Shandong Huashang Chemical Co., Ltd. is a high-tech enterprise focused on industry of fine chemicals research and develop, produce and sale. Shandong Huashang Chemical Co., Ltd. is located in Shan Dong Ji Nan China. we have the ability to provide you high quality products. More than 90 % of our products are exported to developed countries and regions such as north America, Europe, Japan, South Korea and the Middle East.
12-Hydroxystearic acid
1. Basic Information
Name: 12-Hydroxystearic acid
Alias: 12-Hydroxyoctadecanoic acid
CAS No.: 106-14-9
Molecular Formula: C??H??O?
Molecular Weight: 300.48
Category: Hydroxy fatty acid raw material, lithium grease thickener, wax modifier, cosmetic thickener, paint coating anti-settling agent
2. Physical and Chemical Properties
Physical Properties
- Appearance: White or off-white waxy flake / granular solid
- Odor: Faint mild fatty acid odor
- Solubility: Soluble in hot ethanol, toluene, xylene, mineral oil, ester solvents; slightly soluble in cold organic solvents; almost insoluble in water
- Melting Point: 70–76 ℃
- Density (20℃ solid): 0.98 g/cm3
- Hygroscopy: Non-hygroscopic under normal humidity
- Aqueous property: Insoluble in water, weak acidity when dissolved in alcohol; stable neutral water environment
Chemical Properties
- Molecular structure: Long saturated alkyl chain with carboxyl group at terminal and hydroxyl group at C12 carbon, dual functional groups of -COOH and -OH
- Saponification & Salt formation: Reacts with lithium hydroxide to produce lithium 12-hydroxystearate, core thickener for high-temperature lithium grease
- Esterification: Hydroxyl and carboxyl groups can undergo esterification with alcohols to synthesize synthetic wax, lubricant esters
- Self-crosslinking: Under heating and catalyst conditions, intermolecular esterification occurs to form polyester wax with high hardness
- Thermal stability: Stable below 150 ℃; above 200 ℃ dehydration occurs to generate unsaturated stearic acid
- Photostability: Good light resistance, no discoloration under long-term light exposure
- Compatibility: Compatible with mineral oils, synthetic esters, waxes, resin coatings; incompatible with strong alkali under high temperature (easy saponification)
3. Main Application Fields
1. High Temperature Lithium Grease Thickener (Core Application)
Synthetic lithium soap thickener raw material; lithium grease made from it features high dropping point, anti-oxidation, water resistance, wide temperature range lubrication
2. Synthetic Wax & Plastic Modifier
Raw material for high-melting-point synthetic ester wax; used for plastic lubricant, anti-blocking agent, pigment dispersant
3. Cosmetic Raw Material
Thickening, gelling agent for lip gloss, cream, ointment; improves texture and stability of oil-based cosmetics
4. Coatings & Inks
Anti-settling agent, anti-sagging auxiliary for solvent-based paint, offset ink; improves pigment suspension performance
5. Metal Processing Lubricant
Additive for drawing oil, cutting oil, provides extreme pressure lubrication and anti-rust performance
4. Quality Specification Table
| Test Item | Standard Specification |
| CAS Number | 106-14-9 |
| Molecular Formula | C??H??O? |
| Appearance | Uniform white waxy flakes without yellow discoloration |
| Acid Value | 178–188 mgKOH/g |
| Hydroxyl Value | 150–160 mgKOH/g |
| Melting Point | 70–76 ℃ |
| Water Content (KF) | ≤0.10% |
| Iodine Value | ≤5 gI?/100g |
| Heavy Metals (Pb) | ≤10 ppm |
| Packaging | 25kg PE lined woven bag / cardboard drum |
| Storage Condition | Hermetically sealed cool dry warehouse below 25 ℃, isolate strong alkali and high temperature heat sources |
| Transportation Requirement | Waxy solid fatty acid, conventional general chemical packaging |
| Shelf Life | 24 months under sealed storage |
Safety Warning
Mild low-irritation fatty acid solid. Dust slightly irritates eyes and respiratory tract; molten high-temperature liquid may cause mild skin burns. All operations in ventilated workshop with dust mask and nitrile gloves; avoid high-temperature molten splashing. Waste can be recycled by esterification recovery; residual waste belongs to general organic fatty chemical waste.
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