Properties of coal tar
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A container has a design pressure of 0.75 MPa and a design temperature of 95°C. What are the properties of this coal tar? Is it explosive? Moderate hazard? Toxicity? Thank you!
Coal tar; coal paste. National standard code: 32192; CAS number: 65996-93-2. Molecular formula: a mixture of polycyclic aromatic hydrocarbons and heterocyclic aromatic compounds containing nitrogen, oxygen, and sulfur. It is a brown to black viscous liquid or semi-solid product obtained through the dry distillation of coal. There are high-temperature, medium-temperature, and low-temperature coal tar. It is a mixture of aromatic hydrocarbons, polycyclic aromatic hydrocarbons, and heterocyclic aromatic compounds containing nitrogen, oxygen, and sulfur; it comprises thousands of compounds, of which more than 370 have been isolated and identified, with most present in very low concentrations. Density is 1.18–1.23 g/cm3. Soluble in benzene, ether, dithiocarbene, chloroform, ethanol, and propanone; slightly soluble in water. It is obtained by condensing and separating the gas produced by the high-temperature decomposition of coal in a coking furnace. Used to produce phenols, naphthalenes, anthracenes, coumarins and resins, pyridines, quinolines and their derivatives, as well as washing oils, light solvent oils, asphalt, etc.
Thank you! So what are those specific features? Could you be more detailed?
The coal tar separated from coke oven gas is a substance with moderate toxicity; its fire hazard classification is Class C, and it is classified as A2 when the fluid temperature is below 100°C. When the pressure is not greater than 4.0 MPa, it belongs to GC2 class pressure pipelines.
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It is designed for moderately hazardous, explosive media
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Do you have any previous experience in doing this? Experience has turned into a product, right?