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  1. IMMEDIATE PRECAUTIONARY MEASURE: Isolate spill or leak area in all directions for at least 50 meters (150 feet) for liquids and at least 25 meters (75 feet) for solids. SPILL: Increase the immediate precautionary measure distance, in the downwind direction, as necessary.

  2. It melts congruously at 7.55 °C into a liquid with 35.7% NaOH and density 1.392 g/cm 3, and therefore floats on it like ice on water. However, at about 4.9 °C it may instead melt incongruously into a mixture of solid NaOH·3.5H 2 O and a liquid solution.

  3. 14 Ιουλ 2023 · Sodium hydroxide is an ionic crystal composed of Na + cations and OH – anions. It is characterized by its colorless appearance, lack of odor, and high deliquescence. The substance exhibits a high degree of solubility in aqueous solutions, and its dissolution is accompanied by the release of thermal energy.

  4. NaOH Molar mass: 39.9971 g/mol Appearance White solid Density: 2.1 g/cm³, solid Melting point: 318°C (591 K) Boiling point: 1390°C (1663 K) Solubility in water 111 g/100 ml (20°C) Basicity (pK b) -2.43 Hazards MSDS: External MSDS NFPA 704

  5. 1 Its melting point is 318°C, and it has a boiling point of 1388°C. 2 It is highly soluble in water, with a solubility of 111 g/100 ml at 20°C. 3 The density of the substance is 2.13 g/cm 3. Production and Industrial Application.

  6. 18 Νοε 2023 · NaOH Molar mass: 39.9971 g/mol Appearance White oily solid Odor: Odorless Density: 2.13 g/cm 3: Melting point: 318 °C (604 °F; 591 K) Boiling point: 1,388 °C (2,530 °F; 1,661 K)

  7. 13 Αυγ 2021 · Boiling point. 1388 °C. Water solubility. 1000 g/L (25 °C), 3370 g/L (100 °C), Exothermic reaction. Solubility in Methanol. Soluble. Solubility in Ethanol. Soluble. Solubility in ether.

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