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[201] Oxid de plumb

Date: May 25th, 2007 | Comments : none | Categories: Colorants.
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Oxid de plumb
~~~~~~~~~~~~~
PbO
        Se obtine prin incalzirea plumbului topit intr-un curent de aer
Daca incalzirea are loc deasupra temperaturii de topire => litarga, substanta
cristalizata, de culoare rosie; iar daca temperatura este mai ridicata se
obtine masicotul, o substanta cristalizata de culoare galbena.
                            884øC
                        PbO -----> PbO
                      litarga     masicot
Se intrebuinteaza ca vopsea in pictura

 

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