{"id":2827,"date":"2016-05-17T09:45:45","date_gmt":"2016-05-17T13:45:45","guid":{"rendered":"http:\/\/www.ttgnet.com\/journal\/?p=2827"},"modified":"2016-05-17T09:45:45","modified_gmt":"2016-05-17T13:45:45","slug":"tuesday-17-may-2016","status":"publish","type":"post","link":"https:\/\/www.ttgnet.com\/journal\/2016\/05\/17\/tuesday-17-may-2016\/","title":{"rendered":"Tuesday, 17 May 2016"},"content":{"rendered":"<p><span style=\"font-weight: bold; color: #000099; font-family: Arial;\">09:45 &#8211;<\/span><span style=\"font-family: Arial;\"> Colin and I got several solutions made up yesterday. Today, Barbara and I will fill bottles.<br \/>\n<\/span><\/p>\n<p><span style=\"font-family: Arial;\">One of the solutions we made up was 4 liters of Benedict&#8217;s Reagent, which requires a bunch of sodium citrate. While making up the solution, I saw that we were down to less than 500 g of the reagent grade sodium citrate. I was about to order more when I realized that it made more sense just to stock citric acid. I can dissolve a weighed amount of citric acid in water and neutralize it with the stoichiometric equivalent mass of sodium bicarbonate (baking soda) to yield a solution of sodium citrate, which is just what I need. Also, citric acid and baking soda are both cheap, at about $2.70\/lb and $0.50\/lb respectively, whereas, at about $50\/kilo, reagent-grade sodium citrate from a chemical supply company is not. The 10 pounds of <a href=\"http:\/\/smile.amazon.com\/Milliard-Citric-Acid-Pound-NON-GMO\/dp\/B00GNBHPAS\">citric acid I bought<\/a> and the baking soda are both FCC\/USP (food-grade), which is more than pure enough for making up Benedict&#8217;s Reagent. And doing it this way ensures we&#8217;ll always have plenty of citric acid (and baking soda) on hand to make up baking powder and various other useful things.<br \/>\n<\/span><\/p>\n<p><span style=\"font-family: Arial;\"><br \/>\n<\/span><\/p>\n<hr style=\"width: 65%; height: 3px; font-family: Arial;\" \/>\n","protected":false},"excerpt":{"rendered":"<p>09:45 &#8211; Colin and I got several solutions made up yesterday. Today, Barbara and I will fill bottles.\n<\/p>\n<p>One of the solutions we made up was 4 liters of Benedict&#8217;s Reagent, which requires a bunch of sodium citrate. While making up the solution, I saw that we were down to less than 500 g of the reagent grade sodium citrate. I was about to order more when I realized that it made more sense just to stock citric acid.<\/p>\n<p> <a href=\"https:\/\/www.ttgnet.com\/journal\/2016\/05\/17\/tuesday-17-may-2016\/\">&nbsp;&raquo;&nbsp;Read more about: Tuesday, 17 May 2016 &nbsp;&raquo;<\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[44,11],"tags":[],"class_list":["post-2827","post","type-post","status-publish","format-standard","hentry","category-prepping","category-science-kits"],"_links":{"self":[{"href":"https:\/\/www.ttgnet.com\/journal\/wp-json\/wp\/v2\/posts\/2827","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.ttgnet.com\/journal\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.ttgnet.com\/journal\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.ttgnet.com\/journal\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ttgnet.com\/journal\/wp-json\/wp\/v2\/comments?post=2827"}],"version-history":[{"count":0,"href":"https:\/\/www.ttgnet.com\/journal\/wp-json\/wp\/v2\/posts\/2827\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.ttgnet.com\/journal\/wp-json\/wp\/v2\/media?parent=2827"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ttgnet.com\/journal\/wp-json\/wp\/v2\/categories?post=2827"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ttgnet.com\/journal\/wp-json\/wp\/v2\/tags?post=2827"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}