The International Programme on Chemical Safety (IPCS), established in 1980, is a joint venture of the United Nations Environment Programme (UNEP), the International Labour Organization (ILO), and the World Health Organization (WHO). The overall objectives of the IPCS are to establish the scientific basis for assessment of the risk to human health and the environment from exposure to chemicals, ...

1 Department of Physics, Faculty of Art and Sciences, Celal Bayar University, Muradiye, Manisa, Turkey. 2 Department of Physics Education, Education of Faculty, Erzincan University, 24030, Erzincan, Turkey. 3 Department of Physics, Faculty of Art and Sciences, Yildiz Technical University, Davutpaşa, 34220, Istanbul, Turkey. 4 Department of Industrial Physics, Institute of Sciences, Istanbul Com...

Barium (Ba) with CAS number 513-77-9 and atomic number 56 is a soft silvery metallic alkaline earth metal. It has a high chemical reactivity and is never found in nature as a free element. It is highly toxic upon acute and chronic exposures (Bhoelan et al., 2014). Barium has been tested for its toxicity in different studies (Llugany et al., 2000; Langdon, 1994; Akinfieva and Gerasimova, 1984). ...

Although it has been known for more than a century that plants are able to extract appreciable amounts of the relatively insoluble compounds of barium contained in soils, very little scientific investigation has been made to determine whether or not the compounds of this element have any specific function in the vegetable economy. Because compounds of barium are poisonous when taken into the an...

Barium titanate is a member of a large family of compounds with the general formula ABO3 called perovskites, as the crystal size of barium titanate increases and at critical crystalline size crystal structure of barium titanate transformed from cubic to tetragonal. Transformation of crystal structure is also take place at Curi temperature. Cubic structure show paramagenatic behavior while tetra...

Although there has been significant interest in the develop ment of environmentally friendly pyrotechnics, the develop ment of cost effective barium free green light emitting pyro technic formulations has remained elusive. Many barium compounds are human health hazards, and recent work by Steinhauser has shown that barium ores as raw materials may contain radioactive radium. Recent papers by Kl...