![]() It is also an excellent alternative to Blue Indicating Silica Gel as it is heavy-metal free, environmentally friendly, non-toxic and non-corrosive, which makes it more widely applicable. Ozone was provided by a commercial ozone generator (AOC-052ATEF by Yasunaga Co., Ltd.). Before using or disposing of silica gel products, consider the possible harmful effects associated with it. In this study, the experiment was carried out by using A-type silica gel immobilized with cobalt chloride. Silica gel has the potential to harm humans, animals and the environment. Known as Envirogel, the Orange Indicating Silica Gel is incorporated with a safe organic indicator known as methyl-violet that changes from orange to green once saturated with water vapour, providing a visual indication to users alerting the need for replacement. 27 July, 2017 There are numerous harmful effects of silica gel, especially the form that contains cobalt chloride. It is best suited for use with non-dusting packing of electronic equipment and in applications with visual moisture controls. Blue Indicating Silica GelĬontaining cobalt chloride, the Blue Indicating Silica Gel turns pink from blue when saturated, providing visual alerts for desiccant replacement. How does the structure change as water molecules are added Anhydrous CoCl 2 has the same structure as cadmium. Silica gel is sometimes supplied containing some cobalt chloride, which indicates the water content blue when it is dry, pale pink when the air round it is damp. The cobalt chloride is a deep-blue color when dry and transitions from blue to pink as the desiccant saturates. This silica gel is food safe, allowing it to be packaged together with food products in silica gel sachets. When you heat the gel, it loses the water so you can reuse it. Blue indicating silica gel is a bead or granule that has been washed with a concentration of cobalt chloride (a heavy metal salt). Non-Indicating Silica GelĪlso known as white or clear silica gel, the Non-indicating Silica Gel is tasteless, non-corrosive, non-toxic, non-reactive to chemicals and odourless, making it a safe moisture adsorbing agent. We offer three types of Silica Gel each with its unique applications Non-Indicating Silica Gel, Orange-indicating Silica Gel and Blue-indicating Silica Gel. Silica Gel helps to control relative humidity levels in the surrounding environment, adsorbing up to 40% of its weight and lowering relative humidity down to 40% in an enclosed environment. Silica Gel is a conventional desiccant used to adsorb moisture and water vapour due to its odourless and non-reactive characteristics. > Vertical Form Fill Seal Packaging Machines. ![]()
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