For procurement managers, R&D scientists, and formulation chemists, understanding the precise specifications of chemical raw materials is fundamental to ensuring product quality, process efficiency, and final product performance. Isononyl Alcohol (INA), identified by CAS number 27458-94-2, is no exception. While its primary use is in the production of plasticizers like DINP, and it also serves roles in surfactants and lubricants, the quality of the INA itself directly impacts these downstream applications. This guide aims to clarify the key specifications of Isononyl Alcohol and highlight why prioritizing purity from a reputable isononyl alcohol supplier is essential.

Key Specifications for Isononyl Alcohol

When you source Isononyl Alcohol, you’ll typically encounter the following critical parameters:

  • Appearance: High-quality Isononyl Alcohol should consistently appear as a Clear Liquid. Any discoloration or presence of suspended solids may indicate contamination or degradation, suggesting a need for further purification or a different supplier.
  • Purity (Assay): This is arguably the most crucial specification. For most industrial applications, particularly in plasticizer synthesis, a minimum purity of ≥99% is standard. Some suppliers may offer slightly lower purity grades, but for optimal performance and predictable reaction outcomes, a high assay is always recommended. When you buy isononyl alcohol CAS 27458-94-2, always verify the purity level.
  • Molecular Formula: C9H20O. This confirms the basic chemical identity of the alcohol.
  • Molecular Weight: Approximately 144.25 g/mol. This is important for stoichiometric calculations in chemical reactions.
  • Water Content: Typically specified as ≤0.5%. Excess water can interfere with esterification reactions and impact product quality.
  • Melting Point: While Isononyl Alcohol is a liquid at room temperature, a melting point is often listed for characterization. Values around 64-65 °C might be seen for higher purity isomers, but it's generally considered a liquid. (Note: Some sources cite a melting point around -64 °C, emphasizing its liquid state at ambient temperatures. The 64-65 °C figure might refer to a specific solidified isomer or a misunderstanding in data sources; for practical purposes, it is a liquid).
  • Boiling Point: Often cited around 100 °C at reduced pressure (e.g., 13 Torr), or higher at atmospheric pressure. This indicates its relatively low volatility.
  • Density: Typically around 0.824 - 0.8347 g/cm³ at 20°C. This property is important for volumetric calculations and handling.

The Importance of Purity in Isononyl Alcohol Applications

For manufacturers of Diisononyl Phthalate (DINP), the purity of Isononyl Alcohol is directly linked to the plasticizer's performance characteristics:

  • Enhanced Thermal Stability: High-purity INA ensures the resulting DINP has superior heat resistance.
  • Improved Low-Temperature Flexibility: The precise structure derived from pure INA contributes to better performance in cold conditions.
  • Reduced Migration and Volatility: Proper esterification with pure INA leads to plasticizers that are less prone to loss or migration.

In applications such as surfactants and lubricants, impurities in Isononyl Alcohol can lead to inconsistent foaming, reduced emulsification efficiency, or undesirable odor profiles.

Partnering with a Trusted Manufacturer

When you purchase isononyl alcohol, it is crucial to work with a reliable isononyl alcohol manufacturer who can consistently supply material meeting these specifications. Requesting a Certificate of Analysis (CoA) with each batch is a standard practice. If you are looking for competitive isononyl alcohol prices and guaranteed quality, inquire with established Chinese suppliers. They often provide the necessary technical documentation and support to ensure your sourcing needs are met effectively.

By focusing on these critical specifications, procurement professionals can confidently select and utilize Isononyl Alcohol, ensuring the quality and performance of their final products.