{"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\/en_au\/product\/52.html","title":{"rendered":"Factory Supply 1,5-Diphenylcarbazide CAS 140-22-7 With Best Price"},"content":{"rendered":"<div class=\"user-guide\">\n<h1>1,5-Diphenylcarbazide (CAS 140-22-7) - Comprehensive User Guide & Factory Supply<\/h1>\n<p>        <!-- Table of Contents --><\/p>\n<div class=\"toc\">\n<h2>Table of Contents<\/h2>\n<ul>\n<li><a href=\"#basic-info\">1. Basic Information<\/a><\/li>\n<li><a href=\"#applications\">2. Applications<\/a><\/li>\n<li><a href=\"#usage\">3. Usage Instructions<\/a><\/li>\n<li><a href=\"#case-studies\">4. Usage Case Studies<\/a><\/li>\n<li><a href=\"#contact\">5. Contact Information<\/a><\/li>\n<\/ul><\/div>\n<p>        <!-- Basic Information --><\/p>\n<div id=\"basic-info\" class=\"section\">\n<h2>1. Basic Information<\/h2>\n<ul>\n<li><strong>CAS Number:<\/strong> 140-22-7<\/li>\n<li><strong>Molecular Formula:<\/strong> C<sub>13<\/sub>H<sub>12<\/sub>N<sub>4<\/sub>O<\/li>\n<li><strong>Molecular Weight:<\/strong> 240.26 g\/mol<\/li>\n<li><strong>Appearance:<\/strong> White to off-white crystalline powder<\/li>\n<li><strong>Purity:<\/strong> \u226598% (HPLC)<\/li>\n<li><strong>Storage:<\/strong> Store in a cool, dry place away from light and moisture.<\/li>\n<\/ul><\/div>\n<p>        <!-- Applications --><\/p>\n<div id=\"applications\" class=\"section\">\n<h2>2. Applications<\/h2>\n<p>1,5-Diphenylcarbazide is widely used in:<\/p>\n<ul>\n<li><strong>Heavy Metal Detection:<\/strong> Primary reagent for spectrophotometric determination of chromium (VI), mercury (II), and lead (II).<\/li>\n<li><strong>Environmental Monitoring:<\/strong> Detects trace metal ions in water, soil, and industrial waste.<\/li>\n<li><strong>Pharmaceutical Analysis:<\/strong> Used in redox titration and chemical synthesis research.<\/li>\n<li><strong>Research Laboratories:<\/strong> Key component in studies involving oxidation-reduction reactions and coordination chemistry.<\/li>\n<\/ul><\/div>\n<p>        <!-- Usage Instructions --><\/p>\n<div id=\"usage\" class=\"section\">\n<h2>3. Step-by-Step Usage Instructions<\/h2>\n<ol>\n<li><strong>Preparation:<\/strong> Dissolve 0.1g of 1,5-Diphenylcarbazide in 100mL of ethanol to create a 0.1% solution.<\/li>\n<li><strong>Reaction:<\/strong> Add the solution to the sample containing target metal ions. Adjust pH to 1.5-2.0 using sulfuric acid for optimal chromogenic reaction.<\/li>\n<li><strong>Measurement:<\/strong> Use a spectrophotometer to measure absorbance at 540nm (for Cr(VI)) or 490nm (for Hg(II)).<\/li>\n<li><strong>Safety:<\/strong> Wear PPE (gloves, goggles) and work in a well-ventilated area. Avoid inhalation or direct contact.<\/li>\n<li><strong>Storage:<\/strong> Keep the reagent in an airtight container at 2-8\u00b0C for long-term stability.<\/li>\n<\/ol><\/div>\n<p>        <!-- Case Studies --><\/p>\n<div id=\"case-studies\" class=\"section\">\n<h2>4. Usage Case Studies<\/h2>\n<h3>Case 1: Detection of Hexavalent Chromium in Water<\/h3>\n<p><strong>Procedure:<\/strong><\/p>\n<ol>\n<li>Prepare 0.1% 1,5-Diphenylcarbazide solution in ethanol.<\/li>\n<li>Acidify 50mL water sample with H<sub>2<\/sub>SO<sub>4<\/sub> to pH 1.5.<\/li>\n<li>Add 2mL reagent, mix, and wait 10 minutes for color development.<\/li>\n<li>Measure absorbance at 540nm. Calculate Cr(VI) concentration using a calibration curve (detection limit: 0.01mg\/L).<\/li>\n<\/ol>\n<h3>Case 2: Mercury Quantification in Soil Samples<\/h3>\n<ol>\n<li>Digest 1g soil with HNO<sub>3<\/sub>\/HCl and filter.