Ключевые слова:
Nickel|Mercury|Chromium|Chemical properties|Lead|Purity|Sodium carbonate|Potable water|Water treatment|Solubility|Melting point|Chemical analysis and testing|Density|Physical properties of materials|Concentration (chemical)|Determination of content|Toxic materials|Storage|Specific heat|Marking|Additives|Impurities|Hardness|Safety measures|Bulk density|Cadmium|Arsenic|Emission spectrophotometry|Chemical composition