Product Description
Characteristics
The European Union decided in 1998 that cobalt chloride is carcinogen and bule silica gel containing containing cobalt chloride was thus prohibited and disappeared form European and American markets.To meet the needs of market,our company produced color-variable silica gel.
In the form of spherical of irregularly-shaped grains,the gel is currently presented either purple ,orange or yellow.With silicon dioxide as the chief ingredient,the product performs all the functions of blue silica gel but does not contain cabalt chloride and is therfore innocuous and pollution-free,and its color varies as humidity changs. Uses
Mainly used for drying and indicating humidity of precision instruments,medicine chemicals,foodstaff,clothing,leather,electric appliances and other industrial gases,etc. How to used
put proper amounts in a suitable container of package and set the package or container where drying of humidity indication is needed.This gel can be used indepentenly or in combination with other types of silica gel.After changing colof as a result of absorbing dampness,the gel can be reused after heating to chang back to its pre-use color.Heating is most suitable be between100-120℃