{"id":3191,"date":"2025-05-22T09:57:55","date_gmt":"2025-05-22T01:57:55","guid":{"rendered":"https:\/\/calcium-carbonate.epic-powder.com\/?p=3191"},"modified":"2025-05-22T09:57:58","modified_gmt":"2025-05-22T01:57:58","slug":"what-is-high-purity-calcium-carbonate","status":"publish","type":"post","link":"https:\/\/calcium-carbonate.epic-powder.com\/pt\/what-is-high-purity-calcium-carbonate\/","title":{"rendered":"O que \u00e9 carbonato de c\u00e1lcio de alta pureza?"},"content":{"rendered":"<p>O que \u00e9 alta pureza <a href=\"https:\/\/calcium-carbonate.epic-powder.com\/pt\/ultrafine-powder-dry-grinding\/\">carbonato de c\u00e1lcio<\/a>Na fabrica\u00e7\u00e3o tradicional, \u00e9 um conceito vago. Por exemplo, com baixo teor de impurezas de ferro e carbonato de c\u00e1lcio 98%, alguns podem cham\u00e1-lo de carbonato de c\u00e1lcio de alta pureza. Mas em aplica\u00e7\u00f5es de materiais de alta qualidade, isso est\u00e1 longe de atender aos padr\u00f5es de alta pureza.<a href=\"https:\/\/calcium-carbonate.epic-powder.com\/pt\/machines\/ball-mill\/\"> Carbonato de c\u00e1lcio de alta pureza<\/a> \u00c9 amplamente utilizado em componentes eletr\u00f4nicos, capacitores, produtos farmac\u00eauticos, suplementos alimentares, cosm\u00e9ticos, cer\u00e2micas, vidros \u00f3pticos, materiais fluorescentes e reagentes de laborat\u00f3rio. Observa\u00e7\u00e3o: O carbonato de c\u00e1lcio de alta pureza discutido aqui refere-se ao c\u00e1lcio leve e ao nanoc\u00e1lcio. Seu tamanho de part\u00edcula varia de dezenas de nan\u00f4metros a dois m\u00edcrons, com formato esf\u00e9rico ou quase esf\u00e9rico.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img fetchpriority=\"high\" decoding=\"async\" width=\"750\" height=\"502\" src=\"https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2025\/05\/High-purity-Calcium-Carbonate.webp\" alt=\"Carbonato de c\u00e1lcio de alta pureza\" class=\"wp-image-3192\" srcset=\"https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2025\/05\/High-purity-Calcium-Carbonate.webp 750w, https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2025\/05\/High-purity-Calcium-Carbonate-300x201.webp 300w, https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2025\/05\/High-purity-Calcium-Carbonate-18x12.webp 18w\" sizes=\"(max-width: 750px) 100vw, 750px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Defini\u00e7\u00e3o e classifica\u00e7\u00e3o de alta pureza <a href=\"https:\/\/calcium-carbonate.epic-powder.com\/pt\/astra-portfolio\/grinding-and-classifying-system-for-the-production-of-calcium-carbonate\/\">carbonato de c\u00e1lcio<\/a><\/h2>\n\n\n\n<p>Tomando como exemplo a classifica\u00e7\u00e3o de carbonatos de c\u00e1lcio de alta pureza de uma empresa:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>O carbonato de c\u00e1lcio 93.0% \u00e9 de grau industrial<\/li>\n\n\n\n<li>96.0% \u00e9 um a\u00e7o de grau especial<\/li>\n\n\n\n<li>98.0% \u00e9 de grau cer\u00e2mico<\/li>\n\n\n\n<li>99.0% \u00e9 de grau fluorescente<\/li>\n\n\n\n<li>99.8% \u00e9 de grau \u00f3ptico<\/li>\n\n\n\n<li>99.99% \u00e9 de alta pureza.<\/li>\n<\/ul>\n\n\n\n<p>De acordo com os padr\u00f5es de pureza qu\u00edmica, o carbonato de c\u00e1lcio tamb\u00e9m pode ser classificado em:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>99,8% (GR) pureza superior<\/li>\n\n\n\n<li>99,7% (AR) pureza anal\u00edtica<\/li>\n\n\n\n<li>\u226599,5% (CP) pureza qu\u00edmica.