1.0Baghete Polistiren MARCUhttps://riz.ro/wpproffulhttps://riz.ro/wp/author/profful/Seleniu - Baghete Polistiren MARCUrich600338<blockquote class="wp-embedded-content" data-secret="mLqrCOg33W"><a href="https://riz.ro/wp/2015/05/18/seleniu/">Seleniu</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://riz.ro/wp/2015/05/18/seleniu/embed/#?secret=mLqrCOg33W" width="600" height="338" title="„Seleniu” – Baghete Polistiren MARCU" data-secret="mLqrCOg33W" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe><script type="text/javascript">
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Seleniul (Seleniul elementar) Stare naturala si obtinere Seleniul insoteste, in cantitati mici, sulful, in zacamintele de sulfuri. La arderea acestora, in fabricile de acid sulfuric, seleniul se depune ca element, in camerele de desprafuire si in namolul de pe fundul