Getest volgens artsenijboek | Ph. Eur. USP BP |
Toepasbaar (als droogmiddel) voor | Alkaline fluids (e.g. amines) |
Niet toepasbaar (als droogmiddel) voor | Acids, acid derivatives, phenols |
Partikel grootte | ~5 mm |
Desiccants can absorb water and bind it chemically (reversibly or irreversibly) or physically. The main desiccants can be subdivided into four categories:
Solvent | Molecular sieve |
Potassium carbonate |
Calcium chloride |
Phosphous pentoxide |
Acetic acid | - | - | - | + |
Acetic acid anhydride | - | - | + | - |
Acetic acid ethyl ester | 4 Å | + | - | + |
Acetic acid methyl ester | 4 Å | + | - | + |
Acetone | 3 Å | + | + | - |
Acetonitrile | 3 Å | + | + | + |
Benzene | 4 Å | - | + | - |
1-Butanol | - | + | - | - |
2-Butanol | - | + | - | - |
1-Butanone | - | + | + | - |
Chloroform | 4 Å | - | + | + |
Cyclohexane | 4 Å | - | - | - |
Dichloremethane | 4 Å | - | - | - |
Diethylether | 4 Å | - | + | - |
Diisopropyl ether | 4 Å | - | + | - |
Dimethyl formamide | 4 Å | - | - | - |
Dioxan | 4 Å | - | + | - |
Ethanol | 3 Å | - | - | - |
Ethyle formate | - | - | + | - |
n-Hexane | 4 Å | - | - | - |
Methanol | 3 Å | - | + | - |
2-Propanol | 3 Å | - | - | - |
Pyridine | 4 Å | - | - | - |
Tetrahydrofurane | 4 Å | - | + | - |
Toluene | 4 Å | - | + | - |
Trichloroethylene | - | + | - | - |
Xylene (Isomer compound) | 4 Å | - | + | - |
Assay (acidim.) | 98,0-100,5 % |
Identity | complies |
Appearance of solution | complies |
Insoluble matter | complies |
Carbonate (as Na2CO3) | ≤1,0 % |
Chloride (Cl) | ≤0,02 % |
Sulphate (SO4) | ≤0,02 % |
Iron (Fe) | ≤0,001 % |
Potassium (K) | ≤0,5 |
Sodium (Na) | 54-59,8 % |