Sulfur Recovery Daily Question 2018.9.3
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Question: Mention some important physical and chemical properties of methyldiethanolamine. Answer: Methyl diethanolamine, whose chemical name is MDEA, is a brown liquid that is soluble in water. Its aqueous solution has a weakly alkaline nature. The molecular formula is CH3N(CH2CH2OH)2, with a molecular weight of 119.16. Its density at 20°C is between 1.038 and 1.044 g/cm3; the freezing point is -21°C, the viscosity is 10 centipoise, the heat of vaporization is 124 kilocalories per kilogram, and the pH value ranges from 8 to 9. It does not volatilize along with water vapor, and it can selectively absorb hydrogen sulfide.
Methyl diethanolamine, whose chemical name is MDEA, is a brown liquid that is soluble in water. Its aqueous solution has a weakly alkaline nature. The molecular formula is CH3N(CH2CH2OH)2, with a molecular weight of 119.16. Its density at 20°C is between 1.038 and 1.044 g/cm3; the freezing point is -21°C, the viscosity is 10 centipoise, the heat of vaporization is 124 kilocalories per kilogram, and the pH value ranges from 8 to 9. It does not volatilize along with water vapor, and it can selectively absorb hydrogen sulfide.
Methyl diethanolamine, whose chemical name is MDEA, is a brown liquid that is soluble in water. Its aqueous solution has a weakly alkaline nature. The molecular formula is CH3N(CH2CH2OH)2, with a molecular weight of 119.16. Its density at 20°C is between 1.038 and 1.044 g/cm3; the freezing point is -21°C, the viscosity is 10 centipoise, the heat of vaporization is 124 kilocalories per kilogram, and the pH value ranges from 8 to 9. It does not volatilize along with water vapor, and it can selectively absorb hydrogen sulfide.
Methyl diethanolamine, whose chemical name is MDEA, is a brown liquid that is soluble in water. Its aqueous solution has a weakly alkaline nature. The molecular formula is CH3N(CH2CH2OH)2, with a molecular weight of 119.16. Its density at 20°C ranges from 1.038 to 1.044 g/cm3. The freezing point is -21°C, the viscosity is 10 centipoise, and the heat of vaporization is 124 kilocalories per kilogram. The pH value is between 8 and 9. It does not volatilize along with water vapor, and it can selectively absorb sulfur compounds.
Methyl diethanolamine, whose chemical name is MDEA, is a brown liquid that is soluble in water. Its aqueous solution has a weakly alkaline nature. The molecular formula is CH3N(CH2CH2OH)2, with a molecular weight of 119.16. Its density at 20°C ranges from 1.038 to 1.044 g/cm3. The freezing point is -21°C, the viscosity is 10 centipoise, and the heat of vaporization is 124 kilocalories per kilogram. The pH value is between 8 and 9. It does not volatilize along with water vapor, and it can selectively absorb sulfur compounds.
Methyl diethanolamine, whose chemical name is MDEA, is a brown liquid that is soluble in water. Its aqueous solution has a weakly alkaline nature. The molecular formula is CH3N(CH2CH2OH)2, with a molecular weight of 119.16. Its density at 20°C is between 1.038 and 1.044 g/cm3; the freezing point is -21°C, the viscosity is 10 centipoise, the heat of vaporization is 124 kilocalories per kilogram, and the pH value ranges from 8 to 9. It does not volatilize along with water vapor, and it can selectively absorb hydrogen sulfide.
Methyl diethanolamine, whose chemical name is MDEA, is a brown liquid that is soluble in water. Its aqueous solution has a weakly alkaline nature. The molecular formula is CH3N(CH2CH2OH)2, with a molecular weight of 119.16. Its density at 20°C is between 1.038 and 1.044 g/cm3; the freezing point is -21°C, the viscosity is 10 centipoise, the heat of vaporization is 124 kilocalories per kilogram, and the pH value ranges from 8 to 9. It does not volatilize along with water vapor, and it can selectively absorb hydrogen sulfide.
Methyl diethanolamine, whose chemical name is MDEA, is a brown liquid that is soluble in water. Its aqueous solution has a weakly alkaline nature. The molecular formula is CH3N(CH2CH2OH)2, with a molecular weight of 119.16. Its density at 20°C is between 1.038 and 1.044 g/cm3; the freezing point is -21°C, the viscosity is 10 centipoise, the heat of vaporization is 124 kilocalories per kilogram, and the pH value ranges from 8 to 9. It does not volatilize along with water vapor, and it can selectively absorb hydrogen sulfide.
Methyl diethanolamine, whose chemical name is MDEA, is a brown liquid that is soluble in water. Its aqueous solution has a weakly alkaline nature. The molecular formula is CH3N(CH2CH2OH)2, with a molecular weight of 119.16. Its density at 20°C ranges from 1.038 to 1.044 g/cm3. The freezing point is -21°C, the viscosity is 10 centipoise, and the heat of vaporization is 124 kilocalories per kilogram. The pH value is between 8 and 9. It does not volatilize along with water vapor, and it can selectively absorb hydrogen sulfide.
Methyldiethanolamine is a chemical substance that is miscible with water and alcohols, and slightly soluble in ether. Widely used as emulsifiers for the desulfurization and purification of oilfield gas and coal gas, absorbents for acidic gases, pH regulators, and catalysts for polyurethane foam. 【Relative density (water=1)] 1.042 (25°C) 【Boiling point】247°C 【Viscosity】101 mPa·s (20°C) 【Refractive index】1.4642 (20°C) 【Appearance】Colorless or slightly yellow oily liquid.
Methyl diethanolamine, whose chemical name is MDEA, is a brown liquid that is soluble in water. Its aqueous solution has a weakly alkaline nature. The molecular formula is CH3N(CH2CH2OH)2, with a molecular weight of 119.16. Its density at 20°C is between 1.038 and 1.044 g/cm3; the freezing point is -21°C, the viscosity is 10 centipoise, the heat of vaporization is 124 kilocalories per kilogram, and the pH value ranges from 8 to 9. It does not volatilize along with water vapor, and it can selectively absorb hydrogen sulfide.