Successfully reported this slideshow.
We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. You can change your ad preferences anytime.



Published on


  1. 1. 27CoCOBALTO- COBALTMASS: 58.933195 u1s22s22p63s23p64s23d7MELTING POINT: 1768 KBOILING POINT: 3200 KDENSITY: 8.90 g·cm−3DISCOVERY: 1735 (Georg Brandt)Cobalt-based blue pigments (cobalt blue) have been used since ancienttimes for jewelry and paints, and to impart a distinctive blue tint to glass.Today, some cobalt is produced specifically from various metallic-lusteredores, of copper and nickel mining. Cobalt is used in the preparationof magnetic, wear-resistant and high-strength alloys. Cobalt silicate andcobalt(II) aluminate give a distinctive deep blue colorto glass, smalt, ceramics, inks... Cobalt occurs naturally as only one stableisotope, cobalt-59. Cobalt-60 is a commercially important radioisotope, usedas a radioactive tracer and in the production of gamma rays.