{"id":52,"date":"2025-03-07T12:05:04","date_gmt":"2025-03-07T12:05:04","guid":{"rendered":"https:\/\/vivalr.com\/product\/52.html"},"modified":"2025-03-07T12:21:18","modified_gmt":"2025-03-07T12:21:18","slug":"factory-supply-15-diphenylcarbazide-cas-140-22-7-with-best-price","status":"publish","type":"product","link":"https:\/\/vivalr.com\/es\/product\/52.html","title":{"rendered":"Fuente de la f\u00e1brica 1,5-Diphenylcarbazide CAS 140-22-7 con el mejor precio"},"content":{"rendered":"<div class=\"user-guide\">\n<h1>1,5-Difenilcarbazida (CAS 140-22-7) - Gu\u00eda completa del usuario y suministro de f\u00e1brica<\/h1>\n<p>        <!-- Table of Contents --><\/p>\n<div class=\"toc\">\n<h2>\u00cdndice<\/h2>\n<ul>\n<li><a href=\"#basic-info\">1. 1. Informaci\u00f3n b\u00e1sica<\/a><\/li>\n<li><a href=\"#applications\">2. Aplicaciones<\/a><\/li>\n<li><a href=\"#usage\">3. Instrucciones de uso<\/a><\/li>\n<li><a href=\"#case-studies\">4. Casos pr\u00e1cticos<\/a><\/li>\n<li><a href=\"#contact\">5. 5. Informaci\u00f3n de contacto<\/a><\/li>\n<\/ul><\/div>\n<p>        <!-- Basic Information --><\/p>\n<div id=\"basic-info\" class=\"section\">\n<h2>1. 1. Informaci\u00f3n b\u00e1sica<\/h2>\n<ul>\n<li><strong>N\u00famero CAS:<\/strong> 140-22-7<\/li>\n<li><strong>F\u00f3rmula molecular:<\/strong> C<sub>13<\/sub>H<sub>12<\/sub>N<sub>4<\/sub>O<\/li>\n<li><strong>Peso molecular:<\/strong> 240,26 g\/mol<\/li>\n<li><strong>Apariencia:<\/strong> Polvo cristalino entre blanco y blanquecino<\/li>\n<li><strong>Pureza:<\/strong> \u226598% (HPLC)<\/li>\n<li><strong>Almacenamiento:<\/strong> Conservar en un lugar fresco y seco, protegido de la luz y la humedad.<\/li>\n<\/ul><\/div>\n<p>        <!-- Applications --><\/p>\n<div id=\"applications\" class=\"section\">\n<h2>2. Aplicaciones<\/h2>\n<p>La 1,5-Difenilcarbazida se utiliza ampliamente en:<\/p>\n<ul>\n<li><strong>Detecci\u00f3n de metales pesados:<\/strong> Reactivo primario para la determinaci\u00f3n espectrofotom\u00e9trica de cromo (VI), mercurio (II) y plomo (II).<\/li>\n<li><strong>Vigilancia medioambiental:<\/strong> Detecta trazas de iones met\u00e1licos en el agua, el suelo y los residuos industriales.<\/li>\n<li><strong>An\u00e1lisis farmac\u00e9utico:<\/strong> Se utiliza en la valoraci\u00f3n redox y en la investigaci\u00f3n de s\u00edntesis qu\u00edmicas.<\/li>\n<li><strong>Laboratorios de investigaci\u00f3n:<\/strong> Componente clave en los estudios que implican reacciones de oxidaci\u00f3n-reducci\u00f3n y qu\u00edmica de coordinaci\u00f3n.<\/li>\n<\/ul><\/div>\n<p>        <!-- Usage Instructions --><\/p>\n<div id=\"usage\" class=\"section\">\n<h2>3. Instrucciones de uso paso a paso<\/h2>\n<ol>\n<li><strong>Preparaci\u00f3n:<\/strong> Disolver 0,1g de 1,5-Difenilcarbazida en 100mL de etanol para crear una soluci\u00f3n de 0,1%.<\/li>\n<li><strong>Reacci\u00f3n:<\/strong> A\u00f1adir la soluci\u00f3n a la muestra que contiene los iones met\u00e1licos objetivo. Ajuste el pH a 1,5-2,0 utilizando \u00e1cido sulf\u00farico para una reacci\u00f3n cromog\u00e9nica \u00f3ptima.<\/li>\n<li><strong>Medici\u00f3n:<\/strong> Utilizar un espectrofot\u00f3metro para medir la absorbancia a 540 nm (para Cr(VI)) o 490 nm (para Hg(II)).