In addition, orange silica gel is a non-toxic, pollution-free desiccant that will meet the needs of environmentally conscious companies. This orange silica gel can be used in many applications where visual control of moisture is required, such as in compressed air dryers, breathers, and for protection of non‐consumable packaged goods, as well as drying and storing flowers and seeds. That said, orange silica gel should not be used in direct contact with products that are intended for consumption, such as food and pharmaceuticals.
Orange silica gel has methyl violet which is capable of changing from orange to green, or orange to colorless. It is also toxic and potentially poisonous, even though it does have some medicinal merits. Like blue silica gel, once the color changes to indicate maximum adsorption, it can be reactivated with heat to dry out the moisture. When it turns orange again, it’s ready to use.
