Substance Index
3,5-Dimethyl-1,2-dioxolane-3,5-diol
CAS 13784-51-52 brands · 9 models
Substance Identity
- Chemical name
- 3,5-Dimethyl-1,2-dioxolane-3,5-diol
- CAS number
- 13784-51-5
- Theoretical active oxygen
- 4.5%
Cross-Brand Model Reference
Grades sharing this CAS are interchangeable in most formulations. Re-check assay, carrier and half-life before switching.
United Initiators7 Models
- United Initiators CUROX®A-300 3,5-Dimethyl-1,2-dioxolane-3,5-diol 13784-51-5
- United Initiators CUROX®A-300R 3,5-Dimethyl-1,2-dioxolane-3,6-diol 13784-51-5
- United Initiators CUROX®A-390 3,5-Dimethyl-1,2-dioxolane-3,5-diol 13784-51-5
- United Initiators NOROX®FC-100 3,5-Dimethyl-1,2-dioxolane-3,3-diol 13784-51-5
- United Initiators NOROX®PD-40 3,5-Dimethyl-1,2-dioxolane-3,4-diol 13784-51-5
- United Initiators NOROX®PD-40 FRED 3,5-Dimethyl-1,2-dioxolane-3,5-diol 13784-51-5
- United Initiators NOROX®WPC-100 3,5-Dimethyl-1,2-dioxolane-3,5-diol 13784-51-5
Applications
- Used for curing unsaturated polyester resins, such as maleic and isocyanuric resins, in combination with cobalt accelerators.
- The “pot life” of the resin + peroxide mixture is typically only a few hours, depending on temperature and resin type.
- The “stirring time” (gel time of resin + peroxide + accelerator) is relatively short but can be extended by adding an inhibitor (e.g., Inhibitor TC-510).
- This initiator generates a significant amount of heat, resulting in a short demolding time and excellent demolding performance.
- Curing remains relatively rapid even at temperatures below 20°C, particularly when combined with Accelerator CA-12.
- Some fillers, pigments, or stabilizers may interfere with curing or prevent it entirely.