Overview
Arachidic acid (CAS 506-30-9 ), also known as eicosanoic acid, is a saturated C20 fatty acid derived primarily from peanut oil, fish oil, and other natural fats. It functions as a stabilizer, emulsifier, and surface-active agent across food, cosmetic, and industrial formulations.
In personal care, this fatty acid is used to adjust the texture and consistency of creams, lotions, and lip products, contributing to a smooth, stable emulsion structure. Food manufacturers incorporate it as a stabilizer and antioxidant component in fat-based systems.
In these systems, oxidative stability and shelf life are procurement priorities. In lubricant and metalworking formulations, it acts as a boundary lubricant and surface modifier, improving film adhesion on metal substrates for industrial processes.
Surfactant producers also use it as a fatty acid feedstock for the synthesis of soaps, esters, and amide-based emulsifiers. This versatile chemical intermediate is essential for creating high-performance surfactants used in various cleaning and processing agents.
Arachidic acid is supplied as a white to off-white powder or flake solid. It is available in technical grade for industrial applications and in higher-purity grades suitable for cosmetic and food-contact formulations to meet specific safety requirements.
Standard specifications align with GC purity requirements, with typical commercial offerings ranging from 90% to 99%+ purity depending on end-use requirements. Our supply chain ensures consistent quality for large-scale manufacturing and specialized laboratory applications.
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Physical Properties
| Melting Point | 75.4 °C |
| Boiling Point | 328.0 °C |
| Density | 0.8613 g/cm³ (liquid) @ Temp: 15 °C |
| Flash Point | 110 °C |
| Appearance | white glistening powder or flakes |
| Color | White |
| Form | Glistening Powder or Flakes |
| Water Solubility | practically insoluble |
| Vapor Pressure | 0Pa at 25℃ |
| Refractive Index | nD100 1.4250 |
| Log P | 1.571 at 33℃ |
Safety & Handling
Warning GHS07 Hazard Statements H315 Causes skin irritation H319 Causes serious eye irritation H335 May cause respiratory irritation Precautionary Statements P261 Avoid breathing dust/fume/gas/mist/vapours/spray. P264 Wash … thoroughly after handling. P271 Use only outdoors or in a well-ventilated area. P280 Wear protective gloves/protective clothing/eye protection/face protection. P319 Get medical advice/attention if you feel unwell. P321 Specific treatment (see … on this label). P405 Store locked up. P501 Dispose of contents/container in accordance with local regulations. P264+P265 Wash … thoroughly after handling. P302+P352 IF ON SKIN: Wash with plenty of water. P304+P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing. P332+P317 Get emergency medical help. P337+P317 If eye irritation persists: Get medical advice/attention. Get emergency medical help. P362+P364 Take off contaminated clothing and wash it before reuse. P403+P233 Store in a well-ventilated place. Keep container tightly closed. P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
Trade & Regulatory
| HS Code | 29159000 |
| Storage Class | 11 - Combustible Solids |
Other Names
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Chemical Properties
- CAS Number
- 506-30-9
- EC Number
- 208-031-3
- Mol. Weight
- 312.5
- HS Code
- 29159000
- Category
- Oils, Fats & Waxes