{"id":278,"date":"2022-07-04T10:04:02","date_gmt":"2022-07-04T01:04:02","guid":{"rendered":"https:\/\/www.repcoinc.co.jp\/wp\/?page_id=278"},"modified":"2025-07-18T08:33:11","modified_gmt":"2025-07-17T23:33:11","slug":"elemental_composition","status":"publish","type":"page","link":"https:\/\/www.repcoinc.co.jp\/en\/elemental_composition\/","title":{"rendered":"Elemental Composition"},"content":{"rendered":"\n
<\/td>Phlogopite (S Grades)<\/strong><\/td>Muscovite (M Grades)<\/strong><\/td><\/tr>
Chemical Structural Formula<\/strong><\/td>K2<\/sub>(Mg,Fe)6<\/sub>Si6<\/sub>Al2<\/sub>O20<\/sub>(OH)4<\/sub><\/td>K2<\/sub>Al4<\/sub>Si6<\/sub>Al2<\/sub>O20<\/sub>(OH)4<\/sub><\/td><\/tr>
Chemical Composition<\/strong><\/td>K2<\/sub>O<\/strong><\/td>12.2%<\/td>10.5%<\/td><\/tr>
SiO2<\/sub><\/strong><\/td>41.0%<\/td>46.0%<\/td><\/tr>
Al2<\/sub>O3<\/sub><\/strong><\/td>10.2%<\/td>31.6%<\/td><\/tr>
Fe2<\/sub>O3<\/sub><\/strong><\/td>3.2%<\/td>4.9%<\/td><\/tr>
FeO<\/strong><\/td>5.4%<\/td>0.2%<\/td><\/tr>
MgO<\/strong><\/td>23.5%<\/td>0.9%<\/td><\/tr>
TiO2<\/sub><\/strong><\/td>0.2%<\/td>0.2%<\/td><\/tr>
Ig. Loss<\/strong><\/td>1.2%<\/td>4.4%<\/td><\/tr>
Form and Colour<\/strong><\/td>Scale-like Powder, Brown-Reddish Brown<\/td>Scale-like Powder, White-Ash Gray<\/td><\/tr>
Specific Gravity<\/strong><\/td>2.9<\/td>2.85<\/td><\/tr>
pH(20% Suspension)<\/strong><\/td>9.0\uff5e10.0<\/td>8.5\uff5e9.5<\/td><\/tr>
Melting Point (Approx.)<\/strong><\/td>1,500\u2103<\/td>1,200\u2103<\/td><\/tr>
Dehydrogeneration Temperature (Approx.)<\/strong><\/td>800\u2103<\/td>350\u2103<\/td><\/tr>
Volume Resistivity<\/strong><\/td>0.6\uff5e1.8\u00d71010<\/sup>\u03a9cm<\/td>1011<\/sup>\uff5e1013<\/sup>\u03a9cm<\/td><\/tr><\/tbody><\/table><\/figure>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"swell_btn_cv_data":"","_locale":"en_US","_original_post":"https:\/\/www.repcoinc.co.jp\/wp\/?page_id=158","footnotes":"","_wp_rev_ctl_limit":""},"class_list":["post-278","page","type-page","status-publish","hentry","en-US"],"_links":{"self":[{"href":"https:\/\/www.repcoinc.co.jp\/wp-json\/wp\/v2\/pages\/278","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.repcoinc.co.jp\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.repcoinc.co.jp\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.repcoinc.co.jp\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.repcoinc.co.jp\/wp-json\/wp\/v2\/comments?post=278"}],"version-history":[{"count":5,"href":"https:\/\/www.repcoinc.co.jp\/wp-json\/wp\/v2\/pages\/278\/revisions"}],"predecessor-version":[{"id":806,"href":"https:\/\/www.repcoinc.co.jp\/wp-json\/wp\/v2\/pages\/278\/revisions\/806"}],"wp:attachment":[{"href":"https:\/\/www.repcoinc.co.jp\/wp-json\/wp\/v2\/media?parent=278"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}