Product Description
2-Ethylhexanoic acid, also known as isooctanoic acid, is a carboxylic acid organic compound with the molecular formula C8H16O2 and an approximate molecular weight of 144.22. It typically appears as a colorless, transparent, oily liquid with a mild odor. Its physical properties include a melting point of -83°C, a boiling point of 227.6°C, a relative density of 0.9105 (20°C), a refractive index of 1.4241 (20°C), a flash point of 127°C, an autoignition temperature of 377°C, and a viscosity of 7.73 mPa·s (20°C). It is soluble in hot water and ether, and slightly soluble in ethanol.
2-Ethylhexanoic acid shows strong acidity and can react with sodium hydroxide to form carboxylate salts. It can also undergo esterification with alcohols under strong oxidizing conditions to produce esters such as triethylene glycol di(2-ethylhexanoate). In addition, it can react with alkali metals and heavy metals to form metal soaps, including zinc, lead, cadmium, and barium salts.
Properties
| Melting point | -59 °C |
| Boiling point | 228 °C(lit.) |
| density | 0.906 |
| vapor density | 4.98 (vs air) |
| vapor pressure | <0.01 mm Hg ( 20 °C) |
| refractive index | n20/D 1.425(lit.) |
| Fp | 230 °F |
| storage temp. | Store below +30°C. |
| solubility | 1.4g/l |
| form | Liquid |
| pka | pK1:4.895 (25°C) |
| color | Clear |
| PH | 3 (1.4g/l, H2O, 20℃) |
| Odor | Mild odour |
| PH Range | 3 at 1.4 g/l at 20 °C |
| explosive limit | 1.04%, 135°F |
| Water Solubility | 2 g/L (20 ºC) |
| BRN | 1750468 |
| Exposure limits | ACGIH: TWA 5 mg/m3 |
| Stability: | Stable. Combustible. Incompatible with strong oxidizing agents, reducing agents, bases. |
| InChIKey | OBETXYAYXDNJHR-UHFFFAOYSA-N |
| LogP | 2.7 at 25℃ |
| CAS DataBase Reference | 149-57-5(CAS DataBase Reference) |
| NIST Chemistry Reference | Hexanoic acid, 2-ethyl-(149-57-5) |
| EPA Substance Registry System | 2-Ethylhexanoic acid (149-57-5) |
Safety Information
| Hazard Codes | Xn |
| Risk Statements | 63-41-37/38-20/21/22 |
| Safety Statements | 36/37-36/37/39-26-2 |
| RIDADR | UN 3265 8/PG 2 |
| WGK Germany | 1 |
| RTECS | MO7700000 |
| F | 13 |
| Autoignition Temperature | 699 °F |
| TSCA | Yes |
| HazardClass | 8 |
| PackingGroup | III |
| HS Code | 29159080 |
| Hazardous Substances Data | 149-57-5(Hazardous Substances Data) |
| Toxicity | LD50 orally in Rabbit: 3640 mg/kg LD50 dermal Rabbit > 2000 mg/kg |
Product Application
Most of 2-ethylhexanoic acid is converted into metal salts such as zirconium, cobalt, molybdenum, and zinc, which are widely used as paint driers and heat stabilizers in polyvinyl chloride (PVC) plastics. Tin salts are commonly applied as additives in plastic pipe production, while barium and cadmium salts are used in plastic calendering products and as stabilizers.
In addition, 2-ethylhexanoic acid and its esters are applied in pharmaceuticals, fungicides, metal lubricants, and cosmetics. Its glyceride serves as an excellent plasticizer. The compound is also an important raw material for the pharmaceutical product carbenicillin and is used in the synthesis of various dyes and fragrances.
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Company Profile
Shandong Rongsheng Chemical Co., Ltd. is situated within one of Shandong’s key chemical industrial zones. As a manufacturing‑backed chemical export enterprise, we devote ourselves to sourcing and supplying basic chemical materials as well as specialty functional additives, covering technical optimization, domestic market distribution and overseas business development. Our product offerings serve numerous downstream industries, such as polymer modification, coating and ink manufacturing, wastewater treatment and other fine‑chemical related manufacturing sectors.
Our standardized manufacturing facilities adopt full‑link quality oversight throughout production to deliver stable factory‑direct goods. By skipping layers of intermediate dealers, we offer global buyers flexible procurement options, including high‑volume bulk shipments, customized formula adjustment, non‑standard packaging solutions and small‑lot sample supply. Our flexible production capacity accommodates orders of different sizes and maintains reliable delivery cycles.
Our international sales team possesses solid hands‑on know‑how in chemical foreign‑trade operations. Well‑informed of import regulatory standards and cross‑border logistics plans from various regions, we deliver comprehensive export support for overseas clients: inquiry follow‑up, sample preparation, customized solution matching, customs clearance, cargo scheduling and sustained after‑sales assistance.
We take reliable product quality and sincere business ethics as the foundation for win‑win collaboration. With stable product performance, flexible service modes and fully regulation‑compliant logistics resources, we deliver economical and dependable supply‑chain solutions for partners all over the world. We look forward to building lasting cooperative relationships and achieving shared progress in the global fine‑chemical market.
