{"id":4287,"date":"2024-02-09T00:21:33","date_gmt":"2024-02-08T23:21:33","guid":{"rendered":"https:\/\/www.serraciments.com\/?p=4287"},"modified":"2025-01-29T16:50:13","modified_gmt":"2025-01-29T15:50:13","slug":"origen-oxids-de-ferro","status":"publish","type":"post","link":"https:\/\/www.serraciments.com\/ca\/2024\/02\/09\/origen-oxids-de-ferro\/","title":{"rendered":"Els or\u00edgens dels \u00f2xids de ferro"},"content":{"rendered":"<p>Els \u00f2xids de ferro s&#8217;han utilitzat des de temps prehist\u00f2rics. Els \u00e9ssers humans de la prehist\u00f2ria recol\u00b7lectaven minerals de la terra, els trituraven i pulveritzaven per obtenir pols, i despr\u00e9s mesclaven el pols amb diferents subst\u00e0ncies per crear pigments org\u00e0nics i utilitzar-los com a pintures. Aquests pigments s&#8217;aplicaven a diverses superf\u00edcies, incloent-hi parets de coves, per crear art rupestre i decoraci\u00f3.<\/p>\n<p>Un dels principals components en les pintures \u00e9s el mineral hematites, un mineral compost d&#8217;\u00f2xid de ferro, la f\u00f3rmula del qual \u00e9s Fe2O3.<\/p>\n<p>Els pigments org\u00e0nics, que es troben a la natura, tendeixen a ser menys estables que els sint\u00e8tics, ja que s\u00f3n sensibles a la llum UV, cosa que pot causar decoloraci\u00f3 o esva\u00efment amb el temps.<\/p>\n<p>En canvi, els pigments inorg\u00e0nics, dissenyats per millorar les propietats i la durabilitat, s\u00f3n resistents a la llum, a les condicions ambientals adverses i als \u00e0lcalis del ciment. Per aquesta ra\u00f3, es prefereixen per a aplicacions que requereixen una alta estabilitat i durabilitat, com en la construcci\u00f3 i la pintura exterior.<\/p>\n<p>A l&#8217;hora d&#8217;escollir pigments per mesclar amb ciment, morter i formig\u00f3, \u00e9s important seleccionar aquells dissenyats espec\u00edficament per a aplicacions de construcci\u00f3. Els pigments inorg\u00e0nics SC Pigments es formulen per garantir l&#8217;estabilitat del color i la compatibilitat amb els materials cementosos.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>A la prehist\u00f2ria es recollien minerals de la terra, els trituraven i pulveritzaven per obtenir pigments org\u00e0nics i utilitzar-los com a pintures.<\/p>\n","protected":false},"author":1,"featured_media":5829,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-4287","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized-ca"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Els or\u00edgens dels \u00f2xids de ferro - Serra Ciments<\/title>\n<meta name=\"description\" content=\"Els \u00e9ssers humans de la prehist\u00f2ria recol\u00b7lectaven minerals de la terra, els trituraven i pulveritzaven per obtenir pols, i despr\u00e9s mesclaven el pols amb diferents subst\u00e0ncies per crear pigments org\u00e0nics i utilitzar-los com a pintures.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.serraciments.com\/ca\/2024\/02\/09\/origen-oxids-de-ferro\/\" \/>\n<meta name=\"twitter:label1\" content=\"Escrit per\" \/>\n\t<meta name=\"twitter:data1\" content=\"serradmin\" \/>\n\t<meta name=\"twitter:label2\" content=\"Temps estimat de lectura\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minuts\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.serraciments.com\\\/ca\\\/2024\\\/02\\\/09\\\/origen-oxids-de-ferro\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.serraciments.com\\\/ca\\\/2024\\\/02\\\/09\\\/origen-oxids-de-ferro\\\/\"},\"author\":{\"name\":\"serradmin\",\"@id\":\"https:\\\/\\\/www.serraciments.com\\\/es\\\/#\\\/schema\\\/person\\\/6416a40dfb292c30c0846525724dd55e\"},\"headline\":\"Els or\u00edgens dels \u00f2xids de ferro\",\"datePublished\":\"2024-02-08T23:21:33+00:00\",\"dateModified\":\"2025-01-29T15:50:13+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.serraciments.com\\\/ca\\\/2024\\\/02\\\/09\\\/origen-oxids-de-ferro\\\/\"},\"wordCount\":241,\"commentCount\":0,\"image\":{\"@id\":\"https:\\\/\\\/www.serraciments.com\\\/ca\\\/2024\\\/02\\\/09\\\/origen-oxids-de-ferro\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.serraciments.com\\\/wp-content\\\/uploads\\\/2024\\\/02\\\/pintura_oxido.jpg\",\"articleSection\":[\"Uncategorized @ca\"],\"inLanguage\":\"ca\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/www.serraciments.com\\\/ca\\\/2024\\\/02\\\/09\\\/origen-oxids-de-ferro\\\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.serraciments.com\\\/ca\\\/2024\\\/02\\\/09\\\/origen-oxids-de-ferro\\\/\",\"url\":\"https:\\\/\\\/www.serraciments.com\\\/ca\\\/2024\\\/02\\\/09\\\/origen-oxids-de-ferro\\\/\",\"name\":\"Els or\u00edgens dels \u00f2xids de ferro - 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