At present, in the chemical and pharmaceutical industries, the detection of free water or crystalline water in raw materials and some finished products is commonly used Karl-Fischer Moisture Tester. After testing many imported and domestic instruments of various types as well as inspectors in various industries, the relevant issues related to the use of Karl-Fischer Moisture Tester are presented for communication.
Safety protection
Karl-Fischer reagent mainly consists of a solution of iodine, sulfur dioxide, pyridine and methanol. Among them, sulfur dioxide and pyridine are highly volatile and harmful to human body, so the operation should be carried out under good ventilation conditions. Especially when changing reagents, pay attention to the exhaust air to prevent harmful gases from being absorbed into the body. And wear protective glasses and latex gloves to avoid splashing harmful reagents in the eyes and hands, once the reagents splashed eyes and hands to immediately flush with running water, serious cases are sent to hospital.
But the actual situation is that some operators do not know enough about the hazards of the reagent, without any protective measures, the reagent will be poured in and out at will, full of odor and ignore the problem of self-protection awareness needs to be strengthened.
