Merck KGaA has developed an innovative septum closure for its SeccoSolv dried solvent range.
SeccoSept incorporates a special cap that can be rotated over a precisely fitted septum. Five apertures in the rotating cap expose extra-large circular areas of septum each for repeated puncturing.
According to Merck, this represents a major benefit compared with smaller septum areas, which are prone to irreversible damage when punctured repeatedly. The silicone used in SeccoSept has outstanding self-sealing properties that allow rapid sealing of the puncture site.
The rotating cap allows each of the five septum areas to be selected in turn, so that only the area that is currently being used is exposed. After removing the solvent the user turns the cap to the closed position, so that the fresh puncture site is immediately protected from potential contaminants.
A security ring on the screw closure and the seal on the cap opening remove any doubt as to whether the product has been opened previously. The SeccoSept closure thus ensures that the solvent is in perfect condition before, during and after opening.
When needed, the rotating cap permits one-handed operation of the septum bottle. If larger quantities of solvent need to be withdrawn, it is possible to remove the cap altogether. SeccoSept is offered as an alternative to the closure system currently used for the SeccoSolv line. The product has been submitted for patenting.
