{"id":250,"date":"2023-01-09T16:30:32","date_gmt":"2023-01-09T16:30:32","guid":{"rendered":"https:\/\/graywolfslair.com\/?p=250"},"modified":"2023-03-21T22:21:30","modified_gmt":"2023-03-21T22:21:30","slug":"8-13-how-much-lpg-mixture-can-i-safely-load-in-my-tank","status":"publish","type":"post","link":"https:\/\/graywolfslair.com\/index.php\/8-essential-oil-safety\/8-13-how-much-lpg-mixture-can-i-safely-load-in-my-tank\/","title":{"rendered":"8.13 How much LPG mixture can I safely load in my tank?"},"content":{"rendered":"\n<p>The question of how much LPG can I safely put in my tank continues to arise. You are of course limited to an 80% fill by volume to allow for thermal expansion, but the actual weight depends on the LPG mixture that you are using..<\/p>\n\n\n\n<p>Here is some math to make that easier for you, using a 50# tank as an example.&nbsp; The 50# rating is what the tanks internal volume full of water would weigh:<\/p>\n\n\n\n<p><strong>Assume:<\/strong><\/p>\n\n\n\n<p>50# of Water weighing&nbsp; .0361 lbs\/in3<\/p>\n\n\n\n<p>50# divided by .0361 = 1385 in3<\/p>\n\n\n\n<p>80% fill by volume or .80 X 1385 =&nbsp;<strong>1108 in3 available.<\/strong><\/p>\n\n\n\n<p>Specific gravity of&nbsp;<strong>butane<\/strong>&nbsp;is .601 or .0361 X .601 =&nbsp;<strong>.021696 lb\/in3<\/strong><\/p>\n\n\n\n<p>Specific gravity of&nbsp;<strong>Isobutane<\/strong>&nbsp;is .563 or .0361 X .563 =&nbsp;<strong>.0203243 lb\/in3<\/strong><\/p>\n\n\n\n<p>Specific gravity of&nbsp;<strong>propane<\/strong>&nbsp;is .495 or .0361 X .495 =&nbsp;<strong>.0178695 lbs\/in3<\/strong><\/p>\n\n\n\n<p><strong>Therefore:<\/strong><\/p>\n\n\n\n<p><strong>100%<\/strong>&nbsp;n-Butane = 1108in3 X .021696 =&nbsp;<strong>24 lbs.<\/strong><\/p>\n\n\n\n<p><strong>100%&nbsp;<\/strong>Iso-butane = 1108 X .0203243 =&nbsp;<strong>22.5 lbs.<\/strong><\/p>\n\n\n\n<p><strong>100%&nbsp;<\/strong>n-propane = 1108in3 X .0178695 =&nbsp;<strong>19.8 lbs<\/strong><\/p>\n\n\n\n<p><strong>&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;<\/strong><\/p>\n\n\n\n<p><strong>70:30<\/strong>&nbsp;= (.7 X &nbsp;1108 in3) = 775.6 in3 butane + (.3 X 1108 in3) = 332.4 in3 propane<\/p>\n\n\n\n<p>(775.6 X .021696) + (332.4 X .0178695) &nbsp;= &nbsp;16.8 lbs + 5.9 =&nbsp;<strong>22.7 lbs total<\/strong><\/p>\n\n\n\n<p><strong>&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;-<\/strong><\/p>\n\n\n\n<p><strong>50:50<\/strong>&nbsp;= (.50 X 1108 in3) = 554 in3 butane and 554 in3 propane<\/p>\n\n\n\n<p>(554 X .021696 lb\/in3) + ( 554 x .0178695 lb\/in3) = 12 lbs butane + 9.9 lbs propane =&nbsp;<strong>21.9 lbs total.<\/strong><\/p>\n\n\n\n<p><strong>&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;<\/strong><\/p>\n\n\n\n<p><strong>20:20:60 =&nbsp;<\/strong>(.20 X 1108 in3) = 221.6 in3 and (.60 X 1108) = 664.8 in3<\/p>\n\n\n\n<p>(221.6 X .0179695) = 3.98 lbs propane + (221.6 X .0203243) = 4.5 lbs Isobutane + ( 664.8 X .021696) =14.4 lbs butane or&nbsp;<strong>22.88 lbs total.<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>The question of how much LPG can I safely put in my tank continues to arise. You are of course limited to an 80% fill [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[43],"tags":[],"class_list":["post-250","post","type-post","status-publish","format-standard","hentry","category-8-essential-oil-safety"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>8.13 How much LPG mixture can I safely load in my tank? - GrayWolf&#039;s Lair<\/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:\/\/graywolfslair.com\/index.php\/8-essential-oil-safety\/8-13-how-much-lpg-mixture-can-i-safely-load-in-my-tank\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"8.13 How much LPG mixture can I safely load in my tank? - GrayWolf&#039;s Lair\" \/>\n<meta property=\"og:description\" content=\"The question of how much LPG can I safely put in my tank continues to arise. 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Thermodynamics as the\u2026","rel":"","context":"In &quot;15. DIY Equipment&quot;","block_context":{"text":"15. DIY Equipment","link":"https:\/\/graywolfslair.com\/index.php\/category\/15-diy-equipment\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":252,"url":"https:\/\/graywolfslair.com\/index.php\/8-essential-oil-safety\/8-14-please-do-not-immolate-yourselves-extracting-bho-indoors\/","url_meta":{"origin":250,"position":1},"title":"8.14 Please do not immolate yourselves extracting BHO Indoors","author":"GrayWolf","date":"January 9, 2023","format":false,"excerpt":"I continue to see brothers posting that they are extracting both open blast and closed loop indoors without an engineered ventilation system.