Phthalic Anhydride, abbreviated as\u00a0PA, is an important aromatic cyclic anhydride and a key intermediate in the organic chemical industry. It is a white crystalline solid with a pungent odor, widely used in the production of plasticizers, resins, dyes, and other specialty chemicals.<\/p>\n
Chemical Name:<\/strong> Phthalic Anhydride; 1,3-Isobenzofurandione PA is a versatile intermediate with extensive applications across multiple industries:<\/strong> Phthalic Anhydride, abbreviated as\u00a0PA, is an important aromatic cyclic anhydride and a key intermediate in the organic chemical industry. It is a white crystalline solid with a pungent odor, widely used in the production of plasticizers, resins, dyes, and other specialty chemicals.<\/p>","protected":false},"featured_media":3878,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_seopress_robots_primary_cat":"none","_seopress_titles_title":"%%post_title%%","_seopress_titles_desc":"%%post_excerpt%%","_seopress_robots_index":"","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":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"default","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-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}}},"product_brand":[],"product_cat":[105],"product_tag":[],"class_list":{"0":"post-2454","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-paphthalic-anhydride-anhydrides","7":"desktop-align-center","8":"tablet-align-left","9":"mobile-align-left","10":"ast-product-gallery-layout-horizontal-slider","11":"ast-product-gallery-with-no-image","12":"ast-product-tabs-layout-horizontal","14":"first","15":"instock","16":"featured","17":"shipping-taxable","18":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/www.jmchemi.com\/es\/wp-json\/wp\/v2\/product\/2454","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.jmchemi.com\/es\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/www.jmchemi.com\/es\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/www.jmchemi.com\/es\/wp-json\/wp\/v2\/comments?post=2454"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.jmchemi.com\/es\/wp-json\/wp\/v2\/media\/3878"}],"wp:attachment":[{"href":"https:\/\/www.jmchemi.com\/es\/wp-json\/wp\/v2\/media?parent=2454"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/www.jmchemi.com\/es\/wp-json\/wp\/v2\/product_brand?post=2454"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/www.jmchemi.com\/es\/wp-json\/wp\/v2\/product_cat?post=2454"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/www.jmchemi.com\/es\/wp-json\/wp\/v2\/product_tag?post=2454"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
\nAbbreviation:<\/strong> PA
\nChemical Formula:<\/strong> C8H4O3
\nMolecular Weight:<\/strong> 148.12 g\/mol
\nCAS Registry Number:<\/strong> 85-44-9
\nUN Number 2214 (Class 8 Corrosive Substance)
\nStructural Feature:<\/strong> A cyclic anhydride formed by the dehydration of phthalic acid, with a benzene ring fused to a five-membered anhydride ring<\/p>\n2 . Core Industrial Applications<\/h4>\n
\nPlasticizer Production (Largest Application)Reacted with alcohols (e.g., 2-ethylhexanol, butanol) to produce\u00a0phthalate esters, the most widely used plasticizers for polyvinyl chloride (PVC). Key products include DOP (dioctyl phthalate), DBP (dibutyl phthalate), and DINP (diisononyl phthalate), which improve PVC flexibility and processability.
\nPolymer Resins<\/strong>
\nUnsaturated Polyester Resins (UPR):<\/strong> Copolymerized with glycols and unsaturated acids to produce UPR, used in fiberglass-reinforced plastics (FRP) for boats, pipes, and construction materials.
\nAlkyd Resins:<\/strong> Reacted with polyols and fatty acids to form alkyd resins, the base component of industrial coatings, paints, and varnishes.
\nDyes and Pigments<\/strong>
\nServes as a precursor for phthalocyanine dyes and pigments, which are widely used in textile dyeing, printing inks, and plastic coloring.
\nSpecialty ChemicalsUsed in the synthesis of pharmaceutical intermediates, insecticides, surfactants, and flame retardants. It also acts as a curing agent for epoxy resins.<\/p>","protected":false},"excerpt":{"rendered":"