{"id":12133,"date":"2020-08-20T15:44:35","date_gmt":"2020-08-20T19:44:35","guid":{"rendered":"https:\/\/www.marinersmuseum.org\/?p=12133"},"modified":"2025-03-27T07:43:51","modified_gmt":"2025-03-27T11:43:51","slug":"rust-never-sleeps","status":"publish","type":"post","link":"https:\/\/www.marinersmuseum.org\/2020\/08\/rust-never-sleeps\/","title":{"rendered":"Desalination: Because rust never sleeps"},"content":{"rendered":"\n<p>\u201cRust never sleeps\u201d was the title of an ICOM-CC conference dedicated to metals conservation in 2011; and it summarizes quite well why the conservation department cannot just leave the lab completely unattended during the current pandemic.<\/p>\n\n\n\n<p>Not only are there a lot of electrochemical treatment set-ups that need constant attention in the \u201cwet lab\u201d and outdoor tanks, but environmental conditions in dry object storage also require our steadfast attention.<\/p>\n\n\n\n<p>In the wet lab, twice a week, we perform manual check of the electrolytic reduction system of all tanks undergoing electrolysis. Although some are connected to a data collecting system, we still do a manual backup check. This allows us to catch poor electrical connections, deteriorations of reference electrodes, possible contacts where there shouldn\u2019t be and address these issues quickly to protect the objects.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\" id=\"attachment_12675\"><img loading=\"lazy\" decoding=\"async\" width=\"2560\" height=\"1920\" data-attachment-id=\"14555\" data-permalink=\"https:\/\/www.marinersmuseum.org\/picture-1-scaled\/\" data-orig-file=\"https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2022\/09\/Picture-1-scaled-1.jpg\" data-orig-size=\"2560,1920\" data-comments-opened=\"0\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"Picture-1-scaled\" data-image-description=\"\" data-image-caption=\"\" data-medium-file=\"https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2022\/09\/Picture-1-scaled-1-300x225.jpg\" data-large-file=\"https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2022\/09\/Picture-1-scaled-1-1024x768.jpg\" src=\"https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2022\/09\/Picture-1-scaled-1.jpg\" alt=\"\" class=\"wp-image-14555\" srcset=\"https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2022\/09\/Picture-1-scaled-1.jpg 2560w, https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2022\/09\/Picture-1-scaled-1-300x225.jpg 300w, https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2022\/09\/Picture-1-scaled-1-1024x768.jpg 1024w, https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2022\/09\/Picture-1-scaled-1-768x576.jpg 768w, https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2022\/09\/Picture-1-scaled-1-1536x1152.jpg 1536w, https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2022\/09\/Picture-1-scaled-1-2048x1536.jpg 2048w, https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2022\/09\/Picture-1-scaled-1-805x604.jpg 805w, https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2022\/09\/Picture-1-scaled-1-620x465.jpg 620w, https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2022\/09\/Picture-1-scaled-1-386x290.jpg 386w, https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2022\/09\/Picture-1-scaled-1-281x211.jpg 281w, https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2022\/09\/Picture-1-scaled-1-180x135.jpg 180w\" sizes=\"auto, (max-width: 2560px) 100vw, 2560px\" \/><figcaption>Treatment solution wicking through the wiring and drying out on the electrical contacts.<\/figcaption><\/figure>\n\n\n\n<p>A major consideration immediately on the heels of the first days of quarantine was a new set-up of the electrolytic reduction system for both of the guns of USS <em>Monitor. <\/em>Major treatment steps had just been completed, boring the concretion from the gun barrels (more about the process <a href=\"https:\/\/www.marinersmuseum.org\/2020\/04\/gun-boring-no-gun-fascinating\/\">here<\/a>), and they had to return to desalination treatment to continue to remove the rust inducing salts that penetrate all materials on a salt-water wreck (see Erik\u2019s <a href=\"https:\/\/www.marinersmuseum.org\/2020\/07\/a-salty-situation\/\">blog<\/a>). Even five months out we are still in the early days of observing how this treatment has accelerated the desalination of these objects. The combination of manual check of the electrolytic reduction systems, pH check, and automatically collected data every 5 seconds allows us to view how changes in the environment (thank you Tropical Storm Isaias\u2026) impact our treatments and how our treatments work over time.<\/p>\n\n\n\n<figure class=\"wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-1 is-layout-flex wp-block-gallery-is-layout-flex\">\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2022\/09\/Picture-2-scaled-1.