Sulfur Recovery Daily Question 2018.9.1
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Question: State the important physical and chemical properties of sulfur dioxide. Answer: Sulfur dioxide is a colorless, toxic gas with a strongly pungent, suffocating odor and a bitter taste. Its molecular formula is SO2, and its molecular weight is 64.06. SO2 is easy to condense; it can be liquefied at normal pressure when cooled to -10°C, or at room temperature when the pressure is increased to 405.2 KPa. Therefore, SO2 can be used as a refrigerant. Its melting point is -76.1°C, and its boiling point is -10.02°C. At 20°C, one volume of water can dissolve 40 volumes of SO2 gas. The aqueous solution of SO2 forms sulfurous acid (H2SO3), which is a moderately strong acid; therefore, in the presence of water or water vapor, SO2 corrodes steel more easily than H2S. Moreover, the sulfurous acid formed in reaction with water is also slowly oxidized into sulfuric acid ； Soluble in ethanol, ether, chloroform, methanol, sulfuric acid, and acetic acid ； It is non-flammable and does not support combustion; the maximum allowable concentration in workshop air is 15 mg/m3.
Sulfur dioxide is a colorless, toxic gas with a strongly pungent, suffocating odor and a bitter taste; its molecular formula is SO2 and its molecular weight is 64.06. SO2 is easy to condense – it can be liquefied at normal pressure when cooled to -10°C, or at room temperature when the pressure is increased to 405.2 KPa. Therefore, SO2 can be used as a refrigerant. Its melting point is 76.1°C, and its boiling point is 10.02°C. At 20°C, one volume of water can dissolve 40 volumes of SO2 gas. The aqueous solution of SO2 forms sulfurous acid (H2SO3), which is a moderately strong acid; therefore, in the presence of water or water vapor, SO2 corrodes steel more easily than H2S. Moreover, the sulfurous acid formed in reaction with water is also slowly oxidized into sulfuric acid ； Soluble in ethanol, ether, chloroform, methanol, sulfuric acid, and acetic acid ； It is non-flammable and does not support combustion; the maximum allowable concentration in workshop air is 15 mg/m3.
Answer: Sulfur dioxide is a colorless, toxic gas with a strongly pungent, suffocating odor and a bitter taste; its molecular formula is SO2, and its molecular weight is 64.06. SO2 is prone to condensation
Sulfur dioxide is a colorless, toxic gas with a strongly pungent, suffocating odor and a bitter taste; its molecular formula is SO2 and its molecular weight is 64.06. SO2 is prone to condensation – it can be liquefied at normal pressure when cooled to -10°C, or at room temperature when the pressure is increased to 405.2 KPa. Therefore, SO2 can be used as a refrigerant. Its melting point is -76.1°C, and its boiling point is -10.02°C. At 20°C, one volume of water can dissolve 40 volumes of SO2 gas. The aqueous solution of SO2 forms sulfurous acid (H2SO3), which is a moderately strong acid; therefore, in the presence of water or water vapor, SO2 corrodes steel more easily than H2S. Additionally, sulfurous acid formed in reaction with water is also slowly oxidized into sulfuric acid ； Soluble in ethanol, ether, chloroform, methanol, sulfuric acid, and acetic acid ； It is non-flammable and does not support combustion; the maximum allowable concentration in workshop air is 15 mg/m.
Sulfur dioxide is a colorless, toxic gas with a strongly pungent, suffocating odor and a bitter taste; its molecular formula is SO2 and its molecular weight is 64.06. SO2 is prone to condensation – it can be liquefied at normal pressure when cooled to -10°C, or at room temperature when the pressure is increased to 405.2 KPa. Therefore, SO2 can be used as a refrigerant. Its melting point is -76.1°C, and its boiling point is -10.02°C. At 20°C, one volume of water can dissolve 40 volumes of SO2 gas. The aqueous solution of SO2 forms sulfurous acid (H2SO3), which is a moderately strong acid; therefore, in the presence of water or water vapor, SO2 corrodes steel more easily than H2S. Additionally, sulfurous acid formed in reaction with water is also slowly oxidized into sulfuric acid ； Soluble in ethanol, ether, chloroform, methanol, sulfuric acid, and acetic acid ； It is non-flammable and does not support combustion; the maximum allowable concentration in workshop air is 15 mg/m.
Sulfur dioxide is a colorless, toxic gas with a strongly pungent, suffocating odor and a bitter taste; its molecular formula is SO2 and its molecular weight is 64.06. SO2 is easy to condense – it can be liquefied at normal pressure when cooled to -10°C, or at room temperature when the pressure is increased to 405.2 KPa. Therefore, SO2 can be used as a refrigerant. Its melting point is 76.1°C, and its boiling point is 10.02°C. At 20°C, one volume of water can dissolve 40 volumes of SO2 gas. The aqueous solution of SO2 forms sulfurous acid (H2SO3), which is a moderately strong acid; therefore, in the presence of water or water vapor, SO2 corrodes steel more easily than H2S. Moreover, the sulfurous acid formed in reaction with water is also slowly oxidized into sulfuric acid ； Soluble in ethanol, ether, chloroform, methanol, sulfuric acid, and acetic acid ； It is non-flammable and does not support combustion; the maximum allowable concentration in workshop air is 15 mg/m3.
