Cadmium Incorporation in the Bone Minerals

Sujata Panda Shanti Pandey, B. Nanda P. N. Patel and A. K. Samantray

Department of Chemistry, Rajendra College, Bolangir India.

Department of Zoology, S.G.Women's College, Rourkela - 769 004 India.

Department of Chemistry, Government College, Rourkela, 769 004 India.

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ABSTRACT:

Synthetic and natural calcium hydroxylapatites exchange calcium with cadmium. Exchange rate (i) increases with increase in Cd2+ (ii) decreases with the increase in the particle size of the bone mineral and (iii) decreases with the increase in the pH in the range 5.0 to 8.0 At 100°C, the cadmium incorporation is governed by absorption and diffusion while at 25oC it is governed by the process of adsorption only.

KEYWORDS:

Cadmium; Incorporation; Exchange rate