High Quality Silica Gel Orange And Blue Small Pack Drying Agent

Silica gel pack is a highly active adsorption material.It is usually made of reacting with sodium silicate and sulfuric,aging as well as acid bubble.It is insoluble in water and any solvents.Non-poisonous and tasteless,chemical stability.It won't react with any materials except alkali and hydrofluoric acid. Advantage 100% natural degradation,saturated moisture absorption reach 30% ,maximum duration last 1 year. Characteristic Silica gel is a high absorbent. Exposing in the air (RH 80%-90%, 25°C) 7 hours, it can absorb 35-39% water. The silica gel is made by people with the Na2SiO2 and chemical relative. The character is a lot of holes in inner, the outside structure is the anomalistic graininess. The inner configuration makes many hiatus net, forming the effect of capillary absorbent and coagulating. So it can absorb the surrounding water, alcohol, hydrocarbon and any other chemical molecules. People use sio2 physical character and now make it the best absorbent.  The Physical Character   TYPE ( A ) Adsorption 20%RH 12 50%RH 25 90%RH 35 Loss on drying(%) at 180 °C 2.0 PH 5.0 SPECIFIC RESISTANCE 10.000 Surface density (g/ml) 0.73 Surface Area( ml2/g ) 650 Pore Capability( ml/g ) 0.36 Average pore diameter( A ) 0.36 SPECIFIC HEAT ( kcal/mhr °C ) 0.22 Thermal conductivity( kcal/mhr °C ) 0.15   The Composition:(Unit:wt%) SiO2 99.7 Fe2O3 0.08 AL2O3 0.16 CaO 0.04 Na2O 0.02   Usage:Prevent  the articles corrosion and rust in the sealed container. Appication:instruments and gauges, electronically products, leathers, shoes, foodstuffs, medicines and household electric appliances, etc Note:The moisture content, packing and size can be adjusted according to customers different requirements