\u00a0 Some arguing that they have done it for years with no issues. LPG combustion requires fuel, oxygen, and an ignition source.\u00a0 If we stay in control of any\u2026","rel":"","context":"In &quot;8. 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Essential Oil Safety","link":"https:\/\/graywolfslair.com\/index.php\/category\/8-essential-oil-safety\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/graywolfslair.com\/wp-content\/uploads\/2023\/04\/burned-legs-jpg.webp?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]},{"id":291,"url":"https:\/\/graywolfslair.com\/index.php\/9-diy-cannamed-production\/9-4-extraction\/9-4-9-alkane-extraction\/9-4-9-2-propane-butane-extractions\/9-4-9-2-2-overview-of-bho-extraction\/","url_meta":{"origin":250,"position":2},"title":"9.4.9.2.2 Overview of BHO extraction","author":"GrayWolf","date":"January 10, 2023","format":false,"excerpt":"The target constituents in cannabis that we covet, are aromatic hydrocarbons soluble in the simple Alkanes n-Butane and n-Propane, as well as their isomers Isobutane and Cyclopropane.\u00a0 BHO extraction involves passing one of those solvents, or a mixture through the plant material and dissolving the trichomes containing the target elements.\u2026","rel":"","context":"In &quot;9.4.9.2 Propane\/Butane extractions&quot;","block_context":{"text":"9.4.9.2 Propane\/Butane extractions","link":"https:\/\/graywolfslair.com\/index.php\/category\/9-diy-cannamed-production\/9-4-extraction\/9-4-9-alkane-extraction\/9-4-9-2-propane-butane-extractions\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/graywolfslair.com\/wp-content\/uploads\/2023\/04\/Mk-VIII-conceptual2-jpg.webp?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/graywolfslair.com\/wp-content\/uploads\/2023\/04\/Mk-VIII-conceptual2-jpg.webp?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/graywolfslair.com\/wp-content\/uploads\/2023\/04\/Mk-VIII-conceptual2-jpg.webp?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/graywolfslair.com\/wp-content\/uploads\/2023\/04\/Mk-VIII-conceptual2-jpg.webp?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/graywolfslair.com\/wp-content\/uploads\/2023\/04\/Mk-VIII-conceptual2-jpg.webp?resize=1050%2C600&ssl=1 3x"},"classes":[]},{"id":567,"url":"https:\/\/graywolfslair.com\/index.php\/15-diy-equipment\/15-25-hot-vapor-assist\/","url_meta":{"origin":250,"position":3},"title":"15.25 Hot vapor assist","author":"GrayWolf","date":"January 11, 2023","format":false,"excerpt":"As the temperature of LPG drops, so does its pressure.\u00a0 The Engineering Tool Box offers a handy reference showing the pressure of different mixes at different temperatures: http:\/\/www.engineeringtoolbox.com\/propane-butane-mix-d_1043.html Here is a summary of its contents: Vapor Pressure in PSIG\u00a0MixturePropane %1007050300Butane %0305070100\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0Temperature\u00a0\u00a0\u00a0\u00a0\u00a0 (F)-44F00000-30F6.80000-20F11.54.7000-10F17.593.5000F24.5157.62.3010F3420.512.35.9020F422817.610.2030F5336.524.515.4040F654832.421.53.150F78564128.56.960F93685036.511.570F1108261451780F1289674542390F150114886630100F1771341047938110F2041581229347 When running subzero temperatures for extraction, tank pressure\u2026","rel":"","context":"In &quot;15. DIY Equipment&quot;","block_context":{"text":"15. DIY Equipment","link":"https:\/\/graywolfslair.com\/index.php\/category\/15-diy-equipment\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/graywolfslair.com\/wp-content\/uploads\/2023\/01\/image-jpeg.webp?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/graywolfslair.com\/wp-content\/uploads\/2023\/01\/image-jpeg.webp?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/graywolfslair.com\/wp-content\/uploads\/2023\/01\/image-jpeg.webp?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/graywolfslair.com\/wp-content\/uploads\/2023\/01\/image-jpeg.webp?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/graywolfslair.com\/wp-content\/uploads\/2023\/01\/image-jpeg.webp?resize=1050%2C600&ssl=1 3x"},"classes":[]},{"id":307,"url":"https:\/\/graywolfslair.com\/index.php\/9-diy-cannamed-production\/9-4-extraction\/9-4-14-active-closed-loop\/9-4-14-1-vapor-boost-for-cold-injections\/","url_meta":{"origin":250,"position":4},"title":"9.4.14.1 Vapor boost for cold injections","author":"GrayWolf","date":"January 10, 2023","format":false,"excerpt":"As the temperature of LPG drops, so does its pressure.