Camphor

From Academic Kids

General

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(+)-Campher

Name Camphor
Chemical formula C10H16O.
Appearance White or clear crystals
CAS-number 76-22-2

Physical

Formula weight 152.2358 amu
Melting point 177 °C
Boiling point 207 °C
Density 0.99 ×103 kg/m3
Solubility 0.12 g in 100 ml water

Safety

Dangers Flammable, combustible

Information from Chemfinder (http://chemfinder.cambridgesoft.com).

SI units were used where possible. Unless otherwise stated, standard conditions were used.

Camphor, also known as 1,7,7-trimethyl-bicyclo(2,2,1)heptan-2-one, d-camphor, d-(+)-camphor, (+)-2-bornanone, d-2-bornanone, 1,7,7-Trimethylnorcamphor, 2-Camphanone, 2-camphonone, Bornan-2-one, or Caladryl has the chemical formula C10H16O.

Camphor is a white transparent waxy crystalline solid with a strong penetrating pungent aromatic odor. It is found in wood of the camphor laurel, Cinnamonum camphora, which is a large evergreen tree found in Asia (particularly in Borneo, hence its alternate name); it can also be synthetically produced from oil of turpentine.

Modern uses include as a plasticizer for cellulose nitrate, as a moth repellent, in embalming, and in fireworks. A form of anti-itch gel currently on the market uses camphor as its active ingredient. Historically it has been used in medicine. In 1980, the United States Food and Drug Administration set a limit of 11% allowable camphor in consumer products and totally banned products labeled as camphorated oil, camphor oil, camphor liniment, and camphorated liniment. Camphor is readily absorbed through the skin and produces a feeling of cooling similar to that of menthol and acts as slight local anesthetic; however, it is poisonous when ingested and can cause seizures, mental confusion, irritability, and neuromuscular hyperactivity. Since alternative treatments exist, medicinal use of camphor is discouraged, except for skin-related uses, such as medicated powders, which contain only small amounts of camphor.

Other substances deriving from trees are sometimes wrongly sold as camphor.

Reactions

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de:Campher ja:樟脳 pl:Kamfora sv:Kamfer

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