... gel is currently presented purple, orange or yellow.2 With silicon dioxide as the chief ingredient, the product ... contain cobalt chloride and is therefore innocuous and pollution-free,3 Its color varies as humidity changes.Use: ... YellowRH=50% >Dark Green Size :1-3mm,2-4mm,3-5mm,4-8mm Packag: 25kg compound bag or 25kg ... Desiccant to green or to white (1-3mm, 2-5mm, 4-6mm, etc) for power transformers