{"id":350,"date":"2022-05-01T13:16:28","date_gmt":"2022-05-01T11:16:28","guid":{"rendered":"https:\/\/blogs.ugr.es\/tfm-master-idcim\/?p=350"},"modified":"2023-05-16T20:44:15","modified_gmt":"2023-05-16T18:44:15","slug":"chemical-mineralogical-study-of-commercial-talcum-powders-purchased-on-amazon-and-evaluation-of-their-suitability-for-pharmaceutical-cosmetic-use","status":"publish","type":"post","link":"https:\/\/blogs.ugr.es\/tfm-master-idcim\/en\/chemical-mineralogical-study-of-commercial-talcum-powders-purchased-on-amazon-and-evaluation-of-their-suitability-for-pharmaceutical-cosmetic-use\/","title":{"rendered":"Chemical-mineralogical study of commercial talcum powders purchased on Amazon and evaluation of their suitability for pharmaceutical-cosmetic use &#8211; Laura Cazorla Navarro"},"content":{"rendered":"<p><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-400 aligncenter\" src=\"https:\/\/blogs.ugr.es\/tfm-master-idcim\/wp-content\/uploads\/sites\/117\/2022\/05\/Laura-Cazorla_ingles_page-0001.jpg\" alt=\"\" width=\"800\" height=\"450\" srcset=\"https:\/\/blogs.ugr.es\/tfm-master-idcim\/wp-content\/uploads\/sites\/117\/2022\/05\/Laura-Cazorla_ingles_page-0001.jpg 800w, https:\/\/blogs.ugr.es\/tfm-master-idcim\/wp-content\/uploads\/sites\/117\/2022\/05\/Laura-Cazorla_ingles_page-0001-300x169.jpg 300w, https:\/\/blogs.ugr.es\/tfm-master-idcim\/wp-content\/uploads\/sites\/117\/2022\/05\/Laura-Cazorla_ingles_page-0001-700x394.jpg 700w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/p>\n<p style=\"text-align: justify\">Talc is a hydrated magnesium silicate, with the formula Mg3(OH)2Si4O10, which may contain small amounts of other associated minerals, such as Chlorite, Calcite, Dolomite and Magnesite. The characteristics of talc make it a unique raw material with a wide variety of applications in different industrial sectors, including the pharmaceutical-cosmetic sector.<br \/>\nIn this research, we carried out a chemical, mineralogical and Pharmacopoeia study of samples of various talcum powders purchased on Amazon, by applying the European Pharmacopoeia standards and other complementary methods such as: XRF, XRD, ICP-mass, SEM-EDX, calcimetry and atomic absorption.<br \/>\nMost of the samples had a high talc purity (90-100%) with a few impurities such as Chlorite, Calcite, Dolomite, Quartz and Zincite.<br \/>\nIn terms of mineral quality, all the talcum powders studied were suitable for cosmetic use. However, in terms of Pharmacopoeia quality, only six of the samples met the requirements.<\/p>\n<p><strong>Keywords:<\/strong> Talc; European Pharmacopoeia; Mineral quality; Pharmaceutical-Cosmetic Use; Impurities.<\/p>\n<p><strong>Directed by:<\/strong> Mar\u00eda Virginia Fern\u00e1ndez Gonz\u00e1lez<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Talc is a hydrated magnesium silicate, with the formula Mg3(OH)2Si4O10, which may contain small amounts of other associated minerals, such as Chlorite, Calcite, Dolomite and Magnesite. The characteristics of talc make it a unique raw material with a wide variety of applications in different industrial sectors, including the pharmaceutical-cosmetic sector. In this research, we carried [&hellip;]<\/p>\n","protected":false},"author":589,"featured_media":400,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_genesis_hide_title":false,"_genesis_hide_breadcrumbs":false,"_genesis_hide_singular_image":false,"_genesis_hide_footer_widgets":false,"_genesis_custom_body_class":"","_genesis_custom_post_class":"","_genesis_layout":"","footnotes":"","_members_access_role":[],"_members_access_error":""},"categories":[146,192],"tags":[184,190,186,188,182],"class_list":["post-350","post","type-post","status-publish","format-standard","has-post-thumbnail","category-2020-2021-en","category-cosmetics","tag-european-pharmacopoeia","tag-impurities","tag-mineral-quality","tag-pharmaceutical-cosmetic-use","tag-talc","entry"],"_links":{"self":[{"href":"https:\/\/blogs.ugr.es\/tfm-master-idcim\/wp-json\/wp\/v2\/posts\/350","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blogs.ugr.es\/tfm-master-idcim\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blogs.ugr.es\/tfm-master-idcim\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blogs.ugr.es\/tfm-master-idcim\/wp-json\/wp\/v2\/users\/589"}],"replies":[{"embeddable":true,"href":"https:\/\/blogs.ugr.es\/tfm-master-idcim\/wp-json\/wp\/v2\/comments?post=350"}],"version-history":[{"count":4,"href":"https:\/\/blogs.ugr.es\/tfm-master-idcim\/wp-json\/wp\/v2\/posts\/350\/revisions"}],"predecessor-version":[{"id":961,"href":"https:\/\/blogs.ugr.es\/tfm-master-idcim\/wp-json\/wp\/v2\/posts\/350\/revisions\/961"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/blogs.ugr.es\/tfm-master-idcim\/wp-json\/wp\/v2\/media\/400"}],"wp:attachment":[{"href":"https:\/\/blogs.ugr.es\/tfm-master-idcim\/wp-json\/wp\/v2\/media?parent=350"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blogs.ugr.es\/tfm-master-idcim\/wp-json\/wp\/v2\/categories?post=350"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blogs.ugr.es\/tfm-master-idcim\/wp-json\/wp\/v2\/tags?post=350"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}