<\/li>\n<li>Adjust filtrate to pH 2.0, add 3mL reagent solution.<\/li>\n<li>Measure absorbance at 490nm after 15 minutes. Linear range: 0.05-5.0mg\/kg.<\/li>\n<\/ol><\/div>\n<p>        <!-- Contact --><\/p>\n<div id=\"contact\" class=\"section\">\n<h2>5. Contact Information<\/h2>\n<p>For technical inquiries or bulk orders:<\/p>\n<ul>\n<li>Email: <a href=\"mailto:info@vivalr.com\">info@vivalr.com<\/a><\/li>\n<li>Phone: <a href=\"tel:+8615866781826\">(86) 15866781826<\/a><\/li>\n<\/ul>\n<p><em>Note:<\/em> Custom synthesis and OEM services available. Request MSDS and COA via email.<\/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\/en_au\/product\/52.html\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\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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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;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/vivalr.com\/en_au\/product\/52.html\" \/>\n<meta property=\"og:site_name\" content=\"Welcome to VIVALR- Your Trusted Source for Chemical Raw Materials\uff01\" \/>\n<meta property=\"article:modified_time\" content=\"2025-03-07T12:21:18+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/vivalr.com\/wp-content\/uploads\/2025\/03\/15-Diphenylcarbazide-CAS-140-22-7.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"400\" \/>\n\t<meta property=\"og:image:height\" content=\"400\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/vivalr.com\/product\/52.html\",\"url\":\"https:\/\/vivalr.com\/product\/52.html\",\"name\":\"Factory Supply 1,5-Diphenylcarbazide CAS 140-22-7 With Best Price - Welcome to VIVALR- Your Trusted Source for Chemical Raw Materials\uff01\",\"isPartOf\":{\"@id\":\"https:\/\/vivalr.com\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/vivalr.com\/product\/52.html#primaryimage\"},\"image\":{\"@id\":\"https:\/\/vivalr.com\/product\/52.html#primaryimage\"},\"thumbnailUrl\":\"https:\/\/vivalr.com\/wp-content\/uploads\/2025\/03\/15-Diphenylcarbazide-CAS-140-22-7.jpg\",\"datePublished\":\"2025-03-07T12:05:04+00:00\",\"dateModified\":\"2025-03-07T12:21:18+00:00\",\"breadcrumb\":{\"@id\":\"https:\/\/vivalr.com\/product\/52.html#breadcrumb\"},\"inLanguage\":\"en-AU\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/vivalr.com\/product\/52.html\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-AU\",\"@id\":\"https:\/\/vivalr.com\/product\/52.html#primaryimage\",\"url\":\"https:\/\/vivalr.com\/wp-content\/uploads\/2025\/03\/15-Diphenylcarbazide-CAS-140-22-7.jpg\",\"contentUrl\":\"https:\/\/vivalr.com\/wp-content\/uploads\/2025\/03\/15-Diphenylcarbazide-CAS-140-22-7.jpg\",\"width\":400,\"height\":400},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/vivalr.com\/product\/52.html#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/vivalr.com\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Shop\",\"item\":\"https:\/\/vivalr.com\/shop\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Factory Supply 1,5-Diphenylcarbazide CAS 140-22-7 With Best Price\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/vivalr.com\/#website\",\"url\":\"https:\/\/vivalr.com\/\",\"name\":\"Welcome to VIVALR- Your Trusted Source for Chemical Raw Materials\uff01\",\"description\":\"Discover a wide range of high-quality chemical raw materials to meet your industrial needs. 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Basic Information 2. Applications 3. Usage Instructions 4. Usage Case Studies 5. Contact Information 1. 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