Ключевые слова: acid, ash, base, black, bottle, caustic, chemical, chemical compound, chemistry, compound, corrosive, danger, dangerous, destroy, dry, factory, flake, glass, hazardous, hydrated, hydroxide, industrial, industry, inorganic, label, laboratory, lye, manufacturing, material, naoh, object, ph, poison, potassium, powder, reaction, risk, scale, science, soap, sodium, sodium hydroxide, solid, substance, test, toxic, warning, wash, white,