Overview
Isooctanol (CAS 26952-21-6 ) is a branched-chain fatty alcohol used across industrial manufacturing as a solvent, plasticizer intermediate, and emulsifier component. It serves as a key building block in the production of esters and surfactants.
Controlled branching in this chemical improves performance over linear-chain alternatives in various industrial applications. In plasticizers and polymer processing, it is reacted with phthalic or adipic acid anhydrides to produce ester plasticizers.
These esters improve flexibility in PVC compounds and other polymer systems. Coatings and ink formulators use it as a coalescing solvent and viscosity modifier, particularly in systems requiring controlled evaporation and film formation.
Lubricant and metalworking fluid manufacturers incorporate it into ester-based base oils and additive packages. Its branched structure contributes to improved low-temperature fluidity in these specialized industrial formulations.
In personal care and textile processing, it functions as a carrier and emollient component. It is ideal for formulations requiring moderate polarity and low water miscibility across diverse manufacturing sectors.
Isooctanol is supplied as a clear liquid in drummed and bulk quantities suited to industrial procurement volumes. Technical grade is the standard commercial offering for most large-scale chemical operations.
Purity specifications are typically at 99% or above depending on the supplier and intended application. This ensures consistent performance when used as a chemical intermediate or high-quality industrial solvent.
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Physical Properties
| Melting Point | <100 °C |
| Boiling Point | 186 °C @ Press: 800 Torr |
| Density | 0.832 g/cm³ @ Temp: 20 °C |
| Appearance | Colorless to off-white Liquid |
| Odor | at 100.00 %. fatty orange rose |
| Form | Liquid; a mixture of closely related isomeric, primary alcohols with branched chains |
| Refractive Index | 1.4046 (estimate) |
| Log P | 2.730 (est) |
Safety & Handling
Warning GHS07 GHS09 GHS08 Hazard Statements H227 Combustible liquid H302 Harmful if swallowed H315 Causes skin irritation H319 Causes serious eye irritation H320 Causes eye irritation H335 May cause respiratory irritation H336 May cause drowsiness or dizziness H371 May cause damage to organs H373 May causes damage to organs through prolonged or repeated exposure H402 Harmful to aquatic life H411 Toxic to aquatic life with long lasting effects H412 Harmful to aquatic life with long lasting effects Precautionary Statements P210 Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking. P260 Do not breathe dust/fume/gas/mist/vapours/spray. P261 Avoid breathing dust/fume/gas/mist/vapours/spray. P264 Wash … thoroughly after handling. P270 Do not eat, drink or smoke when using this product. P271 Use only outdoors or in a well-ventilated area. P273 Avoid release to the environment. 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). P330 Rinse mouth. P391 Collect spillage. P403 Store in a well-ventilated place. P405 Store locked up. P501 Dispose of contents/container in accordance with local regulations. P264+P265 Wash … thoroughly after handling. P301+P317 Get emergency medical help. P302+P352 IF ON SKIN: Wash with plenty of water. P304+P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing. P308+P316 Get emergency medical help immediately. 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. P370+P378 Use … for extinction. 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.
Other Names
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Chemical Properties
- CAS Number
- 26952-21-6
- EC Number
- 248-133-5
- Mol. Weight
- 130.23
- Category
- Alcohols & Glycols