Silica gel desiccant is a kind ofcolorless or light yellow transparent or semitransparent or pale yellowspherical particle. The interior of this crystal is a very fine pore networkstructure. These pores can absorb water and retain the water through itsphysical attractive force. Silica gel desiccant has the characteristics ofnon-toxicity, tastelessness, no corrosion and no pollution.
Raw Materials ofSilica Gel: White silica gel desiccant, orange silica gel desiccant, bluesilica gel desiccant.
Component | Ratio | Component | Ratio |
SiO2 | 99.6 | MgO | 0.01 |
Na2O | 0.17 | CaO | 0.04 |
Fe203 | 0.02 | AI2O3 | 0.16 |
Blue silica gel is with about 3‰-66‰ cobalt chloride added in, and orange silica gel contains 0.9‰ methyl violet (environmental friendly) | |||
S/N | Item | Reference standards (JIS-Z0701) | |
1 | Particle appearance | Colorless spherical particles | |
2 | Qualified size | 99% | |
3 | Bulk density | 764g/l | |
4 | PH value | 5.6 | |
5 | Specific resistance Ω.cm | 3166 | |
6 | Heating loss | 2.6 | |
7 | Water adsorption capacity | RH=20% | ˃10.6% ˃27.2% ˃37.0% Saturated water adsorption capacity (25℃) ˃38.3% |
RH=50% | |||
RH=80% | |||
RH=95% | |||
8 | Water content | ˂5% | |
Usage and notes
1. Put the silica gel desiccant and the product to be protected into a packing bag,and then just seal it (very important).
2. After the above step, the remained product shall be sealed as soon as possible forfear of bad effect. This product shall not be exposed in the air for more than2h.
3. The used amount for the product to be protected is dependent on its material,packing space, storage conditions (e.g. temperature and humidity) and thecompactness of the packing material.
4. The silica gel desiccant is nontoxic but inedible,