<\/li>\n<\/ul>\n\n\n\n<p><br>Al\u00e9m disso, os requisitos de pureza variam em aplica\u00e7\u00f5es pr\u00e1ticas, como:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>99.0% para materiais farmac\u00eauticos<\/li>\n\n\n\n<li>99,5% para materiais eletr\u00f4nicos<\/li>\n\n\n\n<li>99.3% para reagentes qu\u00edmicos<\/li>\n\n\n\n<li>99.99% para s\u00edntese de sais de c\u00e1lcio de alta pureza.<\/li>\n<\/ul>\n\n\n\n<p>Para atingir alta pureza em carbonato de c\u00e1lcio, o controle de impurezas \u00e9 crucial, pois elas afetam diretamente a pureza e o desempenho da aplica\u00e7\u00e3o. A an\u00e1lise da composi\u00e7\u00e3o do calc\u00e1rio mostra:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>S\u00edlica (SiO\u2082) 0,07-1%<\/li>\n\n\n\n<li>Alumina (Al\u2082O\u2083) 0,02-1%<\/li>\n\n\n\n<li>\u00d3xido de ferro (Fe\u2082O\u2083) 0,03-1%<\/li>\n\n\n\n<li>\u00d3xido de c\u00e1lcio (CaO) 48-55.22%<\/li>\n\n\n\n<li>\u00d3xido de magn\u00e9sio (MgO) 0,08-1%,<\/li>\n<\/ul>\n\n\n\n<p>Assim como v\u00e1rias impurezas met\u00e1licas, como chumbo, b\u00e1rio e estr\u00f4ncio.<br>Al\u00e9m disso, durante o processo de prepara\u00e7\u00e3o do carbonato de c\u00e1lcio, aditivos qu\u00edmicos e equipamentos de processamento podem introduzir impurezas adicionais, que devem ser minimizadas.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"750\" height=\"750\" src=\"https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2025\/04\/air-jet-mill-5.webp\" alt=\"moinho de jato de ar 5\" class=\"wp-image-3121\" srcset=\"https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2025\/04\/air-jet-mill-5.webp 750w, https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2025\/04\/air-jet-mill-5-300x300.webp 300w, https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2025\/04\/air-jet-mill-5-150x150.webp 150w, https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2025\/04\/air-jet-mill-5-12x12.webp 12w\" sizes=\"(max-width: 750px) 100vw, 750px\" \/><figcaption class=\"wp-element-caption\">moinho de jato de ar 5<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Aplica\u00e7\u00e3o de Carbonato de C\u00e1lcio de Alta Pureza<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Reagentes e Materiais<\/h3>\n\n\n\n<p>Reagentes de carbonato de c\u00e1lcio de alta pureza s\u00e3o utilizados na determina\u00e7\u00e3o de halog\u00eanios em rea\u00e7\u00f5es de compostos org\u00e2nicos, an\u00e1lise de \u00e1gua, determina\u00e7\u00e3o de f\u00f3sforo e na decomposi\u00e7\u00e3o de silicatos com cloreto de am\u00f4nio. S\u00e3o tamb\u00e9m utilizados no preparo de solu\u00e7\u00f5es de cloreto de c\u00e1lcio para titula\u00e7\u00e3o de solu\u00e7\u00f5es de sab\u00e3o e para cultura de c\u00e9lulas de insetos, entre outras aplica\u00e7\u00f5es.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Pureza superior (99,8%), tamb\u00e9m conhecido como reagente de primeira qualidade ou garantido. Possui a mais alta pureza e o menor teor de impurezas, sendo adequado para trabalhos anal\u00edticos cr\u00edticos e precisos, al\u00e9m de pesquisas cient\u00edficas.<\/li>\n\n\n\n<li>A pureza anal\u00edtica (99,7%) tamb\u00e9m \u00e9 conhecida como reagente de segunda classe. Sua pureza \u00e9 ligeiramente inferior \u00e0 pureza superior e \u00e9 adequada para an\u00e1lises importantes e pesquisas em geral.