| 摘要 |
Moisture indicators comprising, as active principle, copper chloride or another salt capable of releasing Cu<++> and Cl<-> ions, and synergistic salts containing chloride ions, which may be hygroscopic on a suitable support. Depending on the application, the support may be amorphous silica or silica gel; a solid paper support for making a moisture-indicating label; or a bentonite or calcium sulphate for making pellets by mechanical pressing. |
