{"id":9525,"date":"2025-03-07T12:15:25","date_gmt":"2025-03-07T12:15:25","guid":{"rendered":"https:\/\/vivalr.com\/product\/9525.html"},"modified":"2025-03-07T12:39:19","modified_gmt":"2025-03-07T12:39:19","slug":"high-quality-cresol-red-cas-1733-12-6-with-good-price","status":"publish","type":"product","link":"https:\/\/vivalr.com\/pt\/product\/9525.html","title":{"rendered":"Vermelho Cresol de Alta Qualidade CAS 1733-12-6 Com Bom Pre\u00e7o"},"content":{"rendered":"<h1>Guia do utilizador: Vermelho Cresol de Alta Qualidade CAS 1733-12-6 Com Bom Pre\u00e7o<\/h1>\n<h2>\u00cdndice<\/h2>\n<ul>\n<li><a href=\"#basic_info\">Informa\u00e7\u00f5es e par\u00e2metros b\u00e1sicos<\/a><\/li>\n<li><a href=\"#uses\">Utiliza\u00e7\u00f5es do vermelho de cresol<\/a><\/li>\n<li><a href=\"#usage\">Como utilizar o vermelho de cresol<\/a><\/li>\n<li><a href=\"#case_study\">Estudos de casos de utiliza\u00e7\u00e3o<\/a><\/li>\n<li><a href=\"#contact\">Informa\u00e7\u00f5es de contacto<\/a><\/li>\n<\/ul>\n<h2 id=\"basic_info\">Informa\u00e7\u00f5es e par\u00e2metros b\u00e1sicos<\/h2>\n<p>O Vermelho Cresol (CAS 1733-12-6) \u00e9 um composto qu\u00edmico de alta qualidade que oferece um excelente valor pelo seu pre\u00e7o. Tem uma f\u00f3rmula molecular de C\u2082\u2081H\u2081\u2088O\u2085S. O composto apresenta-se tipicamente como um p\u00f3 vermelho escuro ou castanho. \u00c9 moderadamente sol\u00favel em \u00e1gua, mas mais sol\u00favel em etanol e outros solventes org\u00e2nicos.<\/p>\n<p>O ponto de fus\u00e3o do Vermelho de Cresol \u00e9 de cerca de 295 - 300 \u00b0C. A sua gama de pH para a mudan\u00e7a de cor \u00e9 de 7,2 (amarelo) a 8,8 (vermelho). Esta propriedade torna-o um indicador de pH \u00fatil em v\u00e1rias aplica\u00e7\u00f5es laboratoriais e industriais. <\/p>\n<h2 id=\"uses\">Utiliza\u00e7\u00f5es do vermelho de cresol<\/h2>\n<p>Uma das principais utiliza\u00e7\u00f5es do Vermelho de Cresol \u00e9 como indicador de pH em experi\u00eancias de titula\u00e7\u00e3o. Nas titula\u00e7\u00f5es \u00e1cido-base, ajuda os qu\u00edmicos a determinar com precis\u00e3o o ponto final da rea\u00e7\u00e3o. Por exemplo, numa titula\u00e7\u00e3o de uma base fraca com um \u00e1cido forte, o Vermelho de Cresol pode sinalizar quando o pH da solu\u00e7\u00e3o atinge o intervalo adequado, mudando de cor.<\/p>\n<p>\u00c9 tamb\u00e9m utilizado em microbiologia. Nos meios de cultura, o Vermelho de Cresol pode indicar altera\u00e7\u00f5es no pH devido \u00e0s actividades metab\u00f3licas dos microrganismos. Se os microrganismos produzirem subprodutos \u00e1cidos ou b\u00e1sicos, a cor do meio contendo Vermelho de Cresol altera-se, permitindo aos investigadores monitorizar o crescimento e o estado metab\u00f3lico das culturas.<\/p>\n<p>No dom\u00ednio das ci\u00eancias ambientais, o Vermelho Cresol pode ser utilizado para medir o pH de massas de \u00e1gua naturais, tais como lagos, rios e \u00e1guas subterr\u00e2neas. Ao adicionar uma pequena quantidade de Vermelho Cresol a uma amostra de \u00e1gua, os cientistas podem avaliar rapidamente se a \u00e1gua \u00e9 \u00e1cida, neutra ou b\u00e1sica.<\/p>\n<h2 id=\"usage\">Como utilizar o vermelho de cresol<\/h2>\n<p>Para utilizar o vermelho de Cresol como indicador de pH na titula\u00e7\u00e3o, preparar primeiro uma solu\u00e7\u00e3o-m\u00e3e. Dissolver uma quantidade apropriada de Vermelho de Cresol em etanol ou num solvente adequado, de acordo com os requisitos experimentais. De seguida, adicionar algumas gotas da solu\u00e7\u00e3o indicadora \u00e0 solu\u00e7\u00e3o da amostra antes de iniciar a titula\u00e7\u00e3o. <\/p>\n<p>Durante o processo de titula\u00e7\u00e3o, adicionar lentamente o titulante enquanto se agita continuamente a amostra. Observar a mudan\u00e7a de cor da solu\u00e7\u00e3o. Quando a cor muda da cor inicial (amarelo em solu\u00e7\u00f5es \u00e1cidas) para a cor final (vermelho em solu\u00e7\u00f5es b\u00e1sicas), o ponto final da titula\u00e7\u00e3o \u00e9 atingido.