<\/li>\n\n\n\n<li>A pureza qu\u00edmica (\u226599,5%) tamb\u00e9m \u00e9 conhecida como reagente de terceira classe. Sua pureza \u00e9 significativamente menor que a anal\u00edtica e \u00e9 utilizada para an\u00e1lises gerais na ind\u00fastria, minera\u00e7\u00e3o e escolas.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Materiais Eletr\u00f4nicos<\/h3>\n\n\n\n<p>O carbonato de c\u00e1lcio de grau eletr\u00f4nico comum pode ser dividido em duas categorias: grau superior (pureza de 99,5%) e primeiro grau (pureza de 99,3%). O carbonato de c\u00e1lcio de alta pureza \u00e9 usado como enchimento em materiais eletr\u00f4nicos, ajudando a reduzir a depend\u00eancia da constante diel\u00e9trica em rela\u00e7\u00e3o \u00e0 temperatura, alterar a temperatura de Curie, melhorar a resist\u00eancia \u00e0 tens\u00e3o e aprimorar as propriedades ferroel\u00e9tricas. Pode ser usado em prote\u00e7\u00e3o limitadora de corrente, desmagnetiza\u00e7\u00e3o, partida, elementos de aquecimento (PTC), capacitores cer\u00e2micos multicamadas (MLCC), componentes de micro-ondas e componentes piezoel\u00e9tricos\/piezoresistivos. Tamb\u00e9m \u00e9 usado como refinador de gr\u00e3os para titanato de b\u00e1rio em chips cer\u00e2micos, em materiais de capacitores de filme back-end e como reagentes eletr\u00f4nicos.<br>Pesquisas indicam que quando o teor de impurezas do carbonato de c\u00e1lcio \u00e9 reduzido para 0,01-10 ppm ou at\u00e9 mesmo para o n\u00edvel de ppb, com impurezas met\u00e1licas abaixo de 1 ppb e n\u00edveis de poeira de 0-2 ppb, o carbonato de c\u00e1lcio \u00e9 adequado para processamento de circuitos integrados de 0,35-0,8 m\u00edcrons.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Produtos qu\u00edmicos de alta pureza<\/h3>\n\n\n\n<p>De acordo com a literatura, o carbonato de c\u00e1lcio com pureza de 99,99% \u00e9 amplamente utilizado em materiais monocristais de fluoreto de c\u00e1lcio \u00f3ptico de alta pureza, materiais fluorescentes, cargas eletr\u00f4nicas, sais de c\u00e1lcio de alta pureza e outros materiais b\u00e1sicos. Entre estes, os materiais monocristais de fluoreto de c\u00e1lcio \u00f3ptico de alta pureza (99,99%) s\u00e3o sintetizados utilizando carbonato de c\u00e1lcio de alta pureza como mat\u00e9ria-prima, e a pureza dos carbonatos de c\u00e1lcio determina a pureza do fluoreto de c\u00e1lcio.<br>Al\u00e9m do fluoreto de c\u00e1lcio \u00f3ptico, o carbonato de c\u00e1lcio de alta pureza tamb\u00e9m \u00e9 usado diretamente como fortificante de c\u00e1lcio ou como intermedi\u00e1rio na produ\u00e7\u00e3o de sais de c\u00e1lcio de alta pureza, como o citrato de c\u00e1lcio. Nessas aplica\u00e7\u00f5es, o teor de impurezas de metais pesados nocivos \u00e9 um requisito particularmente cr\u00edtico, e os padr\u00f5es de pureza ainda n\u00e3o foram unificados.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Materiais \u00d3pticos<\/h3>\n\n\n\n<p>Algumas empresas classificam o carbonato de c\u00e1lcio com pureza de 99,8% como grau \u00f3ptico, podendo ser usado para preparar vidros \u00f3pticos de neod\u00edmio e materiais fluorescentes. Seu teor de impurezas \u00e9 extremamente baixo. Por exemplo, os dados de produto de uma empresa mostram:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>S\u00f3dio e pot\u00e1ssio: 0,002%<\/li>\n\n\n\n<li>Magn\u00e9sio: 0,02%<\/li>\n\n\n\n<li>Sulfato: 0,01%<\/li>\n\n\n\n<li>Ferro: 0,0005%<\/li>\n\n\n\n<li>Cloro: 0,01%, que \u00e9 muito menor que o carbonato de c\u00e1lcio comum.