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Petroleum or crude oil, also referred to as simply oil, is a naturally occurring yellowish-black liquid mixture of mainly hydrocarbons, [1] and is found in geological formations. The name petroleum covers both naturally occurring unprocessed crude oil and petroleum products that consist of refined crude oil. Petroleum is primarily recovered by ...
An oil is any nonpolar chemical substance that is composed primarily of hydrocarbons and is hydrophobic (does not mix with water) and lipophilic (mixes with other oils). Oils are usually flammable and surface active. Most oils are unsaturated lipids that are liquid at room temperature. The general definition of oil includes classes of chemical ...
U.S. olive oil is a mixture of virgin and refined oils; U.S. refined olive oil is an oil made from refined oils with some restrictions on the processing. These grades are voluntary. Certification is available, for a fee, from the USDA. In 2014, California adopted a set of olive oil standards for olive oil made from California-grown olives.
Palm oil is an edible vegetable oil derived from the mesocarp (reddish pulp) of the fruit of oil palms. [1] The oil is used in food manufacturing, in beauty products, and as biofuel. Palm oil accounted for about 36% of global oils produced from oil crops in 2014. [2] Palm oils are easier to stabilize and maintain quality of flavor and ...
Synthetic oil. Synthetic oil is a lubricant consisting of chemical compounds that are artificially modified or synthesised. Synthetic lubricants can be manufactured using chemically modified petroleum components rather than whole crude oil, but can also be synthesized from other raw materials. The base material, however, is still overwhelmingly ...
Castor oil is a vegetable oil pressed from castor beans. [1] It is a colourless or pale yellow liquid with a distinct taste and odor. Its boiling point is 313 °C (595 °F) and its density is 0.961 g/cm 3. [2] It includes a mixture of triglycerides in which about 90% of fatty acids are ricinoleates.
v. t. e. A bottle of peanut oil. Vegetable oils, or vegetable fats, are oils extracted from seeds or from other parts of edible plants. Like animal fats, vegetable fats are mixtures of triglycerides. [1] Soybean oil, grape seed oil, and cocoa butter are examples of seed oils, or fats from seeds.
Corn oil (North American) or maize oil (British) is oil extracted from the germ of corn ( maize ). Its main use is in cooking, where its high smoke point makes refined corn oil a valuable frying oil. It is also a key ingredient in some margarines. Corn oil is generally less expensive than most other types of vegetable oils .