Reusable silica gel desiccant box

Introduction

Colour change of orange indicating silica gel
showing saturation in %

The Micro-Tec reusable desiccant box consists of a small perforated plastic box filled with silica gel. The base and the top of the plastic box contain slots for air circulation The silica gel sorbent captures moisture while the silica gel is conveniently held inside the box. Ideal to lower humidity in closed containers and to protect sensitive samples, parts, materials and assemblies from moisture. Size of the Micro-Tec reusable desiccant box is 55x55x23mm; it contains 45g of either orange indicating or white non-indicating silica gel desiccant.
Silica gel comes in the form of 2-3mm glass beads and contains 2.5nm pores; this translates to the huge surface area of 800m2/g. Silica gel readily adsorbs water on its vast surfaces and reduces the humidity in a closed container until it is saturated. Works best at room temperatures and at high humidity, but will work in the full 0-100°C range. The Micro-Tec desiccant pack can be used in smaller desiccators up to 100l; use multiple Micro-Tec packs for larger containers. The orange indicating materials changes from orange (dry) to dark green (8-10%) water; maximum capacity is around 40% water. Both the orange indicating and white non-indicating silica gel can be easily regenerated by heating at 140°C in an oven or by microwaving 3 x 3 min at 900 watt max.
Available as:

• Micro-Tec DB5 orange indicating silica gel desiccant box
• Micro-Tec DB6 white non-indicating silica gel desiccant box