Arachidic acid

Synonym(s):Arachic acid;Arachidinic acid;Eicosanoic acid;Icosanoic acid;NSC 93983

CAS NO.：506-30-9
Empirical Formula: C20H40O2
Molecular Weight: 312.53
MDL number: MFCD00002755
EINECS: 208-031-3
SAFETY DATA SHEET (SDS)
Update Date: 2024-11-19 23:02:33

What is Arachidic acid?

Chemical properties

Arachidic acid is also known as eicosanoic acid or Icosanoic acid, formula CH3(CH2)18COOH. A widely distributed, but minor, component of the fats of certain edible vegetable oils. Shining, white crystalline leaflets; soluble in ether, slightly soluble in water. Decomposes at 328 C. Commercial product derived from groundnut (peanut) oil. Used in organic synthesis, lubricating greases, waxes, and plastics. Source of arachidyl alcohol.

Occurrence

Arachidic acid is a saturated long-chain fatty acid and a minor constituent of peanut oil, coconut oil and corn oil.

The Uses of Arachidic acid

Arachidic acid is a saturated fatty acid and a minor constituent of peanut oil, coconut oil and corn oil. Arachidic acid is used for the production of detergents, photographic materials and lubricants .

The Uses of Arachidic acid

Arachidic acid is used in the manufacture of pharmaceuticals, soaps, cosmetics, and food packaging because of its surfactant-like properties. Arachidic acid was also used for the dispersion of the monolayer. By addition of an appropriate amount of arachidic acid to a solution of [Eu(tta)3(phen)] in chloroform, stable monolayers consisting of [Eu(tta)3(phen)] and arachidic acid were obtained, and the [Eu(tta)3(phen)] were found to be dispersed homogeneously in the monolayer.

What are the applications of Application

Arachidic Acid is a saturated fatty acid

Definition

ChEBI: Icosanoic acid is a C20 striaght-chain saturated fatty acid which forms a minor constituent of peanut (L. arachis) and corn oils. Used as an organic thin film in the production of liquid crystals for a wide variety of technical applications. It has a role as a plant metabolite. It is a straight-chain saturated fatty acid and a long-chain fatty acid. It is a conjugate acid of an icosanoate.

Preparation

Eicosanoic acid is produced by catalytic hydrogenation of arachidonic acid. Arachidonic acid is obtained from food or by desaturation and chain elongation of the plant-rich essential fatty acid, linoleic acid.

Reactions

It has the properties of fatty acids, can react with NaHCO3 to form salts, and with alcohols to form esters and so on.

Flammability and Explosibility

Non flammable

Biochem/physiol Actions

Arachidic acid is a saturated fatty acid with a 20 carbon chain. Arachidic acid occurs naturally in fish and vegetable oils. Diets rich in saturated fats like arachidic acid are associated with increased levels of serum low density lipoproteins.

Purification Methods

Crystallise the C20 acid pKEst ~ from absolute EtOH. [Beilstein 2 IV 1276.]

Properties of Arachidic acid

Melting point:	74-76 °C(lit.)
Boiling point:	328 °C
Density	d4100 0.8240
vapor pressure	0Pa at 25℃
refractive index	nD100 1.4250
Flash point:	110 °C
storage temp.	-20°C
solubility	chloroform: 50 mg/mL, clear, colorless
form	Glistening Powder or Flakes
pka	4.78±0.10(Predicted)
color	White
Water Solubility	practically insoluble
Merck	14,764
BRN	1788211
CAS DataBase Reference	506-30-9(CAS DataBase Reference)
NIST Chemistry Reference	Eicosanoic acid(506-30-9)
EPA Substance Registry System	Eicosanoic acid (506-30-9)

Safety information for Arachidic acid

Signal word	Warning
Pictogram(s)	Exclamation Mark Irritant GHS07
GHS Hazard Statements	H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation
Precautionary Statement Codes	P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P304+P340:IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. P405:Store locked up.