Distilled water should be used, as it is considered to be a pure water, not weighing chlorine or minerals, which may cause some kind of reaction or boil that could damage the sample or equipment; has a pH of around 7, making it a neutral p, there are different types of distilled water that are classified by their purity level; they are classified through their chemical and physical properties.
Distilled water is used to prevent the embedding of metal ions on the resistance, this water is widely used not only in the baths of mary but in the different uses of the laboratory, to clean the equipment, prepare samples since it is free of electrolytes and mineral salts, in addition it is insulating and repels magnetism, and above all distilled water is used because its boiling point is higher than ordinary tap water.