Does an aqueous solution fall under the category of \"liquefaction\"?
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It is a light hydrocarbon medium that is gaseous under standard conditions; it is non-toxic but flammable and explosive, has high permeability, and is soluble in water. The medium used in existing equipment is an aqueous solution of this type of hydrocarbon. The relationship between temperature and volatility is unknown. So how should this medium be defined? Is it a liquefied hydrocarbon? How to determine flammability and permeability?
It mainly depends on the temperature and pressure parameters. If there is no volatilization under the matching pressure and temperature conditions, the hazard of this solution is low. Otherwise, it should be classified as a hazardous medium.
Even though it is soluble in water, there is still an issue with solubility; should the saturated vapor pressure be taken into consideration?
Actually, I’m not sure whether saturation vapor pressure needs to be taken into account for water-soluble media. Based on the conditions specified in the process, the operating pressure is determined according to the pumping pressure, without considering any volatilization effects
No, it’s more accurate to say that molten iron is liquefied
I tend to think it does not fall under the category of \"liquefied\" substances. Since a water solution has been formed, there is no need to consider its flammability or permeability anymore, unless it is specifically stated to be a \"saturated solution\"”