<\/li>\n<\/ul>\n\n\n\n<p>Al\u00e9m dos materiais em p\u00f3 de carbonato de c\u00e1lcio de alta pureza, os cristais de spar island\u00eas (calcita transparente) possuem uma composi\u00e7\u00e3o qu\u00edmica pura. Suas propriedades de birrefring\u00eancia e polariza\u00e7\u00e3o s\u00e3o not\u00e1veis, tornando-os adequados para a fabrica\u00e7\u00e3o de diversos dispositivos polarizadores, dispositivos espectrosc\u00f3picos e isoladores \u00f3pticos, com excelente desempenho.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><a href=\"https:\/\/calcium-carbonate.epic-powder.com\/pt\/about\/\">Conclus\u00e3o<\/a><\/h2>\n\n\n\n<p>O carbonato de c\u00e1lcio de alta pureza est\u00e1 posicionado em um mercado mais sofisticado em compara\u00e7\u00e3o com os carbonatos de c\u00e1lcio comuns. \u00c9 utilizado em quantidades menores por aplica\u00e7\u00e3o, tem um pre\u00e7o unit\u00e1rio mais alto e requer processos de produ\u00e7\u00e3o mais complexos. Atualmente, existem menos empresas neste setor com capacidades de produ\u00e7\u00e3o menores, e a cadeia produtiva \u00e9 significativamente diferente da do p\u00f3 de c\u00e1lcio tradicional.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><a href=\"https:\/\/calcium-carbonate.epic-powder.com\/pt\/contact\/\">P\u00f3 \u00e9pico<\/a><\/h2>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe title=\"Moinho de jato de ar \u00e0 venda, moinho de jato para carboneto de sil\u00edcio, p\u00f3 D97 de 13 m\u00edcrons, m\u00e1quinas para p\u00f3 EPIC\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/wAy3TuOHudE?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n\n\n<p>Epic Powder, com mais de 20 anos de experi\u00eancia na ind\u00fastria de p\u00f3s ultrafinos. Promovemos ativamente o desenvolvimento futuro de p\u00f3s ultrafinos, com foco em processos de britagem, moagem, classifica\u00e7\u00e3o e modifica\u00e7\u00e3o de p\u00f3s ultrafinos. Entre em contato conosco para uma consulta gratuita e solu\u00e7\u00f5es personalizadas! Nossa equipe de especialistas se dedica a fornecer produtos e servi\u00e7os de alta qualidade para maximizar o valor do seu processamento de p\u00f3s. Epic Powder \u2014 Seu especialista confi\u00e1vel em processamento de p\u00f3s!<\/p>\n\n\n\n<div class=\"wp-block-contact-form-7-contact-form-selector\">\n<div class=\"wpcf7 no-js\" id=\"wpcf7-f16-o1\" lang=\"zh-CN\" dir=\"ltr\" data-wpcf7-id=\"16\">\n<div class=\"screen-reader-response\"><p role=\"status\" aria-live=\"polite\" aria-atomic=\"true\"><\/p> <ul><\/ul><\/div>\n<form action=\"\/pt\/wp-json\/wp\/v2\/posts\/3191#wpcf7-f16-o1\" method=\"post\" class=\"wpcf7-form init\" aria-label=\"\u7559\u8a00\u8868\u5355\" novalidate=\"novalidate\" data-status=\"init\" data-trp-original-action=\"\/pt\/wp-json\/wp\/v2\/posts\/3191#wpcf7-f16-o1\">\n<fieldset class=\"hidden-fields-container\"><input type=\"hidden\" name=\"_wpcf7\" value=\"16\" \/><input type=\"hidden\" name=\"_wpcf7_version\" value=\"6.1.3\" \/><input type=\"hidden\" name=\"_wpcf7_locale\" value=\"zh_CN\" \/><input type=\"hidden\" name=\"_wpcf7_unit_tag\" value=\"wpcf7-f16-o1\" \/><input