12-HYDROXYSTEARIC ACID Property

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

pka

4.78±0.10(Predicted)

form 

Crystalline

color 

White

Water Solubility 

Soluble in ether, alcohol and chloroform. Insoluble in water.

BRN 

1726730

LogP

5.7

CAS DataBase Reference

106-14-9(CAS DataBase Reference)

EPA Substance Registry System

Octadecanoic acid, 12-hydroxy- (106-14-9)

Safety

Hazard Codes 

Xi

Risk Statements 

36/37/38

Safety Statements 

26-36

WGK Germany 

3

RTECS 

WI3850000

TSCA 

Yes

HS Code 

29181990

Hazardous Substances Data

106-14-9(Hazardous Substances Data)

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P302+P352IF ON SKIN: wash with plenty of soap and water.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

P321Specific treatment (see … on this label).

P332+P313IF SKIN irritation occurs: Get medical advice/attention.

P362Take off contaminated clothing and wash before reuse.

12-HYDROXYSTEARIC ACID Chemical Properties,Usage,Production

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

Uses

Lithium greases, chemical intermediates.

Uses

1. 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.
2. 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.).
3. 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.
4. rubber: functions as an activator and internal lubricant for natural and synthetic rubbers
5. others: 12-HSA is an useful component in polishes, inks and hot melt adhesives

Uses

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.

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.