{"id":48507,"date":"2024-09-05T09:59:59","date_gmt":"2024-09-05T07:59:59","guid":{"rendered":"https:\/\/fagroncompoundingservices.be\/qanda\/comment-diluer-lethanol-90-a-lethanol-70\/"},"modified":"2024-09-05T09:59:59","modified_gmt":"2024-09-05T07:59:59","slug":"comment-diluer-lethanol-90-a-lethanol-70","status":"publish","type":"qanda","link":"https:\/\/fagroncompoundingservices.be\/fr\/qanda\/comment-diluer-lethanol-90-a-lethanol-70\/","title":{"rendered":"Comment diluer de l\u2019\u00e9thanol \u00e0 90 % pour obtenir de l\u2019\u00e9thanol \u00e0 70 % ?"},"content":{"rendered":"<p>Des solutions avec une certaine teneur en alcool peuvent \u00eatre pr\u00e9par\u00e9es \u00e0 l\u2019aide des tables alg\u00e9mim\u00e9triques de la Pharmacop\u00e9e europ\u00e9enne (section 5.5).<br \/>\nCe tableau indique, entre autres, le titre alcoom\u00e9trique et la teneur en poids des solutions \u00e9thanoliques : % V\/V = teneur en alcool ou degr\u00e9 d\u2019\u00e9thanol = nombre de ml d\u2019alcool absolu dans un m\u00e9lange de 100 ml % p\/m = teneur en poids = nombre de grammes d\u2019alcool absolu dans un m\u00e9lange de 100 g Pour passer d\u2019un degr\u00e9 d\u2019alcool \u00e0 un autre, proc\u00e9dez comme suit :<br \/>\n1) Recherchez dans le tableau \u00e0 la fois la solution alcoolique \u00e0 partir de laquelle commencer et la solution alcoolique \u00e0 pr\u00e9parer selon la teneur en poids correspondant \u00e0 la teneur en \u00e9thanol.<br \/>\n2) Calculer le poids de la solution alcoolique \u00e0 utiliser \u00e0 l\u2019aide de la formule suivante : x = [% m\/m de solution \u00e0 obtenir\/% p\/m de solution initiale] * P O\u00f9 x = poids de la solution alcoolique \u00e0 utiliser P = poids de la solution alcoolique \u00e0 obtenir     <\/p>\n","protected":false},"featured_media":0,"template":"","meta":{"_acf_changed":false},"product_cat":[],"faq-type":[2787],"grondstof":[4539],"qanda-related":[3883,3885],"cnk":[4540],"qanda-similar":[4542],"class_list":["post-48507","qanda","type-qanda","status-publish","hentry","faq-type-instructif","grondstof-ethanol-denature-a-90","qanda-related-ethanol-denature-a-70","qanda-related-ethanol-denature-a-96","cnk-9716683-fr","qanda-similar-ethanol-denature-a-90"],"acf":[],"_links":{"self":[{"href":"https:\/\/fagroncompoundingservices.be\/fr\/wp-json\/wp\/v2\/qanda\/48507","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fagroncompoundingservices.be\/fr\/wp-json\/wp\/v2\/qanda"}],"about":[{"href":"https:\/\/fagroncompoundingservices.be\/fr\/wp-json\/wp\/v2\/types\/qanda"}],"wp:attachment":[{"href":"https:\/\/fagroncompoundingservices.be\/fr\/wp-json\/wp\/v2\/media?parent=48507"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/fagroncompoundingservices.be\/fr\/wp-json\/wp\/v2\/product_cat?post=48507"},{"taxonomy":"faq-type","embeddable":true,"href":"https:\/\/fagroncompoundingservices.be\/fr\/wp-json\/wp\/v2\/faq-type?post=48507"},{"taxonomy":"grondstof","embeddable":true,"href":"https:\/\/fagroncompoundingservices.be\/fr\/wp-json\/wp\/v2\/grondstof?post=48507"},{"taxonomy":"qanda-related","embeddable":true,"href":"https:\/\/fagroncompoundingservices.be\/fr\/wp-json\/wp\/v2\/qanda-related?post=48507"},{"taxonomy":"cnk","embeddable":true,"href":"https:\/\/fagroncompoundingservices.be\/fr\/wp-json\/wp\/v2\/cnk?post=48507"},{"taxonomy":"qanda-similar","embeddable":true,"href":"https:\/\/fagroncompoundingservices.be\/fr\/wp-json\/wp\/v2\/qanda-similar?post=48507"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}