<\/li>\n<li><strong>Seguridad:<\/strong> Utilizar EPI (guantes, gafas) y trabajar en una zona bien ventilada. Evitar la inhalaci\u00f3n o el contacto directo.<\/li>\n<li><strong>Almacenamiento:<\/strong> Conservar el reactivo en un recipiente herm\u00e9tico a 2-8\u00b0C para una estabilidad a largo plazo.<\/li>\n<\/ol><\/div>\n<p>        <!-- Case Studies --><\/p>\n<div id=\"case-studies\" class=\"section\">\n<h2>4. Casos pr\u00e1cticos<\/h2>\n<h3>Caso 1: Detecci\u00f3n de cromo hexavalente en el agua<\/h3>\n<p><strong>Procedimiento:<\/strong><\/p>\n<ol>\n<li>Preparar una soluci\u00f3n de 1,5-difenilcarbazida 0,1% en etanol.<\/li>\n<li>Acidificar 50mL de muestra de agua con H<sub>2<\/sub>SO<sub>4<\/sub> a pH 1,5.<\/li>\n<li>A\u00f1adir 2mL de reactivo, mezclar y esperar 10 minutos para el desarrollo del color.<\/li>\n<li>Medir la absorbancia a 540 nm. Calcular la concentraci\u00f3n de Cr(VI) utilizando una curva de calibraci\u00f3n (l\u00edmite de detecci\u00f3n: 0,01mg\/L).<\/li>\n<\/ol>\n<h3>Caso 2: Cuantificaci\u00f3n de mercurio en muestras de suelo<\/h3>\n<ol>\n<li>Digerir 1g de tierra con HNO<sub>3<\/sub>\/HCl y filtrar.<\/li>\n<li>Ajustar el filtrado a pH 2,0, a\u00f1adir 3mL de soluci\u00f3n reactiva.<\/li>\n<li>Medir la absorbancia a 490 nm despu\u00e9s de 15 minutos. Rango lineal: 0.05-5.0mg\/kg.<\/li>\n<\/ol><\/div>\n<p>        <!-- Contact --><\/p>\n<div id=\"contact\" class=\"section\">\n<h2>5. 5. Informaci\u00f3n de contacto<\/h2>\n<p>Para consultas t\u00e9cnicas o pedidos al por mayor:<\/p>\n<ul>\n<li>Correo electr\u00f3nico: <a href=\"mailto:info@vivalr.com\">info@vivalr.com<\/a><\/li>\n<li>Tel\u00e9fono: <a href=\"tel:+8615866781826\">(86) 15866781826<\/a><\/li>\n<\/ul>\n<p><em>Nota:<\/em> S\u00edntesis personalizadas y servicios OEM disponibles. Solicite MSDS y COA por correo electr\u00f3nico.<\/p>\n<\/p><\/div>\n<\/p><\/div>","protected":false},"excerpt":{"rendered":"<p>1,5-Diphenylcarbazide (CAS 140-22-7) - Comprehensive User Guide &#038; Factory Supply Table of Contents 1. Basic Information 2. Applications 3. Usage Instructions 4. Usage Case Studies 5. Contact Information 1. Basic Information CAS Number: 140-22-7 Molecular Formula: C13H12N4O Molecular Weight: 240.26 g\/mol Appearance: White to off-white crystalline powder Purity: \u226598% (HPLC) Storage: Store in a cool, [&hellip;]<\/p>","protected":false},"featured_media":21210,"comment_status":"closed","ping_status":"open","template":"","meta":[],"product_brand":[],"product_cat":[15],"product_tag":[],"class_list":{"0":"post-52","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 v25.0) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Factory Supply 1,5-Diphenylcarbazide CAS 140-22-7 With Best 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\/es\/product\/52.html\" \/>\n<meta property=\"og:locale\" content=\"es_MX\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Factory Supply 1,5-Diphenylcarbazide CAS 140-22-7 With Best Price\" \/>\n<meta property=\"og:description\" content=\"1,5-Diphenylcarbazide (CAS 140-22-7) - Comprehensive User Guide &amp; Factory Supply Table of Contents 1. 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