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Camphor
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Camphor : ウィキペディア英語版
Camphor

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Camphor () is a waxy, flammable, white or transparent solid with a strong aromatic odor. It is a terpenoid with the chemical formula C10H16O. It is found in the wood of the camphor laurel (''Cinnamomum camphora''), a large evergreen tree found in Asia (particularly in Sumatra, Indonesia and Borneo) and also of the unrelated ''kapur tree'', a tall timber tree from the same region. It also occurs in some other related trees in the laurel family, notably ''Ocotea usambarensis''. Dried rosemary leaves (''Rosmarinus officinalis''), in the mint family, contain up to 20% camphor. Camphor can also be synthetically produced from oil of turpentine. It is used for its scent, as an ingredient in cooking (mainly in India), as an embalming fluid, for medicinal purposes, and in religious ceremonies. A major source of camphor in Asia is camphor basil (the parent of African blue basil).
Norcamphor is a camphor derivative with the three methyl groups replaced by hydrogen.
==Etymology==
The word camphor derives from the French word フランス語:''camphre'', itself from Medieval Latin ラテン語:''camfora'', from Arabic , from Sanskrit, कर्पूरम् / ''karpūram''.〔(Camphor ) at the Online Etymology Dictionary〕 The term ultimately was derived from Old Malay ''kapur barus'' which means "the chalk of Barus". Barus was the name of an ancient port located near modern Sibolga city on the western coast of Sumatra island (today North Sumatra Province, Indonesia). This port was initially built prior to the Indian–Batak trade in camphor, benzoin and spices. Traders from India, East Asia and the Middle East would use the term ''kapur barus'' to buy the dried extracted ooze of camphor laurel trees (''Cinnamonum camphora'') from local Batak tribesmen; the camphor tree itself is endemic to that region. In the proto-Malay-Austronesian language, it is also known as . Even now, the local tribespeople and Indonesians in general refer to aromatic naphthalene balls and moth balls as .

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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