{"id":1907,"date":"2023-11-20T07:59:46","date_gmt":"2023-11-19T23:59:46","guid":{"rendered":"https:\/\/ciderhousetest.com\/labnetwest26\/?p=1907"},"modified":"2025-12-22T06:03:51","modified_gmt":"2025-12-21T22:03:51","slug":"lime-water","status":"publish","type":"post","link":"https:\/\/ciderhousetest.com\/labnetwest26\/lime-water\/","title":{"rendered":"Lime Water"},"content":{"rendered":"<p>2-3 spatulas of calcium hydroxide in a 500ml stock bottle and make up with distilled water.\u00a0 Mix well, then allow the solids to settle.\u00a0 If desired solids can be filtered off, but this is not necessary.<\/p>\n<p>Limewater is saturated calcium hydroxide Ca(OH)2.<br \/>\nAdd (solid) calcium hydroxide to water until no more will dissolve. Let it settle, preferably overnight, so that the limewater solution is clear.<br \/>\nStore in dedicated 2.5L Winchesters and leave some excess solid at the base.<br \/>\nWhen you decant, the solid will start to mix with the clear liquid, so having two containers is handy.<\/p>\n<p>25g of calcium hydroxide solid into 1000ml of distilled water, in a Winchester. Shake, allow solid to settle and draw off the clear liquid. Every now and again give it a shake and let settle again. You can keep topping it up with water.<\/p>\n<p>Dissolve calcium hydroxide into a beaker containing 3\/4 of the total final volume and agitate using a magnetic stirrer for about 24h. Cover the beaker with glad wrap\u00a0or watch glass, to avoid oxidation.<br \/>\nOnce\u00a0fully dissolved, makeup\u00a0to final volume and filter the solution\u00a0to get rid of any undissolved calcium hydroxide. Transferred solution into a sealed container.<\/p>\n<p>Lime water is approximately a 0.02M solution of Calcium Hydroxide.<br \/>\nAdd 25g of calcium hydroxide to a litre of water.\u00a0 Shake and allow to settle.<br \/>\nDraw off the clear liquid, this is the saturated solution.<br \/>\nAdd more water as the solution is used, to the keep the container full. Shake and allow to settle again.<br \/>\nThe allows the original solution to be used multiple times.<\/p>\n<p><em>From the lab Bible<\/em><br \/>\n<em>The Laboratory \u2013 A Science reference & preparation manual for schools.<\/em><br \/>\n<em>B. Dungey<\/em><\/p>\n<p><img fetchpriority=\"high\" decoding=\"async\" class=\"alignnone wp-image-1908 size-full\" src=\"https:\/\/ciderhousetest.com\/labnetwest26\/wp-content\/uploads\/2023\/11\/Alkalis.png\" alt=\"Alkalis\" width=\"2722\" height=\"1815\" srcset=\"https:\/\/ciderhousetest.com\/labnetwest26\/wp-content\/uploads\/2023\/11\/Alkalis.png 2722w, https:\/\/ciderhousetest.com\/labnetwest26\/wp-content\/uploads\/2023\/11\/Alkalis-300x200.png 300w, https:\/\/ciderhousetest.com\/labnetwest26\/wp-content\/uploads\/2023\/11\/Alkalis-1024x683.png 1024w, https:\/\/ciderhousetest.com\/labnetwest26\/wp-content\/uploads\/2023\/11\/Alkalis-768x512.png 768w, https:\/\/ciderhousetest.com\/labnetwest26\/wp-content\/uploads\/2023\/11\/Alkalis-1536x1024.png 1536w, https:\/\/ciderhousetest.com\/labnetwest26\/wp-content\/uploads\/2023\/11\/Alkalis-2048x1366.png 2048w\" sizes=\"(max-width: 2722px) 100vw, 2722px\" \/><\/p>\n","protected":false},"excerpt":{"rendered":"<p>2-3 spatulas of calcium hydroxide in a 500ml stock bottle and make up with distilled water.\u00a0 Mix well, then allow the solids to settle.\u00a0 If desired solids can be filtered off, but this is not necessary. Limewater is saturated calcium hydroxide Ca(OH)2. Add (solid) calcium hydroxide to water until no more will dissolve. Let it [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-1907","post","type-post","status-publish","format-standard","hentry","category-uncategorised"],"_links":{"self":[{"href":"https:\/\/ciderhousetest.com\/labnetwest26\/wp-json\/wp\/v2\/posts\/1907","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ciderhousetest.com\/labnetwest26\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ciderhousetest.com\/labnetwest26\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ciderhousetest.com\/labnetwest26\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/ciderhousetest.com\/labnetwest26\/wp-json\/wp\/v2\/comments?post=1907"}],"version-history":[{"count":0,"href":"https:\/\/ciderhousetest.com\/labnetwest26\/wp-json\/wp\/v2\/posts\/1907\/revisions"}],"wp:attachment":[{"href":"https:\/\/ciderhousetest.com\/labnetwest26\/wp-json\/wp\/v2\/media?parent=1907"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ciderhousetest.com\/labnetwest26\/wp-json\/wp\/v2\/categories?post=1907"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ciderhousetest.com\/labnetwest26\/wp-json\/wp\/v2\/tags?post=1907"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}