type=\"hidden\" name=\"_wpcf7_container_post\" value=\"0\" \/><input type=\"hidden\" name=\"_wpcf7_posted_data_hash\" value=\"\" \/>\n<\/fieldset>\n<div class=\"keen-form\">\n\t<div class=\"one-half\">\n\t\t<p><span class=\"wpcf7-form-control-wrap\" data-name=\"your-name\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-text wpcf7-validates-as-required\" aria-required=\"true\" aria-invalid=\"false\" placeholder=\"Seu nome*\" value=\"\" type=\"text\" name=\"your-name\" \/><\/span>\n\t\t<\/p>\n\t<\/div>\n\t<div class=\"one-half last\">\n\t\t<p><span class=\"wpcf7-form-control-wrap\" data-name=\"your-email\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-email wpcf7-validates-as-required wpcf7-text wpcf7-validates-as-email\" aria-required=\"true\" aria-invalid=\"false\" placeholder=\"Seu email*\" value=\"\" type=\"email\" name=\"your-email\" \/><\/span>\n\t\t<\/p>\n\t<\/div>\n\t<div class=\"one-half\">\n\t\t<p><span class=\"wpcf7-form-control-wrap\" data-name=\"pnone\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-tel wpcf7-validates-as-required wpcf7-text wpcf7-validates-as-tel\" aria-required=\"true\" aria-invalid=\"false\" placeholder=\"Seu Pnone ou Whatsapp*\" value=\"\" type=\"tel\" name=\"pnone\" \/><\/span>\n\t\t<\/p>\n\t<\/div>\n\t<div class=\"one-half last\">\n\t\t<p><span class=\"wpcf7-form-control-wrap\" data-name=\"your-subject\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-text\" aria-invalid=\"false\" placeholder=\"Sua empresa\" value=\"\" type=\"text\" name=\"your-subject\" \/><\/span>\n\t\t<\/p>\n\t<\/div>\n\t<div>\n\t\t<p><span class=\"wpcf7-form-control-wrap\" data-name=\"your-message\"><textarea cols=\"40\" rows=\"3\" maxlength=\"2000\" class=\"wpcf7-form-control wpcf7-textarea\" aria-invalid=\"false\" placeholder=\"Sua mensagem\" name=\"your-message\"><\/textarea><\/span>\n\t\t<\/p>\n\t<\/div>\n\t<div>\n\t\t<p><input class=\"wpcf7-form-control wpcf7-submit has-spinner\" type=\"submit\" value=\"Enviar\" \/>\n\t\t<\/p>\n\t<\/div>\n<\/div>\n<style>\n.keen-form div{margin-bottom:5px;}\n.keen-form div p{margin-bottom:0px !important;}\n.one-half,.one-third {\n position: relative;\n margin-right: 4%;\n float: left;\n z-index: 99;\n}\n.one-half { width: 40%; }\n.one-third { width: 30.66%; }\n.last {\n margin-right: 0 !important;\n clear: right;\nwidth: 40%;\n}\n@media only screen and (max-width: 767px) {\n .one-half, .one-third {\n width: 90%;\n margin-right: 0;\n }\n}\n<\/style><div class=\"wpcf7-response-output\" aria-hidden=\"true\"><\/div>\n<input type=\"hidden\" name=\"trp-form-language\" value=\"pt\"\/><\/form>\n<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>O que \u00e9 carbonato de c\u00e1lcio de alta pureza? Na fabrica\u00e7\u00e3o tradicional, \u00e9 um conceito vago. Por exemplo, com baixo teor de impurezas de ferro e carbonato de c\u00e1lcio 98%, alguns podem cham\u00e1-lo de carbonato de c\u00e1lcio de alta pureza. Mas, em aplica\u00e7\u00f5es de materiais de alta qualidade, isso est\u00e1 longe de atender aos padr\u00f5es de alta pureza. O carbonato de c\u00e1lcio de alta pureza \u00e9 amplamente utilizado em componentes eletr\u00f4nicos, capacitores, produtos farmac\u00eauticos, alimentos [\u2026]<\/p>","protected":false},"author":1,"featured_media":3192,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center 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