Dessicants

With orange indicator colour. Self-indicating drying agent free from any heavy metals and therefore environmentally compatible. The gel is naturally orange when active and at a 6 weight-% saturation level. As the gel adsorbs moisture, the colour changes into green.
The range of application is identical with that of white silica gel. The colour change, however, represents a great advantage since it allows monitoring of the saturation level. The gel can be regenerated when heated at a temperature of maximum 120 °C until it turns to its original orange colour.
The safety data sheets of these products are available under www.llg-labware.com.

For moisture reduction in desiccators and precision laboratory instruments. The transparent polypropylene dish allows visual inspection of silica gel, which changes in colour from blue to pale pink as it absorbs moisture. The desiccant can be easily regenerated by heating cartridges in an oven at 50°C overnight or at 100°C for 6 hours. For faster regeneration, remove the membrane lid, heat the spent gel crystals in a suitable glass or porcelain dish at 150°C in the oven for one hour.

• Inert, non-corrosive, non-toxic silica gel
• Individually foil sealed

Pollution monitors for collecting gases and vapours in the ambient atmosphere. Ideal for detecting pollutant concentration in the workplace. The 3M™ Pollution monitor is equipped with a single charcoal adsorbent wafer that binds pollutants in the air by means of diffusion.

• Suitable for personal and area monitoring
• Easy to use: the pollution monitor can simply be clipped onto clothing
• Small and lightweight