Sulfur dioxide is a colorless, toxic gas with a strongly pungent, suffocating odor and a bitter taste; its molecular formula is SO2 and its molecular weight is 64.06. SO2 is prone to condensation – it can be liquefied at normal pressure when cooled to -10°C, or at room temperature when the pressure is increased to 405.2 KPa. Therefore, SO2 can be used as a refrigerant. Its melting point is -76.1°C, and its boiling point is -10.02°C. At 20°C, one volume of water can dissolve 40 volumes of SO2 gas. The aqueous solution of SO2 forms sulfurous acid (H2SO3), which is a moderately strong acid; therefore, in the presence of water or water vapor, SO2 corrodes steel more easily than H2S. Additionally, sulfurous acid formed in reaction with water is also slowly oxidized into sulfuric acid ； Soluble in ethanol, ether, chloroform, methanol, sulfuric acid, and acetic acid ； It is non-flammable and does not support combustion; the maximum allowable concentration in workshop air is 15 mg/m.
Sulfur dioxide is a colorless, toxic gas with a strongly pungent, suffocating odor and a bitter taste; its molecular formula is SO2 and its molecular weight is 64.06. SO2 is prone to condensation – it can be liquefied at normal pressure when cooled to -10°C, or at room temperature when the pressure is increased to 405.2 KPa. Therefore, SO2 can be used as a refrigerant. Its melting point is -76.1°C, and its boiling point is -10.02°C. At 20°C, one volume of water can dissolve 40 volumes of SO2 gas. The aqueous solution of SO2 forms sulfurous acid (H2SO3), which is a moderately strong acid; therefore, in the presence of water or water vapor, SO2 corrodes steel more easily than H2S. Additionally, sulfurous acid formed in reaction with water is also slowly oxidized into sulfuric acid ； Soluble in ethanol, ether, chloroform, methanol, sulfuric acid, and acetic acid ； It is non-flammable and does not support combustion; the maximum allowable concentration in workshop air is 15 mg/m.
Sulfur dioxide is a colorless, toxic gas with a strongly pungent, suffocating odor and a bitter taste; its molecular formula is SO2 and its molecular weight is 64.06. SO2 is easy to condense – it can be liquefied at normal pressure when cooled to -10°C, or at room temperature when the pressure is increased to 405.2 KPa. Therefore, SO2 can be used as a refrigerant. Its melting point is -76.1°C, and its boiling point is -10.02°C. At 20°C, one volume of water can dissolve 40 volumes of SO2 gas. The aqueous solution of SO2 forms sulfurous acid (H2SO3), which is a moderately strong acid; therefore, in the presence of water or water vapor, SO2 corrodes steel more easily than H2S. Moreover, the sulfurous acid formed in reaction with water is also slowly oxidized into sulfuric acid ； Soluble in ethanol, ether, chloroform, methanol, sulfuric acid, and acetic acid ； It is non-flammable and does not support combustion; the maximum allowable concentration in workshop air is 15 mg/m.
Sulfur dioxide is a colorless, toxic gas with a strongly pungent, suffocating odor and a bitter taste; its molecular formula is SO2 and its molecular weight is 64.06. SO2 is easy to condense – it can be liquefied at normal pressure when cooled to -10°C, or at room temperature when the pressure is increased to 405.2 KPa. Therefore, SO2 can be used as a refrigerant. Its melting point is 76.1°C, and its boiling point is 10.02°C. At 20°C, one volume of water can dissolve 40 volumes of SO2 gas. The aqueous solution of SO2 forms sulfurous acid (H2SO3), which is a moderately strong acid; therefore, in the presence of water or water vapor, SO2 corrodes steel more easily than H2S. Moreover, the sulfurous acid formed in reaction with water is also slowly oxidized into sulfuric acid ； Soluble in ethanol, ether, chloroform, methanol, sulfuric acid, and acetic acid ； It is non-flammable and does not support combustion; the maximum allowable concentration in workshop air is 15 mg/m3.
Sulfur dioxide is a colorless, toxic gas with a strongly pungent, suffocating odor and a bitter taste; its molecular formula is SO2 and its molecular weight is 64.06. SO2 is prone to condensation – it can be liquefied at normal pressure when cooled to -10°C, or at room temperature when the pressure is increased to 405.2 KPa. Therefore, SO2 can be used as a refrigerant. Its melting point is -76.1°C, and its boiling point is -10.02°C. At 20°C, one volume of water can dissolve 40 volumes of SO2 gas. The aqueous solution of SO2 forms sulfurous acid (H2SO3), which is a moderately strong acid; therefore, in the presence of water or water vapor, SO2 corrodes steel more easily than H2S. Additionally, sulfurous acid formed in reaction with water is also slowly oxidized into sulfuric acid ； Soluble in ethanol, ether, chloroform, methanol, sulfuric acid, and acetic acid ； It is non-flammable and does not support combustion; the maximum allowable concentration in workshop air is 15 mg/m.