<\/p>\n<p>Para aplica\u00e7\u00f5es microbiol\u00f3gicas, adicionar Vermelho de Cresol ao meio de cultura durante a sua prepara\u00e7\u00e3o. Certificar-se de que est\u00e1 uniformemente distribu\u00eddo no meio. Depois de inocular os microrganismos, incubar a cultura. Monitorizar a mudan\u00e7a de cor do meio ao longo do tempo para estudar os processos metab\u00f3licos dos microrganismos.<\/p>\n<h2 id=\"case_study\">Estudos de casos de utiliza\u00e7\u00e3o<\/h2>\n<p>Caso 1: Experi\u00eancia de titula\u00e7\u00e3o em laborat\u00f3rio<br \/>\n  Num laborat\u00f3rio de qu\u00edmica, um aluno foi incumbido de determinar a concentra\u00e7\u00e3o de uma solu\u00e7\u00e3o de hidr\u00f3xido de s\u00f3dio. Utilizaram o vermelho Cresol como indicador de pH. Ao adicionar cuidadosamente uma solu\u00e7\u00e3o de \u00e1cido clor\u00eddrico \u00e0 amostra de hidr\u00f3xido de s\u00f3dio, o aluno observou a mudan\u00e7a de cor de vermelho (b\u00e1sico) para amarelo (\u00e1cido). Utilizando o volume de \u00e1cido clor\u00eddrico adicionado no ponto final e a concentra\u00e7\u00e3o conhecida de \u00e1cido clor\u00eddrico, o aluno foi capaz de calcular com exatid\u00e3o a concentra\u00e7\u00e3o da solu\u00e7\u00e3o de hidr\u00f3xido de s\u00f3dio.<\/p>\n<p>Caso 2: Investiga\u00e7\u00e3o microbiol\u00f3gica<br \/>\n  Uma equipa de investiga\u00e7\u00e3o estava a estudar o crescimento de bact\u00e9rias do \u00e1cido l\u00e1tico num meio de cultura \u00e0 base de lactic\u00ednios. Adicionaram Vermelho Cresol ao meio. \u00c0 medida que as bact\u00e9rias do \u00e1cido l\u00e1tico cresciam e produziam \u00e1cido l\u00e1tico, o pH do meio diminu\u00eda. A cor do meio mudou de vermelho para amarelo, indicando a produ\u00e7\u00e3o de \u00e1cido. Isto permitiu aos investigadores seguir a cin\u00e9tica de crescimento e a atividade metab\u00f3lica das bact\u00e9rias do \u00e1cido l\u00e1tico.<\/p>\n<h2 id=\"contact\">Informa\u00e7\u00f5es de contacto<\/h2>\n<p>Se tiver alguma d\u00favida ou precisar de mais informa\u00e7\u00f5es sobre Vermelho Cresol de Alta Qualidade CAS 1733 - 12 - 6, n\u00e3o hesite em contactar-nos. Pode contactar-nos por correio eletr\u00f3nico para info@vivalr.com ou por telefone para (86) 15866781826.<\/p>","protected":false},"excerpt":{"rendered":"<p>User Guide: High Quality Cresol Red CAS 1733-12-6 With Good Price Table of Contents Basic Information and Parameters Uses of Cresol Red How to Use Cresol Red Usage Case Studies Contact Information Basic Information and Parameters Cresol Red (CAS 1733-12-6) is a high - quality chemical compound that offers excellent value for its price. It [&hellip;]<\/p>","protected":false},"featured_media":25817,"comment_status":"closed","ping_status":"open","template":"","meta":[],"product_brand":[],"product_cat":[15],"product_tag":[],"class_list":{"0":"post-9525","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-uncategorized","8":"first","9":"instock","10":"product-type-simple"},"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v24.4 (Yoast SEO v27.4) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>High Quality Cresol Red CAS 1733-12-6 With Good Price - Welcome to VIVALR- Your Trusted Source for Chemical Raw Materials\uff01<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/vivalr.com\/pt\/product\/9525.html\" \/>\n<meta property=\"og:locale\" content=\"pt_PT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"High Quality Cresol Red CAS 1733-12-6 With Good Price\" \/>\n<meta property=\"og:description\" content=\"User Guide: High Quality Cresol Red CAS 1733-12-6 With Good Price Table of Contents Basic Information and Parameters Uses of Cresol Red How to Use Cresol Red Usage Case Studies Contact Information Basic Information and Parameters Cresol Red (CAS 1733-12-6) is a high - quality chemical compound that offers excellent value for its price. 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