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"2560\" height=\"1920\" data-attachment-id=\"15126\" data-permalink=\"https:\/\/www.marinersmuseum.org\/2020\/08\/rust-never-sleeps\/picture-2-scaled-1\/\" data-orig-file=\"https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2022\/09\/Picture-2-scaled-1.jpg\" data-orig-size=\"2560,1920\" data-comments-opened=\"0\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"Picture-2-scaled-1\" data-image-description=\"\" data-image-caption=\"\" data-medium-file=\"https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2022\/09\/Picture-2-scaled-1-300x225.jpg\" data-large-file=\"https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2022\/09\/Picture-2-scaled-1-1024x768.jpg\" data-id=\"15126\" src=\"https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2022\/09\/Picture-2-scaled-1.jpg?w=1024\" alt=\"\" class=\"wp-image-15126\" srcset=\"https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2022\/09\/Picture-2-scaled-1.jpg 2560w, https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2022\/09\/Picture-2-scaled-1-300x225.jpg 300w, https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2022\/09\/Picture-2-scaled-1-1024x768.jpg 1024w, https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2022\/09\/Picture-2-scaled-1-768x576.jpg 768w, https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2022\/09\/Picture-2-scaled-1-1536x1152.jpg 1536w, https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2022\/09\/Picture-2-scaled-1-2048x1536.jpg 2048w, https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2022\/09\/Picture-2-scaled-1-805x604.jpg 805w, https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2022\/09\/Picture-2-scaled-1-620x465.jpg 620w, https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2022\/09\/Picture-2-scaled-1-386x290.jpg 386w, https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2022\/09\/Picture-2-scaled-1-281x211.jpg 281w, https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2022\/09\/Picture-2-scaled-1-180x135.jpg 180w\" sizes=\"auto, (max-width: 2560px) 100vw, 2560px\" \/><\/a><figcaption>Electrolysis set up in progress around one of the Dahlgren guns.<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2022\/09\/Picture-3-scaled-1.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"1920\" height=\"2560\" data-attachment-id=\"15125\" data-permalink=\"https:\/\/www.marinersmuseum.org\/2020\/08\/rust-never-sleeps\/picture-3-scaled-1\/\" data-orig-file=\"https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2022\/09\/Picture-3-scaled-1.jpg\" data-orig-size=\"1920,2560\" data-comments-opened=\"0\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"Picture-3-scaled-1\" data-image-description=\"\" data-image-caption=\"\" data-medium-file=\"https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2022\/09\/Picture-3-scaled-1-225x300.jpg\" data-large-file=\"https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2022\/09\/Picture-3-scaled-1-768x1024.jpg\" data-id=\"15125\" src=\"https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2022\/09\/Picture-3-scaled-1.jpg?w=768\" alt=\"\" class=\"wp-image-15125\" srcset=\"https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2022\/09\/Picture-3-scaled-1.jpg 1920w, https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2022\/09\/Picture-3-scaled-1-225x300.jpg 225w, https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2022\/09\/Picture-3-scaled-1-768x1024.jpg 768w, https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2022\/09\/Picture-3-scaled-1-1152x1536.jpg 1152w, https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2022\/09\/Picture-3-scaled-1-1536x2048.jpg 1536w, https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2022\/09\/Picture-3-scaled-1-805x1073.jpg 805w, https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2022\/09\/Picture-3-scaled-1-620x827.jpg 620w, https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2022\/09\/Picture-3-scaled-1-386x515.jpg 386w, https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2022\/09\/Picture-3-scaled-1-281x375.jpg 281w, https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2022\/09\/Picture-3-scaled-1-180x240.jpg 180w\" sizes=\"auto, (max-width: 1920px) 100vw, 1920px\" \/><\/a><figcaption>Anode made of stainless steel mesh surrounding a Dahlgren gun for electrolysis.<\/figcaption><\/figure>\n<\/figure>\n\n\n\n<p>Periodic testing of the tank treatment solutions requires multiple staff and multiple days to complete a circuit of sampling, testing the samples, and data analysis, and combines in person work and remote work. These tests performed every two months allow us to determine immediate and long-term treatment decisions. Immediate decisions may be to switch the treatment solution, or to add additional chemicals to the treatment bath. Long-term treatment decisions may be to continue disassembly of a large object, to do dry-ice blasting to remove concretion, or to begin the final treatment steps and start drying the objects.<\/p>\n\n\n\n<p>Other small tasks we perform twice a week in the wet lab are: verifying tank levels and topping them off if need be, fixing possible cracked containers or leaking tanks, and equipment inspections (crane, reverse osmosis system salts level, compressed air system\u2026)<\/p>\n\n\n\n<p>For USS <em>Monitor<\/em> artifacts that have completed conservation and are dry, as described by Lesley in her last <a href=\"https:\/\/www.marinersmuseum.org\/2020\/08\/agents-of-decay-theyre-everywhere\/\">blog<\/a>, relative humidity (RH) surrounding artifacts is fundamental to the stability of their materials. In the same vein, some of you may remember the desiccant hammocks hanging in our <a href=\"https:\/\/www.marinersmuseum.org\/2018\/03\/good-things-in-stor-age-for-the-uss-monitor-collection\/\">Delta storage cabinets<\/a> used to maintain a stable environment. Although these cabinets hold an excellent microenvironment, no seal is perfect, and we have to keep an eye on changes in RH inside over time. The desiccant (drying agent) we use to regulate the RH is a material called silica-gel which loses its efficiency over time as it absorbs moisture. It will eventually reach a point where it will no longer take up moisture which is referred to as being \u201cexhausted\u201d. Fortunately, we can \u201cregenerate\u201d the gel by drying it out in an oven. So, part of our weekly routine includes to switch out exhausted gel for regenerated material and setting the used gel in shallow baking pans and placing them in a scientific oven for about 8 hours at low temperature.