Needles from alcohol;Hard, white, or faintly yellowish, somewhat glossy crystalline solid, or as a white yellowish powder
Covalently-Bonded Unit Count
1
EC Number
200-312-9;266-926-4
Features And Benefits
Acts as viscosity builder, emollient and co-emulsifier Acts also as superfatting agent and opacifier Widely used to improve emollience and thickness of emulsions
Heat of Vaporization
96.28 kJ/mole at 200 °C
MeSH Entry Terms
Acid, Hexadecanoic;Acid, Palmitic;Calcium Palmitate;Hexadecanoic Acid;Palmitate, Calcium;Palmitate, Sodium;Palmitic Acid;Sodium Palmitate
Monoisotopic Mass
256.240230259
Odor
Virtually odorless; slight characteristic odor
Other Experimental
Saturated fatty acid;Density: 0.8527 g/cu cm at 62 °C;Hydroxyl radical reaction rate constant = 2.0X10-11 cu cm/molec-sec at 25 °C (est)
Stability
Stable. Combustible. Incompatible with bases, oxidizing agents, reducing agents.
Storage Conditions
Room Temperature
Topological Polar Surface Area
37.3 Ų
Vapor Pressure
10 mm Hg ( 210 °C)
Viscosity
7.80 mPa.sec (cP) at 70 °C