#sulfide

[whats-in-a-sentence]

Significant features of the global cycle of copper are summarized in Fig. 13.7.

"Environmental Chemistry: A Global Perspective", 4e - Gary W. VanLoon & Stephen J. Duffy

[earthstory]

quartzo_roxo

Pirita - coleção particular

Inter-penetrating pyrite cubes

[mineralsandsomerocks]

Quartz with Sphalerite and potentially Covellite

Locality: Unknown

[bijoux-et-mineraux]

Miargyrite - San José Mine, San José del Progreso, Oaxaca, Mexico

[frenchfotographics]

#stone #glass #sulfure #sulfur #sulfide #solid #design #decoration #mydesk #retrica @retrica_app @retricaapp

[labphoto]

Distillation of a quite interesting compound, an aryl-perfluoroalkyl disulfide. 

Trifluoromethyl disulfides are important as precursors of biologically active trifluoromethyl thiosulfonates and important parts of molecules being developed for modern medicinal chemistry. Good point: I recently found a cheap and well scalable method for the preparation of this functional group.

[thesilverforge]

http://thesilverforge.com/cleaning-silver/

Cleaning Silver

[magnieto92]

ansiedad.