Sodium Hydroxide (CAS No. 62-53-3)

Leaching Kinetics of Stibnite in Sodium Hydroxide

Spherical pellets of antimony sulphide were dissolved in 1 molar sodium hydroxide solutions at different temperatures. It was found that the shrinking core with ash layer model could satisfactorily explain the dissolution process. Using this model it was found that initially the rate controlling step is a chemical reaction with activation energy of 10.2 kJ/mol. As the ash layer builds up, diffu...

TNG Technical Report no.62

IZA Discussion Paper No. 53

Inter-industry Wage Dispersion in Portugal: high but falling This paper examines the size of inter-industry wage dispersion in Portugal and compares with other countries. We find that the country has a high inter-industry wage inequality compared with the European standard. Nevertheless, the dispersion reduced over the 1980s and the early 1990s along a process of centralisation of the wage sett...

Satyagraha Vol. 53 No. 24

Satyagraha Vol. 53 No. 13