{"id":40861,"date":"2023-02-06T10:42:35","date_gmt":"2023-02-06T10:42:35","guid":{"rendered":"https:\/\/www.alquera.com\/?post_type=product&#038;p=40861"},"modified":"2023-09-01T14:53:28","modified_gmt":"2023-09-01T14:53:28","slug":"cristalizacion-alumbre-de-roca-exp10","status":"publish","type":"product","link":"https:\/\/www.alquera.com\/fr\/cristalizacion-alumbre-de-roca-exp10\/","title":{"rendered":"Cristallisation de l'alun de roche #Exp10"},"content":{"rendered":"<h2>CE QUI EST INCLUS DANS LE KIT<\/h2>\n<ul>\n<li>1kg d'alun de roche<\/li>\n<li>Ne comprend pas : les gobelets, le fil, la teinture et la baguette de verre, que vous devrez acheter dans un magasin.<\/li>\n<\/ul>\n<h2>D\u00c9TAILL\u00c9E, \u00c9TAPE PAR \u00c9TAPE<\/h2>\n<p>Nous vous montrons la vid\u00e9o d\u00e9taill\u00e9e \u00e9tape par \u00e9tape :<\/p>\n<div class=\"ast-oembed-container\" style=\"height: 100%;\"><iframe loading=\"lazy\" title=\"#Exp10 - Cristallisation de l&#039;alun\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/oMOpx2lun9M?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/div>\n<p>&nbsp;<\/p>\n<ul>\n<li>Nous utiliserons 250 g d'alun et 250 ml d'eau. Chauffer et m\u00e9langer jusqu'\u00e0 dissolution compl\u00e8te.<\/li>\n<li>Versez la solution dans un verre (si vous souhaitez colorer le verre, ajoutez le colorant \u00e0 ce stade).<\/li>\n<li>Placez le fil sur une tige (ou similaire) de mani\u00e8re \u00e0 ce qu'il tombe sur le verre.<\/li>\n<li>Au bout de 30 \u00e0 40 minutes, vous verrez des cristaux se former. Apr\u00e8s quelques heures, le cristal continuera \u00e0 cro\u00eetre.<\/li>\n<\/ul>\n<h2>EXPLICATION TECHNIQUE<\/h2>\n<p>La cristallisation est le processus par lequel des cristaux sont cr\u00e9\u00e9s \u00e0 partir d'un \u00e9l\u00e9ment en poudre. La base de la cristallisation est la plus grande solubilit\u00e9 d'un \u00e9l\u00e9ment \u00e0 une temp\u00e9rature plus \u00e9lev\u00e9e qu'\u00e0 une temp\u00e9rature plus basse. Lorsque la solution se refroidit, la solubilit\u00e9 de l'alun diminue et le cristal se forme autour du fil.<\/p>","protected":false},"excerpt":{"rendered":"<p>Dans cette exp\u00e9rience, vous pouvez voir comment de beaux cristaux sont form\u00e9s \u00e0 partir d'un \u00e9l\u00e9ment en poudre. Vous pouvez voir dans la description les d\u00e9tails de ce que contient le kit.<\/p>","protected":false},"featured_media":41089,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false,"site-sidebar-layout":"default","site-content-layout":"default","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":"default","ast-page-background-enabled":"default","ast-page-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":"","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-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":"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":""},"mobile":{"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":""}}},"product_brand":[],"product_cat":[329,21],"product_tag":[],"class_list":{"0":"post-40861","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-experimentos-ciencias","7":"product_cat-productos","8":"desktop-align-left","9":"tablet-align-left","10":"mobile-align-left","11":"ast-product-gallery-layout-horizontal-slider","12":"ast-product-gallery-with-no-image","13":"ast-magnify-disabled","14":"ast-product-tabs-layout-horizontal","15":"ast-qv-on-image","17":"first","18":"instock","19":"taxable","20":"shipping-taxable","21":"purchasable","22":"product-type-simple"},"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.1 (Yoast SEO v27.1.1) - 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