\documentclass[10pt,a4paper]{article}
\usepackage[ansinew]{inputenc}
\usepackage[portuges]{babel}
\usepackage{pgf-PeriodicTable}
\usepackage[active,tightpage]{preview}
\PreviewEnvironment{tikzpicture}
\setlength\PreviewBorder{1pt}%
\begin{document}
\usefont{T1}{verdana}{m}{n}%
\pagestyle{empty}\noindent%
\vbox{\tikz{\pgfPTcolorSchemeInfo}}%
\end{document}

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