The dissolution of metallic nickel in artificial sweat.
The dissolution of neutron-irradiated metallic nickel in an artificial sweat formulation has been studied. Variations in dissolution rate were found over a pH range of 3.5 to 6.5, a temperature range of 10 to 40 degrees C and for times up to 6 h. The presence of oxygen increases the dissolution rate markedly. Typical dissolution rates at 30 degrees C vary from 2 X 10(-7) g Ni X cm-2 X min-1 at a pH of 3.5, to 1 X 10(-9) g Ni X cm-2 X min-1 at a pH of 6. The relevance of the data to clinical aspects of nickel dermatitis is discussed.
D003877:Dermatitis, Contact / Q000378:metabolism; D005260:Female; D006801:Humans; D006863:Hydrogen-Ion Concentration; D008297:Male; D009502:Neutrons; D009532:Nickel / Q000378:metabolism*; D010100:Oxygen; D011868:Radioisotopes / Q000378:metabolism; D012995:Solubility; D013542:Sweat / Q000378:metabolism*
D011868:Radioisotopes; D009532:Nickel; D010100:Oxygen