{"id":85692,"date":"2026-04-06T13:30:47","date_gmt":"2026-04-06T11:30:47","guid":{"rendered":"https:\/\/medqmedicalsuppliers.co.za\/?post_type=product&#038;p=85692"},"modified":"2026-04-06T13:30:59","modified_gmt":"2026-04-06T11:30:59","slug":"litmus-paper-2","status":"publish","type":"product","link":"https:\/\/medqmedicalsuppliers.co.za\/?product=litmus-paper-2","title":{"rendered":"Litmus Paper"},"content":{"rendered":"<p>Litmus paper is paper that has been treated with a specific indicator\u2014a mixture of 10-15 natural dyes obtained from lichens (mainly Roccella tinctoria) that turns red in response to acidic conditions (pH 7).<\/p>\n<ul>\n<li>Litmus paper is a tool used to test whether a substance is an acid or base. When a substance is dissolved in water, the resulting solution causes the litmus paper to change colour. <\/li>\n<li>The acidity or alkalinity of a solution is determined by the concentration of hydrogen ions, or power of hydrogen, expressed as a pH value.<\/li>\n<li>A litmus test provides a quick result but cannot determine the level of acidity or alkalinity of a solution.<\/li>\n<\/ul>\n<p>Performing Litmus Test<\/p>\n<ul>\n<li>It gives the user a general indication of acidity or alkalinity as it correlates to the shade of red or blue that the paper turns.<\/li>\n<li>To test the pH of a substance, dip a strip of litmus paper into the solution or use a dropper or pipette to drip a small amount of a solution onto the litmus paper. <\/li>\n<li>Blue paper can indicate an acid with a pH between 4 and 5 or lower. Red paper can show a base with a pH greater than 8. If a solution has a pH between 5 and 8, it will show little color change on the paper.<\/li>\n<li>A base tested with blue paper will not show any color change, nor will an acid tested with red paper register a change in color<\/li>\n<\/ul>\n<p>Limitations <\/p>\n<ul>\n<li>Using a litmus test is a quick and easy way to determine if a solution is acidic or alkaline. <\/li>\n<li>Litmus paper is inexpensive, portable and can test acidity and alkalinity using only with a small volume of a solution. <\/li>\n<li>However, it can\u2019t provide the actual pH for a substance, other than indicating if the pH is roughly less than 5 or greater than 8. <\/li>\n<li>Litmus paper is not useful for testing substances with a pH that is closer to neutral.<\/li>\n<\/ul>\n<p>Add to Wishlist<\/p>\n<p> Add to Wishlist<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Litmus Paper<\/p>\n","protected":false},"featured_media":85729,"template":"","meta":{"site-sidebar-layout":"default","site-content-layout":"","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":"","adv-header-id-meta":"","stick-header-meta":"","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":"","background-image":"","background-repeat":"repeat","background-position":"center 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