{"id":9599,"date":"2024-07-02T17:25:44","date_gmt":"2024-07-02T15:25:44","guid":{"rendered":"https:\/\/www.hdebalzac.fr\/?p=9599"},"modified":"2024-07-02T17:25:49","modified_gmt":"2024-07-02T15:25:49","slug":"lion-hydroxyde-demasque-enquete-sur-un-super-heros-insoupconne","status":"publish","type":"post","link":"https:\/\/www.hdebalzac.fr\/index.php\/2024\/07\/02\/lion-hydroxyde-demasque-enquete-sur-un-super-heros-insoupconne\/","title":{"rendered":"L’ion hydroxyde d\u00e9masqu\u00e9 : enqu\u00eate sur un super-h\u00e9ros insoup\u00e7onn\u00e9 !"},"content":{"rendered":"\n

Avez-vous d\u00e9j\u00e0 d\u00e9bouch\u00e9 un \u00e9vier ou lessiv\u00e9 du linge sale ? Si oui, vous avez fait appel, sans le savoir, aux super-pouvoirs d’un ion minuscule mais ultra-efficace : l’ion hydroxyde<\/strong> (HO–<\/sup>) ! Pr\u00e9sent dans de nombreux produits m\u00e9nagers, cet ion au grand c\u0153ur se cache aussi dans les cosm\u00e9tiques, les m\u00e9dicaments,… Mais quelles sont donc ses incroyables facult\u00e9s ? Les laborantins de seconde professionnelle ABIL<\/strong> ont men\u00e9 l’enqu\u00eate !<\/p>\n\n\n\n

Changement de couleur en un clin d’\u0153il !<\/h2>\n\n\n\n
\"\"<\/figure>
\n

Premi\u00e8re sc\u00e8ne : le labo de chimie. <\/p>\n\n\n\n

\u00c0 peine l’ion hydroxyde vers\u00e9 dans les tubes \u00e0 essais que les indicateurs color\u00e9s se sont mis \u00e0 changer de tenue, comme par magie !<\/p>\n\n\n\n

D’un vert p\u00e2le, le bleu de bromothymol a vir\u00e9 \u00e0 l’azur profond. Quant \u00e0 la ph\u00e9nolphtal\u00e9ine, sa robe rose fushia a pris des tons \u00e9carlates \u00e9clatants. <\/p>\n\n\n\n

De v\u00e9ritables cam\u00e9l\u00e9ons chimiques !<\/p>\n<\/div><\/div>\n\n\n\n

Des pr\u00e9cipit\u00e9s en pagaille<\/h2>\n\n\n\n
\n

Mais ce n’est pas tout !<\/p>\n\n\n\n

L’ion hydroxyde a \u00e9galement la facult\u00e9 de provoquer l’apparition de pr\u00e9cipit\u00e9s insolubles quand il rencontre certains cations m\u00e9talliques.<\/p>\n\n\n\n

Un coup de baguette hydroxyde, et voil\u00e0 qu’apparaissent des paillettes blanches de zinc, des confettis bleu vif de cuivre (II), une fine poussi\u00e8re verte de fer (II) … On se croirait dans un film !<\/p>\n<\/div>

\"\"<\/figure><\/div>\n\n\n\n

L’\u00e9co-attitude responsable<\/h2>\n\n\n\n
\"\"<\/figure>
\n

Et ce n’est l\u00e0 qu’un aper\u00e7u des multiples talents de ce super-ion ! <\/p>\n\n\n\n

Ses r\u00e9actions particuli\u00e8res permettent notamment d’analyser la composition des produits de beaut\u00e9, des aliments, des m\u00e9dicaments … <\/p>\n\n\n\n

Nos laborantins l’ont non seulement identifi\u00e9 et analys\u00e9, mais ont aussi fait le m\u00e9nage en recyclant tous les d\u00e9chets.<\/p>\n<\/div><\/div>\n\n\n\n

Qui aurait cru qu’un simple ion d\u00e9tienne autant de super-pouvoirs ? Couleurs, pr\u00e9cipit\u00e9s, r\u00e9actions \u00e0 gogo … l’ion hydroxyde ne manquera pas de vous en mettre plein la vue ! Une chose est s\u00fbre, gr\u00e2ce \u00e0 ces exp\u00e9riences riches en rebondissements, nos jeunes chimistes sont d\u00e9sormais incollables sur ce v\u00e9ritable h\u00e9ros super-ionique. Avec lui dans leur besace, ils sont par\u00e9s pour analyser la composition des produits les plus divers. En m\u00e9nage, beaut\u00e9 ou sant\u00e9, l’ion hydroxyde sera toujours la garantie d’un r\u00e9sultat … \u00e9clatant !<\/p>\n","protected":false},"excerpt":{"rendered":"

