Publish Time: 2023-05-26 Origin: Site
How to choose desiccant for your product?
When choosing desiccants, there are several factors to consider:
1. Humidity level:
The desiccant should be chosen based on the humidity level of the environment it will be placed in. Generally, silica gel or molecular sieve desiccants are effective for most humidity levels.
2. Container size:
The size of the container being protected will also affect the choice of desiccant. Larger containers or packages will require larger or multiple desiccant packets.
3. Material being protected:
Different types of desiccants are better suited for different materials. For example, activated clay is effective for protecting metal, while silica gel is better for protecting electronic devices.
4. Purpose:
The purpose of the desiccant should also be considered. For example, some desiccants are designed to control moisture in food and medicine packaging, while others are used for industrial applications.
5. Safety:
Finally, safety is an important consideration when choosing desiccants. Some desiccants, such as silica gel and clay, are non-toxic and can be safely disposed of, while others may be hazardous and require special handling.
Characteristics of various desiccants:
| Desiccant | Absorption Capacity | Absorption Capacity | Absorption Capacity | Form | Enlargement while saturated | Reusable or not | Evaporate humidity while heated | Release corrosive stuff or not |
| (30 ℃, 10%RH, 72h) | (23 ℃, 40%RH, 72h) | (23 ℃, 90%RH, 72h) | ||||||
| Silica Gel | 17.70% | 27.50% | 40% | always transparent white beads | No | Yes | Yes | No |
| Clay | 14.90% | 18.30% | 29.20% | always grey particles | No | Yes | Yes | No |
| Calcium Chloride | 80.20% | 114.20% | 208.30% | from white powder(dry) to gelatine(moist) | Yes, around 2-3 times | No | Few | Yes,so need to use leak-free paper |
| Magnesium Chloride | 63.40% | 107.90% | 161.80% | from white powder(dry) to white solid form(moist) | Yes, around 2 times | No | Few | Yes,so need to use leak-free paper |
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