Large particle cobalt-free color-changing silica gel 4-8mm orange

Orange silica gel is available in spherical or irregularly shaped granules, with an appearance of orange-yellow. Its main component is silicon dioxide, and its color changes with humidity: it appears orange-yellow when dry and gradually turns green to dark green as it absorbs moisture.

In addition to the properties of blue silica gel, orange silica gel has the advantages of being cobalt chloride-free, non-toxic, and harmless. It is used in combination to indicate the moisture absorption level of desiccants, thereby determining the relative humidity of the environment.

The product is widely used in precision instruments, pharmaceuticals, petrochemicals, food, clothing, leather, household appliances, and other industrial gases.