HYSG-11SILICAGEL blue, granules

Silica gel, blue irregular shaped granules with fine pore，an internal surface area of approx. 800m2/g. Because of its very large surface area, SG-11 exhibits a high adsorption for water vapour. ,when absorbing moisture, turns from blue to light red, visually indicating the relative humidity of the given environments. The internal micropore structure is uniform, the physical and chemical properties are stable, the thermal stability is good, and the mechanical strength is high.

Formula          SiO2. n (H2O) (synthetic amorphous silicium dioxide)

CAS-No.          7631-86-9

Physical and chemical      
Adsorption capacity and color

RH=50%   ≧20.0%  purple

Characteristics            
RH=90%   ≧28.0    light red

Moisture loss (140 °C 4h) Max. 5%

Bulk density               650 – 800 g/l

Grain size             

2 – 5 mm

Other special gradings on request

Applications         
Due to its special pore structure SG-11 is applied for many technical processes:

Mainly used for absorbing moisture, anti-rusting of instruments, gauges and equipment in the enclosed conditions. After absorbing moisture, it turns from blue to red, visually indicating the relative humidity of the given environments.

When being used with ordinary silica gel or drier, it indicates to which extent the drier absorbs the moisture and judges the relative humidity of a given environment. It is widely used as silica gel drier for the packing of precision instruments, leathers, electric appliances, etc.

Selective adsorption separation of organic gas or liquid.

The temperature at reactivation should not exceed 180 °C. 

Packing            
Airtight in 25 kg cartons,bags with PE-Inliner,Airtight in 500 kg bulk bags with PE-Inliner.

Handling           
SG-10must always be kept in airtight containers to avoid pre-adsorption with water vapour. Face masks should be used at continual exposure to extensive dusting.

Note                 
Any details of application possibilities do not free the purchaser from  

he obligation of performing his own tests on the material supplied by the seller, in order to determine their suitability for the intended rocesses and purposes. Application, use and processing of the material cannot be controlled by the seller and are thus the sole responsibility of the purchaser.