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Petroleum, also known as crude oil and oil, is a naturally occurring, yellowish-black liquid found in geological formations beneath the Earth’s surface. It is commonly refined into various types of fuels. Petroleum consists basically of compounds of only two elements, carbon and hydrogen. Because these elements combine in a large variety of complex ways, however, crude oils vary greatly in their chemical composition. Their physical properties such as color, specific gravity, and viscosity also vary widely.
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hite spirit (solvent 402) or mineral spirits, also known as mineral turpentine, turpentine substitute, petroleum spirits, solvent naphtha (petroleum), varsol, Stoddard solvent, or, generically, “paint thinner”, is a petroleum-derived clear liquid used as a common organic solvent in painting and decorating.
DESCRIPTIONMethylene diphenyl diisocyanate is an aromatic diisocyanate. Three isomers are common, varying by the positions of the isocyanate groups around the rings: 2,2'-MDI, 2,4'-MDI, and 4,4'-MDI. The 4,4' isomer is most widely used, and is also known as 4,4'-diphenylmethane diisocyanate.
Gasoil (French: Gasoil) or petroleum gas or diesel fuel (French: Diésel) is used as fuel for diesel engines and thermal installations. Its hydrocarbon range is between C14-C20 and even C25 with a boiling point range of 385-250 degrees Celsius. Petroleum gas mainly consists of three groups of paraffinic, naphthenic and aromatic, has a minimum flash point of 54 ° C and a maximum pour point of 0 ° C.
DESCRIPTIONToluene di isocyanate (TDI) is a member of isocyanates which are chemically related to Polyurethanes. Two of the six possible isomers are commercially important: 2,4-TDI and 2,6-TDI. 2,4-TDI is produced in the pure state, but TDI is often marketed as 80/20 and 65/35 mixtures of the 2,4 and 2,6 isomers respectively. The Produced TDI in KRNPC is a 80:20 mixture of the 2,4 and 2,6 isomers with purity of at least 99.5%.
DESCRIPTIONNaphtha refers to a range of volatile and flammable liquids produced by the distillation of petroleum. The liquids, which differ slightly in their chemical structures and boiling points, have various applications in the refining process – the main one as a feedstock for gasoline and the manufacture of olefins by the petrochemical industry.
DESCRIPTIONBenzene (cyclohexa-1, 3) is the basis of a group of hydrocarbons referred to as “aromatics”. It is a clear colorless liquid, with a characteristic aromatic smell. Benzene is produced worldwide in substantial quantities, and because it is very easy to transport by ship, it is traded internationally.
Ammonium chloride, abbreviated as ammonium chloride. It refers to the ammonium salt of hydrochloric acid, which is mostly a by-product of the alkali industry. Containing 24%~26% of nitrogen, it is white or slightly yellow square or octahedral small crystal. It has two dosage forms of powder and granular. Granular ammonium chloride is not easy to absorb moisture and easy to store, while powdered ammonium chloride is used more. Basic fertilizer for the production of compound fertilizer