For manufacturers and formulators working with polymers, understanding the detailed specifications of chemical raw materials is fundamental to achieving consistent product quality and performance. Dioctyl Phthalate (DOP), a crucial plasticizer identified by CAS 117-84-0, is no exception. As a leading supplier, we aim to demystify these specifications, helping our clients make informed purchasing decisions when they 'buy Dioctyl Phthalate'.

DOP is a colorless, transparent liquid that adds flexibility and processability to polymers like PVC. The critical specifications that define its quality and suitability for various applications include purity, physical properties, and chemical characteristics. For any manufacturer looking to 'purchase Dioctyl Phthalate' for industrial use, these details are essential.

Key Specifications of Dioctyl Phthalate (DOP)

When reviewing product data sheets or inquiring about 'Dioctyl Phthalate price manufacturer China,' pay close attention to the following:

• Purity (% by wt): This is arguably the most critical specification, typically stated as a minimum percentage. For most industrial applications, a purity of 99% or higher is standard. Higher purity ensures fewer impurities that could negatively affect product performance or lead to unwanted side reactions.
• Appearance: Described as a colorless transparent liquid. Any deviation, such as cloudiness or pronounced color, might indicate degradation or contamination.
• Density (at 20°C, g/ml): This physical property, typically within a range like 1.15 - 1.21 g/ml for some phthalates, is important for material calculations and handling. (Note: For Dioctyl Phthalate specifically, the density is often around 0.98 g/mL at 20°C as per some sources). Manufacturers should provide a precise range for their product.
• Color (Platinum-cobalt scale): A low color value (e.g., 30 max) indicates high purity and good quality. This is important for applications where the color of the plasticizer itself could affect the final product's appearance.
• Acid Value (KOH mg/g): A low acid value (e.g., 0.01 max) signifies minimal free acids, which can be detrimental to polymer stability and processing.
• Refractive Index: This optical property can also serve as an indicator of purity and consistency.
• Flash Point: An important safety parameter, indicating the lowest temperature at which the vapor of the liquid can ignite in the presence of an ignition source.
• Shelf Life: Typically listed as 24 months, with proper storage conditions extending its usability.

Impact of Specifications on Application

Each specification directly influences how DOP performs in its intended application. For instance, high purity is essential for food-grade applications, while consistent density and color are vital for achieving uniform results in coatings and films. Buyers looking to 'purchase Dioctyl Phthalate' must ensure the specifications meet their application's unique demands.

When partnering with a 'Dioctyl Phthalate supplier,' requesting a detailed Certificate of Analysis (COA) for each batch is a standard practice. This document confirms that the supplied product meets the agreed-upon specifications. Choosing a reputable 'Dioctyl Phthalate manufacturer' that is transparent about its product specifications is key to successful and reliable procurement.