K-Flex DP is dipropylene glycol dibenzoate, which is one of the oldest members of the plasticizer family and one of the most versatile polar plasticizers still commercially available. K-Flex DP is compatible with a wide range of polar polymers and rubbers and is often blended with other plasticizers such as K-Flex DE (diethylene glycol dibenzoate).
| Attribute | Value |
|---|---|
| Specifications | |
| Acidity% (as benzoic acid, maximum %) | 0.1 |
| Assay% (As benzoate ester, Minimum,% ) | 98.0 |
| Color Maximum (APHA) | 100 |
| Typical Properties | |
| Color (APHA) | 50 |
| Density, ASTM D1475, 25°C g/ml | 1.11 |
| Density, ASTM D1475 ,25°C lbs/gal | 9.3 |
| Flash Point, ASTM D92, °C | 204 |
| Freeze Point, °C | -51 |
| Glass Point, by DSC, °C | -51 |
| Moisture Content, % | 0.02 |
| Refractive Index, 25°C | 1.5238 |
| Solidification Point, °C | -31 |
| Solubility, in water, % | 0.20 |
| Solubility, water in % | 0.40 |
| Solubility Parameter, Small’s Hildebrands | 9.5 |
| Specific Gravity, 25/25°C | 1.11 |
| Surface Tension, ASTM D1331, 25°C, dynes/cm | 42.8 |
| Vapor Pressure, 25°C (extrapolated), mmHg | 2.57×10-6 |
| Viscocity, Brookfield RVT, 20 RPMs at 25°C, cps and mPa.S | 99 |
| Viscosity, Kinematic, 25deg;C, cSt | 89 |
| VOC, ASTM D2369, % | 3.2 |
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