4a Molecular Sieve Desiccant Removes Moisture From Drugs And Reagents
Introduction
Most of the drugs, whether tablets, capsules, granules or powder, all of them are very easy to decompose or dissolve for the reason of absorbing moisture in humid conditions. Take the effervescent tablet for example. When it contacts with water or damp air, a chemical reaction is occurring, resulting in tablet swelling, deformation, breakdown or even losing effect. So drugs are usually required to be placed in packages with depth desiccant (molecular sieves) to ensure the validity of drugs.
Application
1. 4A Molecular Sieve used for purification of argon.
2. 4A Molecular Sieve for deep drying of gases and liquids.
3. 4A Molecular Sieve dehydration in the industries of paint, dye and coating.
4. 4A Molecular Sieve static drying in medicine packaging.
5. 4A Molecular Sieve especially used in the dehydration of automotive air system.
Technical Index
| Molecular Sieve 4A Typical Physical Properties | ||||
| Items | Unit | 8*12 Mesh | 4*6 Mesh | |
| Bead Size | mm | 1.6-2.5 | 3.0-5.0 | |
| Bulk Density | g/ml ≥ | 0.70-0.82 | 0.65-0.80 | |
| Equilibrium Water Capacity @ 25℃ | wt% ≥ | 20.5-22.5 | 20.5-22.5 | |
| Equilibrium Methanol Capacity | wt% ≥ | 15.0 | 15.0 | |
| Heat of Adsorption | BTU/lb of H2O | 1800 | 1800 | |
| Crush Strength | Point Contact | N ≥ | 30-80 | 85-160 |
| Variation Coefficient | - | 0.3 | 0.3 | |
| Attrition Rate | wt% ≤ | 0.1 | 0.1 | |
| Size Qualification | % ≥ | 98 | 98 | |
| Package Moisture | wt% ≤ | 1.5 | 1.5 | |
| The interval value of the indexes above are on the basis of the different grade of Molecular Sieve 4A | ||||
Storage
Avoid moisture, avoid scrolling, throw and sharp shocking during transportation, rainproof facilities should be readied.
It should be stored in dry and ventilated warehouse to prevent contamination or moisture.
