{"id":829,"date":"2025-03-16T20:09:34","date_gmt":"2025-03-16T20:09:34","guid":{"rendered":"https:\/\/camingredients.com\/?post_type=product&#038;p=829"},"modified":"2026-03-22T14:40:13","modified_gmt":"2026-03-22T14:40:13","slug":"stearic-acid","status":"publish","type":"product","link":"https:\/\/camingredients.com\/fr\/produit\/stearic-acid\/","title":{"rendered":"Acide St\u00e9arique"},"content":{"rendered":"","protected":false},"excerpt":{"rendered":"<p><span style=\"font-weight: 400;\">L\u2019acide st\u00e9arique est une mol\u00e9cule amphiphile, c\u2019est-\u00e0-dire qu\u2019elle poss\u00e8de une extr\u00e9mit\u00e9 hydrophobe (form\u00e9e d\u2019une longue cha\u00eene carbon\u00e9e) et une extr\u00e9mit\u00e9 hydrophile (groupe carboxyle). Cette nature amphiphile en fait un agent de surface actif utile dans diverses applications industrielles.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">L\u2019acide st\u00e9arique est naturellement pr\u00e9sent dans de nombreuses graisses et huiles animales et v\u00e9g\u00e9tales, notamment dans le beurre de cacao et le beurre de karit\u00e9, ainsi que dans les huiles de graines de coton, de courge, de p\u00e9pins de raisin et de grenade.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Utilisation dans l\u2019industrie pharmaceutique (fabrication de comprim\u00e9s) :<\/span><\/p>\n<p><strong>Lubrifiant:<\/strong><\/p>\n<p><span style=\"font-weight: 400;\">Utilis\u00e9 pour r\u00e9duire la friction entre les comprim\u00e9s et les machines de compression, facilitant le processus de fabrication et \u00e9vitant l\u2019adh\u00e9rence aux poin\u00e7ons et matrices.<\/span><\/p>\n<p><strong>Agent de d\u00e9moulage:<\/strong><\/p>\n<p><span style=\"font-weight: 400;\">Il est \u00e9galement utilis\u00e9 pour emp\u00eacher les comprim\u00e9s de coller aux moules ou aux presses pendant leur production, assurant ainsi un d\u00e9moulage facile et uniforme des comprim\u00e9s.<\/span><\/p>\n<p><strong>Am\u00e9liorateur de stabilit\u00e9:<\/strong><\/p>\n<p><span style=\"font-weight: 400;\">Peut contribuer \u00e0 am\u00e9liorer la stabilit\u00e9 des comprim\u00e9s en influen\u00e7ant la lib\u00e9ration des ingr\u00e9dients actifs, bien que sa fonction principale reste li\u00e9e \u00e0 la fabrication.<\/span><\/p>\n<p><strong>Excipient :<\/strong><\/p>\n<p><span style=\"font-weight: 400;\">Dans certaines formulations, il sert \u00e0 maintenir la structure du comprim\u00e9 et sa stabilit\u00e9 pendant le stockage.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">En r\u00e9sum\u00e9 :\nDans la fabrication de comprim\u00e9s, l\u2019acide st\u00e9arique est principalement utilis\u00e9 pour ses propri\u00e9t\u00e9s lubrifiantes et antiadh\u00e9sives, facilitant le processus de production tout en garantissant une qualit\u00e9 constante du produit final.<\/span><\/p>\n<h3>Pays d\u2019origine : Chine<\/h3>\n<p>Conservation: <span style=\"font-weight: 400;\">\u00c0 conserver dans un contenant bien ferm\u00e9, \u00e0 l\u2019abri de l\u2019humidit\u00e9.<\/span><\/p>","protected":false},"featured_media":1324,"template":"","meta":{"_acf_changed":false,"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":"","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 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In this context, its main roles are as follows:  Lubricant:  Stearic acid is often used as a lubricant in tablet production. It helps reduce friction between the tablets and the compression machines, making the manufacturing process easier and preventing the tablets from sticking to the dies and punches of the machine.  Release agent:  It is also used to prevent tablets from sticking to molds or presses during their production, ensuring easy and uniform release of the tablets.  Stability enhancer:  Stearic acid can help improve the stability of tablets by controlling the release of active ingredients, although its main role is typically related to manufacturing ease.  Excipients in formulations:  In certain formulations, stearic acid can act as an excipient to help maintain the structure of the tablet while keeping its integrity during storage.  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