产品描述
NaOH solid dissolved in water exothermic; also known as caustic soda, kerosene, caustic soda, sodium hydroxide, is a common and important strong alkali that
Sodium hydroxide English name: sodium hydroxide (alias Caustic soda).
Sodium hydroxide chemical formula: NaOH
Molecular weight of sodium hydroxide: 40.01.
Sodium hydroxide: density 2.130 g/cm3, melting point 318.4°C, water solubility SOLUBLE, boiling point 1390°C, Kb=3.0, pKb=-0.48. Sodium (Na) is the 11th element in the periodic table, located in the 3rd period of the periodic table, group IA (main group I), belongs to the alkali metal group (all elements of this group are strongly basic, except hydrogen (H)). (except for hydrogen (H) elements). The electron arrangement outside the nucleus is 2, 8, 1 (1s2, 2s2, 2p6, 3s1), * the outer 3s1 electrons for its valence electrons, Na elements can easily lose 3s1 electrons and the formation of positive monovalent sodium ions (Na +), so it is strongly metallic. Na elements and water reaction (reaction with
产品介绍
Pure anhydrous sodium hydroxide is a white translucent, crystalline solid. Sodium hydroxide is very soluble in water, and its solubility increases with the increase of temperature, and it can give off a lot of heat when dissolving, and its saturated solution concentration can reach 26.4 mol/L (1:1) at 288K. Its aqueous solution has astringent taste and slippery feeling, and the solution is strongly alkaline, with all the general properties of alkali. Commercially available caustic soda is available in both solid and liquid forms: pure solid caustic soda is white, in the form of blocks, flakes, rods and granules, with brittle texture; pure liquid caustic soda is a colorless and transparent liquid. Sodium hydroxide is also easily soluble in ethanol and glycerin; but insoluble in ether, acetone and liquid ammonia. It has corrosive effect on fiber, skin, glass, ceramics, etc. It gives off heat when dissolved or diluted in concentrated solution; neutralization reaction with inorganic acid can also generate a lo