\u00a0 The Engineering Tool Box offers a handy reference showing the pressure of different mixes at different temperatures: http:\/\/www.engineeringtoolbox.com\/propane-butane-mix-d_1043.html Here is a summary of its contents: Vapor Pressure in PSIG\u00a0MixturePropane %1007050300Butane %0305070100\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0Temperature\u00a0\u00a0\u00a0\u00a0\u00a0 (F)-44F00000-30F6.80000-20F11.54.7000-10F17.593.5000F24.5157.62.3010F3420.512.35.9020F422817.610.2030F5336.524.515.4040F654832.421.53.150F78564128.56.960F93685036.511.570F1108261451780F1289674542390F150114886630100F1771341047938110F2041581229347 When running subzero temperatures for extraction, tank pressure\u2026","rel":"","context":"In &quot;9.4.14 Active Closed Loop&quot;","block_context":{"text":"9.4.14 Active Closed Loop","link":"https:\/\/graywolfslair.com\/index.php\/category\/9-diy-cannamed-production\/9-4-extraction\/9-4-14-active-closed-loop\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/graywolfslair.com\/wp-content\/uploads\/2023\/04\/Hot-vapor-assist-jpg.webp?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/graywolfslair.com\/wp-content\/uploads\/2023\/04\/Hot-vapor-assist-jpg.webp?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/graywolfslair.com\/wp-content\/uploads\/2023\/04\/Hot-vapor-assist-jpg.webp?resize=525%2C300&ssl=1 1.5x"},"classes":[]},{"id":293,"url":"https:\/\/graywolfslair.com\/index.php\/9-diy-cannamed-production\/9-4-extraction\/9-4-9-alkane-extraction\/9-4-9-2-propane-butane-extractions\/9-4-9-2-3-butane-mystery-oil-removal-using-a-terpenator\/","url_meta":{"origin":250,"position":5},"title":"9.4.9.2.3 Butane Mystery Oil Removal using a Terpenator","author":"GrayWolf","date":"January 10, 2023","format":false,"excerpt":"Closed loop systems like the Terpenator also have the ability to vacuum distill the LPG used in the process, so as to reduce the PPM of components heavier than C-4 Butane and commonly referred to as Mystery Oil. While start with a 99.5% Instrument Grade, we routinely distill regardless of\u2026","rel":"","context":"In &quot;9.4.9.2 Propane\/Butane extractions&quot;","block_context":{"text":"9.4.9.2 Propane\/Butane extractions","link":"https:\/\/graywolfslair.com\/index.php\/category\/9-diy-cannamed-production\/9-4-extraction\/9-4-9-alkane-extraction\/9-4-9-2-propane-butane-extractions\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/graywolfslair.com\/wp-content\/uploads\/2023\/04\/Mk-VA2-013-scaled.webp?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/graywolfslair.com\/wp-content\/uploads\/2023\/04\/Mk-VA2-013-scaled.webp?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/graywolfslair.com\/wp-content\/uploads\/2023\/04\/Mk-VA2-013-scaled.webp?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/graywolfslair.com\/wp-content\/uploads\/2023\/04\/Mk-VA2-013-scaled.webp?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/graywolfslair.com\/wp-content\/uploads\/2023\/04\/Mk-VA2-013-scaled.webp?resize=1050%2C600&ssl=1 3x, https:\/\/i0.wp.com\/graywolfslair.com\/wp-content\/uploads\/2023\/04\/Mk-VA2-013-scaled.webp?resize=1400%2C800&ssl=1 4x"},"classes":[]}],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/graywolfslair.com\/index.php\/wp-json\/wp\/v2\/posts\/250","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/graywolfslair.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/graywolfslair.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/graywolfslair.com\/index.php\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/graywolfslair.com\/index.php\/wp-json\/wp\/v2\/comments?post=250"}],"version-history":[{"count":1,"href":"https:\/\/graywolfslair.com\/index.php\/wp-json\/wp\/v2\/posts\/250\/revisions"}],"predecessor-version":[{"id":251,"href":"https:\/\/graywolfslair.com\/index.php\/wp-json\/wp\/v2\/posts\/250\/revisions\/251"}],"wp:attachment":[{"href":"https:\/\/graywolfslair.com\/index.php\/wp-json\/wp\/v2\/media?parent=250"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/graywolfslair.com\/index.php\/wp-json\/wp\/v2\/categories?post=250"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/graywolfslair.com\/index.php\/wp-json\/wp\/v2\/tags?post=250"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}