The indicating type silica gel is almost same as the other except that it changes its color when it is fully contaminated and at that time it needs to be replaced. The best thing about silica gel is that once it is fully contaminated it is possible to reuse it again by heating them over 300oC.
As the silica gel beads are non-toxic it is possible to use them with consumable goods. But still it cannot be used loosely so, they are used in small breathing packets which allows to pass the air through it. There are various silica gel suppliers who sell the desiccant in bulk. But before purchasing any desiccant go through the details of the product. It should be approved by USFDA and passes the food and pharma grade. Only those desiccants passing tests under this category are non-toxic and are safe to use with consumable products. Silica gel is also used in breathers. The purpose of using these breathers is that usually in big factories sudden cooling and heating of machineries produces huge amount of moisture which needs to be absorbed. Many of the desiccants are used all on its own but some prefer to use it in combination with other desiccants like activated carbon or molecular sieves. Molecular sieves are known for absorbing odor. Using it in combination with other desiccant enhances the absorbing quality.
0 comments:
Post a Comment