Asynt DrySyn Snowstorm MULTI heating and cooling block

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The DrySyn Snowstorm MULTI from Asynt provides a simple and highly effective way to perform multiple reactions in parallel across a large temperature range, including sub-ambient chemistries such as organometallic syntheses and controlled rate crystallisation studies down to -60°C.

Sub-ambient reactions have traditionally been difficult to undertake reproducibly on a small to medium scale. The product is able to accommodate up to 12 vials or three 100 mL round-bottom flasks, offering sub-ambient reactions in parallel without the need for jacketed reaction vessels or ice baths. Operating with a suitable chiller/circulator, the device provides accurate, stable temperature control down to -60°C and up to +150°C.

Being able to maintain a sub-ambient temperature, sometimes for significant periods, is important for reaction reproducibility. The product connects to an external chiller unit and holds temperatures at a set point for as long as is required. Setting temperature ramping profiles is also possible, which is important in crystallisation studies.