Avez-vous d\u00e9j\u00e0 d\u00e9bouch\u00e9 un \u00e9vier ou lessiv\u00e9 du linge sale ? Si oui, vous avez fait appel, sans le savoir, aux super-pouvoirs d’un ion minuscule mais ultra-efficace : l’ion hydroxyde […]<\/p>\n","protected":false},"author":19,"featured_media":9592,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"ocean_post_layout":"","ocean_both_sidebars_style":"","ocean_both_sidebars_content_width":0,"ocean_both_sidebars_sidebars_width":0,"ocean_sidebar":"0","ocean_second_sidebar":"0","ocean_disable_margins":"enable","ocean_add_body_class":"","ocean_shortcode_before_top_bar":"","ocean_shortcode_after_top_bar":"","ocean_shortcode_before_header":"","ocean_shortcode_after_header":"","ocean_has_shortcode":"","ocean_shortcode_after_title":"","ocean_shortcode_before_footer_widgets":"","ocean_shortcode_after_footer_widgets":"","ocean_shortcode_before_footer_bottom":"","ocean_shortcode_after_footer_bottom":"","ocean_display_top_bar":"default","ocean_display_header":"default","ocean_header_style":"","ocean_center_header_left_menu":"0","ocean_custom_header_template":"0","ocean_custom_logo":0,"ocean_custom_retina_logo":0,"ocean_custom_logo_max_width":0,"ocean_custom_logo_tablet_max_width":0,"ocean_custom_logo_mobile_max_width":0,"ocean_custom_logo_max_height":0,"ocean_custom_logo_tablet_max_height":0,"ocean_custom_logo_mobile_max_height":0,"ocean_header_custom_menu":"0","ocean_menu_typo_font_family":"0","ocean_menu_typo_font_subset":"","ocean_menu_typo_font_size":0,"ocean_menu_typo_font_size_tablet":0,"ocean_menu_typo_font_size_mobile":0,"ocean_menu_typo_font_size_unit":"px","ocean_menu_typo_font_weight":"","ocean_menu_typo_font_weight_tablet":"","ocean_menu_typo_font_weight_mobile":"","ocean_menu_typo_transform":"","ocean_menu_typo_transform_tablet":"","ocean_menu_typo_transform_mobile":"","ocean_menu_typo_line_height":0,"ocean_menu_typo_line_height_tablet":0,"ocean_menu_typo_line_height_mobile":0,"ocean_menu_typo_line_height_unit":"","ocean_menu_typo_spacing":0,"ocean_menu_typo_spacing_tablet":0,"ocean_menu_typo_spacing_mobile":0,"ocean_menu_typo_spacing_unit":"","ocean_menu_link_color":"","ocean_menu_link_color_hover":"","ocean_menu_link_color_active":"","ocean_menu_link_background":"","ocean_menu_link_hover_background":"","ocean_menu_link_active_background":"","ocean_menu_social_links_bg":"","ocean_menu_social_hover_links_bg":"","ocean_menu_social_links_color":"","ocean_menu_social_hover_links_color":"","ocean_disable_title":"default","ocean_disable_heading":"default","ocean_post_title":"","ocean_post_subheading":"","ocean_post_title_style":"","ocean_post_title_background_color":"","ocean_post_title_background":0,"ocean_post_title_bg_image_position":"","ocean_post_title_bg_image_attachment":"","ocean_post_title_bg_image_repeat":"","ocean_post_title_bg_image_size":"","ocean_post_title_height":0,"ocean_post_title_bg_overlay":0.5,"ocean_post_title_bg_overlay_color":"","ocean_disable_breadcrumbs":"default","ocean_breadcrumbs_color":"","ocean_breadcrumbs_separator_color":"","ocean_breadcrumbs_links_color":"","ocean_breadcrumbs_links_hover_color":"","ocean_display_footer_widgets":"default","ocean_display_footer_bottom":"default","ocean_custom_footer_template":"0","omw_enable_modal_window":"enable","ocean_post_oembed":"","ocean_post_self_hosted_media":"","ocean_post_video_embed":"","ocean_link_format":"","ocean_link_format_target":"self","ocean_quote_format":"","ocean_quote_format_link":"post","ocean_gallery_link_images":"on","ocean_gallery_id":[],"footnotes":""},"categories":[9,3],"tags":[38,39,23],"class_list":["post-9599","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-developpement-durable","category-formation","tag-chimie","tag-laboratoires","tag-travaux-pratiques","entry","has-media"],"jetpack_featured_media_url":"https:\/\/www.hdebalzac.fr\/wp-content\/uploads\/2024\/06\/Ion_OH-.jpeg","views":"","publishpress_future_action":{"enabled":false,"date":"2026-04-11 00:26:51","action":"change-status","newStatus":"draft","terms":[],"taxonomy":"category","extraData":[]},"publishpress_future_workflow_manual_trigger":{"enabledWorkflows":[]},"_links":{"self":[{"href":"https:\/\/www.hdebalzac.fr\/index.php\/wp-json\/wp\/v2\/posts\/9599","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.hdebalzac.fr\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.hdebalzac.fr\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.hdebalzac.fr\/index.php\/wp-json\/wp\/v2\/users\/19"}],"replies":[{"embeddable":true,"href":"https:\/\/www.hdebalzac.fr\/index.php\/wp-json\/wp\/v2\/comments?post=9599"}],"version-history":[{"count":12,"href":"https:\/\/www.hdebalzac.fr\/index.php\/wp-json\/wp\/v2\/posts\/9599\/revisions"}],"predecessor-version":[{"id":9802,"href":"https:\/\/www.hdebalzac.fr\/index.php\/wp-json\/wp\/v2\/posts\/9599\/revisions\/9802"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.hdebalzac.fr\/index.php\/wp-json\/wp\/v2\/media\/9592"}],"wp:attachment":[{"href":"https:\/\/www.hdebalzac.fr\/index.php\/wp-json\/wp\/v2\/media?parent=9599"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.hdebalzac.fr\/index.php\/wp-json\/wp\/v2\/categories?post=9599"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.hdebalzac.fr\/index.php\/wp-json\/wp\/v2\/tags?post=9599"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}