Moisture Conditioning Agent
Moisture Conditioning Agent
Calcium chloride and anhydrous magnesium sulfate absorb water in the air and are utilized as moisture absorbents.
In particular, anhydrous magnesium sulfate can absorb almost the same amount of water as its weight. It is also utilized as a humidity regulator because it releases the water it has absorbed depending on conditions in the surrounding environment.
Anhydrous Magnesium Sulfate
Anhydrous magnesium sulfate is not only used as a desiccant by itself, but when blended with PE resin and processed into sheets and films, it is expected to add hygroscopicity to containers and packaging materials and keep the humidity inside the packaging material low.
Therefore, it is used for a packaging material for pharmaceuticals and food products with high hygroscopicity.
Anhydrous magnesium sulfate
＋
Moisture
→
Magnesium sulfate 7-hydrate
MgSO4
＋
7H2O
→
MgSO4・7H2O
| Substance name | Brand name | Grade | Characteristics |
|---|---|---|---|
| Magnesium sulfate anhydrous | High purity anhydrous magnesium sulfate | Industrial grade | |
| Anhydrous magnesium sulfate (Specially processed products)* |
Industrial grade | A mixture of anhydrous magnesium sulfate and calcium stearate, this product suppresses the agglomeration of anhydrous magnesium sulfate and makes it easier to process. | |
| Fine powder type which is suitable for kneading to resin etc. | |||
| Magnesium sulfate trihydrate | Dry magnesium sulfate | in-house | |
| Calcium chloride | Calcium chloride | ACS |