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| | 12-HYDROXYSTEARIC ACID Basic information |
| | 12-HYDROXYSTEARIC ACID Chemical Properties |
| 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) |
| | 12-HYDROXYSTEARIC ACID Usage And Synthesis |
| 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 |
- 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
| | 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. |
| | 12-HYDROXYSTEARIC ACID Preparation Products And Raw materials |
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