Montmorillonite Clay Desiccant Dosage Calculation Method
The dosage of montmorillonite desiccant used depends on the packing material, sealing condition, Packing Capacity, packing surface area and storage life of the factors. We can confirm the different dosage according to the different requirement. According to the following simple formula for calculating montmorillonite desiccant dosage, can also use the more accurate the desiccant dosage calculator.
If packing use waterproof moisture-proof packaging material, According to the packing surface area, the dosage of the desiccant, according to the following calculations or check the table below:
Packing area（㎡） | Desiccant dosage（unit） | Packing area（㎡） | Desiccant dosage（unit） | Packing area（㎡） | Desiccant dosage（unit） |
0.01 | 1/6 | 0.06 | 1 | 0.2 | 8 |
0.02 | 1/3 | 0.05 | 2 | 0.4 | 16 |
0.03 | 1/2 | 0.1 | 4 | 1.9 | 80 |
Desiccant on the number of units （UNIT）=17 * packing area (㎡)
If the packing material is sealed metal container, according to the following formula or check the table below:
Volume（m³） | Desiccant dosage（Unit） | Volume（m³） | Desiccant dosage（Unit） | Volume（m³） | Desiccant dosage（Unit） |
0.004 | 1/6 | 0.02 | 1 | 0.2 | 8 |
0.008 | 1/3 | 0.05 | 2 | 0.4 | 16 |
0.012 | 1/2 | 0.1 | 4 | 1.9 | 80 |
Desiccant on the number of units （UNIT）=K *V
K：42.3
V: The interior of the container volume cubic meters
Attention:
Montmorillonite desiccant should be put in the appropriate place of packaging container.
As far as possible to ensure that all the sealed space by montmorillonite desiccant moisture absorption, it should be increase the dosage of montmorillonite desiccant for the protection of precious material, To prevent the loss caused by condensation.
Comments:
A unit (unit) is desiccant adsorption unit which are widely used in foreign countries.
It means that when RH=20%, and under the condition of the balance of 25 ℃ temperature,
The number of desiccant required can absorb 3 g water.
On the basis of desiccant American military standard (Mil-D-3464E), Accord with a standard bags of desiccant adsorption ability to meet:
One Unit desiccant can absorb 3g water under the condition of the balance of 25 ℃ temperature ( RH=20%).
One Unit desiccant can absorb 6g water under the condition of the balance of 25 ℃ temperature ( RH=40%).
Exactly speaking, One unit Montmorillonite Clay desiccant is approximately equal to 33 grams.