<\/p>\n\n\n\n<p>In addition to the permanent collection storage, reduced-staffing measures due to COVID-19 have meant that some treatments are currently paused, and associated objects placed in temporary controlled-storage until we can get back to them. Just like the storage cabinets (or even more so really!), these artifacts need to be checked periodically to ensure their microenvironments remain in tolerance.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\" id=\"attachment_12678\"><img loading=\"lazy\" decoding=\"async\" width=\"1920\" height=\"2560\" data-attachment-id=\"14557\" data-permalink=\"https:\/\/www.marinersmuseum.org\/picture-4-scaled\/\" data-orig-file=\"https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2022\/09\/Picture-4-scaled-1.jpg\" data-orig-size=\"1920,2560\" data-comments-opened=\"0\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"Picture-4-scaled\" data-image-description=\"\" data-image-caption=\"\" data-medium-file=\"https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2022\/09\/Picture-4-scaled-1-225x300.jpg\" data-large-file=\"https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2022\/09\/Picture-4-scaled-1-768x1024.jpg\" src=\"https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2022\/09\/Picture-4-scaled-1.jpg\" alt=\"\" class=\"wp-image-14557\" srcset=\"https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2022\/09\/Picture-4-scaled-1.jpg 1920w, https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2022\/09\/Picture-4-scaled-1-225x300.jpg 225w, https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2022\/09\/Picture-4-scaled-1-768x1024.jpg 768w, https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2022\/09\/Picture-4-scaled-1-1152x1536.jpg 1152w, https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2022\/09\/Picture-4-scaled-1-1536x2048.jpg 1536w, https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2022\/09\/Picture-4-scaled-1-805x1073.jpg 805w, https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2022\/09\/Picture-4-scaled-1-620x827.jpg 620w, https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2022\/09\/Picture-4-scaled-1-386x515.jpg 386w, https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2022\/09\/Picture-4-scaled-1-281x375.jpg 281w, https:\/\/www.marinersmuseum.org\/wp-content\/uploads\/2022\/09\/Picture-4-scaled-1-180x240.jpg 180w\" sizes=\"auto, (max-width: 1920px) 100vw, 1920px\" \/><figcaption>Temporary controlled-storage around an amphora from TMMP\u2019s collection.<\/figcaption><\/figure>\n\n\n\n<p>Whether it is an immediate treatment decision, or a long-term treatment decision, we are vigilantly working to continue the conservation of these objects and ensure they are safe during these challenging times!<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u201cRust never sleeps\u201d was the title of an ICOM-CC conference dedicated to metals conservation in 2011; and it summarizes quite well why the conservation department cannot just leave the lab completely unattended during the current pandemic. Not only are there a lot of electrochemical treatment set-ups that need constant attention in the \u201cwet lab\u201d and [&hellip;]<\/p>\n","protected":false},"author":13,"featured_media":15126,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"byline":{"profiles":[{"type":"byline_id","atts":{"term_id":130,"post_id":8374}},{"type":"byline_id","atts":{"term_id":100,"post_id":4704}},{"type":"byline_id","atts":{"term_id":97,"post_id":4694}},{"type":"byline_id","atts":{"term_id":133,"post_id":8453}}]},"jetpack_post_was_ever_published":false,"ep_exclude_from_search":false,"mariners_open_graph_description":"","mariners_open_graph_image":0,"mariners_open_graph_title":"","mariners_featured_image_focal_point":{"x":0.5,"y":0.5},"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[1],"tags":[22,18,19],"prominence":[],"audience_motivation":[61,64],"byline":[97,100,130,133],"class_list":["post-12133","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized","tag-civil-war","tag-conservation","tag-uss-monitor"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v26.9 (Yoast SEO v26.9) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Desalination: Because rust never sleeps - The Mariners&#039; Museum and Park<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.marinersmuseum.org\/2020\/08\/rust-never-sleeps\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Desalination: Because rust never sleeps\" \/>\n<meta property=\"og:description\" content=\"\u201cRust never sleeps\u201d was the title of an ICOM-CC conference dedicated to metals conservation in 2011; and it summarizes quite well why the conservation department cannot just leave the lab completely unattended during the current pandemic. 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