This product is researched and developed on the basis of blue indicating silica gel. it adopts the new type of composite dyeing agent that is nontoxic. In this way, it prevents the environment....
Qingdao Double Dragon Industry Co., Ltd. established in 1997. It was approved by the Ministry of Commerce of the Peopleâ € ™ s Republic of China, owning the rights to import and export, it deals mainly....
: : Characteristics : : Shape: glass-like pellets or lumps. Color: blue or light blue. Including blue gel indicator, chromotropic silica gel and blue silica gel. Turning from blue to red after....
: : Characteristics : : transparent or translucent glass-like pellet or lump. average pore diameter: 2.0-3.0 rim . specific surface area: 650-800 m2/ g pore volume : 0.35-0.45 ml/ g. specific....
: : Physical character : : A stable chemical, flame-resisting, insoluble in any solvent except strong alkali or hydrofluoric acid. Superficial polarity, thermal stability, performance of....