The contents of desiccators are exposed to atmospheric moisture whenever the desiccators are opened. It also requires some time to achieve a low humidity. Hence they are not appropriate for storing chemicals which react quickly or violently with atmospheric moisture such as the alkali metals. A glovebox or Schlenk-type apparatus may be more suitable for these purposes.
Your choice for laboratory products and scientific equipment should always be made with value in mind. The Vacuum Desiccators offered here, along with over 750,000 other pieces of laboratory glassware we have available to you have been selected by Lab Depot as high value lab products. As such, full warranties on our Glass Desiccators and all other laboratory glassware listed on this website provide you with complete protection.