- Product Name: DYBP (2,5-dimethyl-2,5-bis(tert-butylperoxy)-3-hexyne)
- CAS Number: 1068-27-5
- Appearance: Pale yellow liquid
- Contains approximately 95% technical-grade 2,5-dimethyl-2,5-bis(tert-butylperoxy)-3-hexyne
- This bifunctional dialkyl peroxide is used as a free-radical initiator at temperatures above 180°C for the cross-linking of polyethylene.
- Appearance: Pale yellow liquid
- Content: Approximately 95% w/w
- Active oxygen: Approximately 10.6% w/w
- No desensitizer
- Density (20°C): approx. 0.889 g/cm³
- Viscosity (20°C): approx. 6.3 mPa·s
- Critical temperature (SADT): approx. 80°C
- Refrigerated stability: Freezing point approx. 8°C
- Recommended storage temperature: +10°C to +40°C
- Shelf life at 25°C: 12 months
- Half-life data: 10 hours/1 hour/1 minute (0.1 M/benzene): 128°C/149°C/195°C
- Used as a peroxide crosslinking agent for polyethylene (HDPE, LLDPE, and carbon black-containing LDPE).
- Crosslinking temperature: 180°C or higher; avoid premature crosslinking (sintering) at temperatures below 150°C.
- Usage: 0.2–2% (weight/weight) of the supplied product.
- High thermal stability, low volatility, and high efficiency.
- Decomposition products volatilize without producing odors and do not cause blooming on the surface of vulcanized materials.
- Adhere to the recommended storage temperature range to ensure product quality and safety.
- Comply with local laws and regulations, as well as the requirements of regulatory agencies and your insurance provider.
- Avoid freezing the product; if frozen, thaw it by allowing it to return to the recommended storage temperature—do not use high heat to thaw it.
- This product is packaged in 20-liter plastic drums with a net weight of 35 pounds.
- A standard pallet weighs 1,050 pounds (30 containers).
- Please refer to our Safety Data Sheet (SDS) for detailed information. This material is highly hazardous and self-reactive; avoid heating it beyond the maximum recommended storage temperature and limit conditions.
- This material has been pre-registered under REACH.
- This information and all further technical recommendations reflect our knowledge and experience based on internal testing of local raw materials and are intended to provide you with information about our products and their applications.
- This information should not be construed as a warranty regarding the properties of the described products or their suitability for specific applications, nor should it be interpreted as providing complete instructions for use.
- This information does not constitute a warranty regarding the product’s properties or shelf life, nor does it impose any liability or other legal responsibility on our part, including with respect to existing third-party intellectual property rights, particularly patent rights.
- We reserve the right to make any changes based on technical progress or further developments.
- The application and use of products based on our technical recommendations are beyond our control and are the sole responsibility of the user.
- The user is not relieved of the obligation to conduct careful inspection and testing to verify that the purchased products are suitable for the intended application.