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Camphor (/ ˈ k æ m f ər /) is a waxy, colorless solid with a strong aroma. [5] It is classified as a terpenoid and a cyclic ketone.It is found in the wood of the camphor laurel (Cinnamomum camphora), a large evergreen tree found in East Asia; and in the kapur tree (Dryobalanops sp.), a tall timber tree from South East Asia.
When placed on the skin, camphor can be absorbed through mucous membranes or broken skin. This also can be toxic—which is why you should never put VapoRub in or around the nostrils, especially a ...
Turpentine is also used as a source of raw materials in the synthesis of fragrant chemical compounds. Commercially used camphor, linalool, alpha-terpineol, and geraniol are all usually produced from alpha-pinene and beta-pinene, which are two of the chief chemical components of turpentine. These pinenes are separated and purified by distillation.
This oil, after being washed with aqueous sodium hydroxide to remove acidic components (chiefly various phenols), and with sulfuric acid to remove basic components, undergoes fractional distillation to isolate naphthalene. The crude naphthalene resulting from this process is about 95% naphthalene by weight.
Spirit of camphor; Spirit of ether, a solution of diethyl ether in alcohol "Spirit of Mindererus", ammonium acetate in alcohol "Spirit of nitre" is not a spirit in this sense, but an old name for nitric acid (but "sweet spirit of nitre" was ethyl nitrite) Similarly "spirit(s) of salt" actually meant hydrochloric acid. The concentrated, fuming ...
Unguentine is an over-the-counter topical antiseptic ointment produced by Lee Pharmaceuticals. It was introduced in 1893 as the first antiseptic surgical dressing ointment by Norwich Pharmaceuticals, who later brought Pepto Bismol to market.
Borneol can be synthesized by reduction of camphor by the Meerwein–Ponndorf–Verley reduction (a reversible process). Industrially, a racemic mixture of camphor is used, leading to a racemic mixture of borneol and isoborneol. The chirality can be controlled by changing the chirality of camphor: (+)-camphor gives (−)-isoborneol and ...
“It is important to rule out any worrisome growths, and if it is something benign, then your dermatologist can easily remove the area and help ease your pain from the scab.” You Might Also Like