Camphor

Camphor ;
Names:	camphor; 2-bornanone; 2-camphanone; 1,7,7-trimethylbicyclo[2.2.1]heptan-2-one;
Formula:	C10H16O;
Molar mass:	152.236 g/mol;
Density:	0.99 g/cm3;
Crystal system:	orthorhombic; a=8.9277 Å, b=27.0359 Å, c=7.3814 Åα=90°, β=90°, γ=90°;
Shapes:	https://en.crystalls.info/w/uploads/media/b/bc/Rhombic_prism.json Rhombic prism https://en.crystalls.info/w/uploads/media/5/51/Rhombic_pedion.json Rhombic pedion Template:Snowflake https://en.crystalls.info/w/uploads/media/5/52/Needle.json Needle ;
Color:	colorless;
Melting point:	179.75 °C452.9 K <br />355.55 °F <br />815.22 °R <br />;
Boiling point:	204 °C477.15 K <br />399.2 °F <br />858.87 °R <br />;
Refractive index:	1.47 ;
Magnetic properties:	diamagnetic; χ=-1.03 · 10-4cm³/mol;
Stability:	volatile

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Description

Organic compound, terpenoid, cyclic ketone. Doesn't form water hydrates.

Where to buy

Can be bought in pharmacy (as "Camphor spirit").

Influence of temperature

Can sublimate at any temperature, but best results are achieved a ~40..60°C

Notes

Crystals can grow by both solution evaporation and by sublimation in closed vessel. Camphor is a main ingridient of observation tool called stormglass - solution of camphor in alcohol with addition of ammonium chloride and potassium nitrate.

Storage conditions

For crystal storing use hermetic vessel with wadding moistened with such solution near the crystal. You can use such alternatives as vessel with vaseline or vegetable oil, organic non-hygroscopic solvent (kerosene or liquid paraffin). Also you can use acrylate polymer or another kinds of solidifying plastic.

Solubility

TableGraph

Temperature	g/`100,00` g water	g/`100,00` g ethanol	g/`100,00` g acetone	g/`100,00` g diethyl ether	g/`100,00` g toluene	g/`100,00` g chloroform
25°C298.15 K <br />77 °F <br />536.67 °R <br />	`0.12`	`100`	`250`	`100`		`400`
29°C302.15 K <br />84.2 °F <br />543.87 °R <br />					`186`

Highly soluble in nickel tetracarbonyl and 1,1,2-trichloro-1,2,2-trifluoroethane.

Gallery

Grown using sublimation methodCamphor, R. Tanaka, Flickr albumR. TanakaFlickr album
Grown using sublimation methodCamphor, R. Tanaka, Flickr albumR. TanakaFlickr album
Grown using sublimation methodCamphor, Sergey Solobchuk, VKontakteSergey SolobchukVKontakte
CamphorOpioidopamine, reddit.comOpioidopamineReddit.com
StormglassCamphor, R. Tanaka, Flickr albumR. TanakaFlickr album
StormglassCamphor, R. Tanaka, Flickr albumR. TanakaFlickr album

Video

Sources

Ketones
Camphor (C₁₀H₁₆O) • Nootkatone (C₁₅H₂₂O)

Camphor
Names:	camphor 2-bornanone 2-camphanone 1,7,7-trimethylbicyclo[2.2.1]heptan-2-one
Formula:	C₁₀H₁₆O
Molar mass:	152.236 g/mol
Density:	0.99 g/cm³
Crystal system:	orthorhombic a=8.9277 Å, b=27.0359 Å, c=7.3814 Åα=90°, β=90°, γ=90°
Shapes:	Rhombic prism Rhombic pedion Template:Snowflake Needle
Color:	colorless
Melting point:	179.75 °C452.9 K <br />355.55 °F <br />815.22 °R <br />
Boiling point:	204 °C477.15 K <br />399.2 °F <br />858.87 °R <br />
Refractive index:	1.47
Magnetic properties:	diamagnetic χ=-1.03 · 10^-4cm³/mol
Stability:	volatile