12-HYDROXYSTEARIC ACID

Synonym(s):12-HSA;12-Hydroxyoctadecanoic acid;12-Hydroxystearic acid

CAS NO.：106-14-9
Empirical Formula: C18H36O3
Molecular Weight: 300.48
MDL number: MFCD00004592
EINECS: 203-366-1
SAFETY DATA SHEET (SDS)
Update Date: 2024-08-21 22:41:43

What is 12-HYDROXYSTEARIC ACID?

Description

12-Hydroxy stearic acid (12-HSA) is a saturated hydroxy fatty acid. It's a waxy, odourless, tasteless and cream coloured compound in flakes / powder.
appearance creamish flakes or powder
melting point °C min. 70
colour Gardner max. 6
colour (on 1” Lovibond) max 20 yellow / max. 4,5 red
acid value mg KOH/g min. 175
iodine value (Wijs) g I2/100g max. 5
hydroxyl value min. 150
saponification value mg KOH/g 175 - 190

Chemical properties

white powder

The Uses of 12-HYDROXYSTEARIC ACID

12-Hydroxystearic acid is used in cosmetics, wax blends, heavy duty greases, polishes, inks and hot melt adhesives, as a lubricant for natural and synthetic rubbers and as a source for industrial oleo chemicals. It is also used as an intermediate in pharmaceuticals.

The Uses of 12-HYDROXYSTEARIC ACID

Lithium greases, chemical intermediates.

The Uses of 12-HYDROXYSTEARIC ACID

lubrication: 12-Hydroxy stearic acid (12-HSA) gives better Lithium, Barium and Calcium multi-purpose greases. It provides excellent resistance to water, oils, solvents and crude petroleum, wide temperature range stability and high drop point.
cosmetics: 12-HSA is used for gelling liquid Paraffin in creams and ointments, which easily liquefy on the skin. Esters of 12-HSA are used in various cosmetic products (lipsticks, deodorant and antiperspirant sticks, shaving creams, etc.).
coatings: 12-HSA is reacted with acrylic esters to produce hard, durable thermosetting polymers used in the high quality automotive, industrial appliance and metal decorative finishes.
rubber: functions as an activator and internal lubricant for natural and synthetic rubbers
others: 12-HSA is an useful component in polishes, inks and hot melt adhesives

What are the applications of Application

12-Hydroxyoctadecanoic acid is a lipid used in organogels

Definition

ChEBI: A hydroxy fatty acid that is stearic acid bearing a hydroxy substituent at position 12.

General Description

Non-isothermal nucleation rate of a self-assembling fibrillar network of 12-hydroxyoctadecanoic acid (12-hydroxystearic acid) in canola oil has been reported. It is commonly used as gelling agent for organic solvents. Self-assembled monolayers of 12-hydroxyoctadecanoic acid and its 4,4′-bipyridinium salt have been observed on the solution graphite interface using scanning tunnelling microscopy.

Properties of 12-HYDROXYSTEARIC ACID

Melting point:	74-76 °C (lit.)
Boiling point:	180 °C
Density	1.0238 (rough estimate)
vapor pressure	0Pa at 20℃
refractive index	1.4200 (estimate)
storage temp.	−20°C
solubility	Chloroform (Slightly, Heated), Ethyl Acetate (Slightly, Heated), Methanol (Very
pka	4.78±0.10(Predicted)
form	Crystalline
color	White
Water Solubility	Soluble in ether, alcohol and chloroform. Insoluble in water.
BRN	1726730
CAS DataBase Reference	106-14-9(CAS DataBase Reference)
EPA Substance Registry System	Octadecanoic acid, 12-hydroxy- (106-14-9)