{"id":19,"date":"2022-05-31T14:30:57","date_gmt":"2022-05-31T12:30:57","guid":{"rendered":"https:\/\/rwsiliciumgmbh.live-website.com\/en\/?page_id=19"},"modified":"2022-06-02T15:14:37","modified_gmt":"2022-06-02T13:14:37","slug":"classification","status":"publish","type":"page","link":"https:\/\/rwsiliciumgmbh.live-website.com\/en\/silicon\/classification\/","title":{"rendered":"Classification"},"content":{"rendered":"\n<p>Metallurgical silicon is classified according to its purity and the different percentage of the main impurities.<br>The following qualities are typical on the market:<\/p>\n\n\n\n<p><strong>Silicon&nbsp;553:<\/strong>&nbsp;iron max. 0,5 %, aluminum max. 0,5 %, calcium max. 0,3 % (standard quality)<\/p>\n\n\n\n<p><strong>Silicon&nbsp;441:<\/strong>&nbsp;iron max. 0,4 %, aluminum max. 0,4 %, calcium max. 0,1 % (refined quality)<\/p>\n\n\n\n<p><strong>Silicon<\/strong><strong>&nbsp;3303:<\/strong>&nbsp;iron max. 0,3 %, aluminum max. 0,3 %, calcium max. 0,03 % (special quality)<\/p>\n\n\n\n<p><strong>Silicon<\/strong><strong>&nbsp;2202:<\/strong>&nbsp;iron max. 0,2 %, aluminum max. 0,2 %, calcium max. 0,02 % (low iron quality)<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Metallurgical silicon is classified according to its purity and the different percentage of the main impurities.The following qualities are typical on the market: Silicon&nbsp;553:&nbsp;iron max. 0,5 %, aluminum max. 0,5 %, calcium max. 0,3 % (standard quality) Silicon&nbsp;441:&nbsp;iron max. 0,4 %, aluminum max. 0,4 %, calcium max. 0,1 % (refined quality) Silicon&nbsp;3303:&nbsp;iron max. 0,3 %, [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":511,"parent":632,"menu_order":2,"comment_status":"closed","ping_status":"closed","template":"no-title","meta":{"footnotes":""},"class_list":["post-19","page","type-page","status-publish","has-post-thumbnail","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v23.4 - 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