S: My First Mixbook!
BC: Pure cobalt is a steel-gray, shiny, hard metal that is insoluble in water
1: Cobalt is a brittle, hard, transition metal with magnetic properties similar tot hose of iron.
2: Cobalt is a natural element found throughout the environment.
3: Cobalt has also been used a treatment for anemia, because it stimulates red blood cell production.
4: Limited data are available on the carcinogenic effects of cobalt.
5: Cobalt can be measured in the urine and the blood, for periods up to a few days after the exposure.
6: Cobalt is used to make superalloys (alloys that maintain their strength at high tempertures approaching their melting points) and in pigment manufacture.
7: A study found average cobalt levels in drinking water of 2 micrograms per liter, but values up to 107 g/L have been reported. The average daily intake of cobalt from food is estimated to be 5 to 40.