{"id":114329,"date":"2022-02-04T01:22:51","date_gmt":"2022-02-04T00:22:51","guid":{"rendered":"https:\/\/material-properties.org\/acetylene-densite-capacite-thermique-conductivite-thermique\/"},"modified":"2022-02-04T01:22:51","modified_gmt":"2022-02-04T00:22:51","slug":"acetylene-densite-capacite-thermique-conductivite-thermique","status":"publish","type":"post","link":"https:\/\/material-properties.org\/fr\/acetylene-densite-capacite-thermique-conductivite-thermique\/","title":{"rendered":"Ac\u00e9tyl\u00e8ne &#8211; Densit\u00e9 &#8211; Capacit\u00e9 thermique &#8211; Conductivit\u00e9 thermique"},"content":{"rendered":"<h2><span>\u00c0 propos de l&rsquo;ac\u00e9tyl\u00e8ne<\/span><\/h2>\n<p><span>L&rsquo;ac\u00e9tyl\u00e8ne est un gaz incolore et hautement inflammable avec une odeur \u00e9th\u00e9r\u00e9e.\u00a0L&rsquo;ac\u00e9tyl\u00e8ne est un hydrocarbure et l&rsquo;alcyne le plus simple de formule C2H2.\u00a0L&rsquo;ac\u00e9tyl\u00e8ne commercial aura une odeur d&rsquo;ail.\u00a0Il est exp\u00e9di\u00e9 avec de l&rsquo;ac\u00e9tone dissoute sous sa forme gazeuse.\u00a0Utilisations typiques du soudage oxyac\u00e9tyl\u00e9nique et de la synth\u00e8se chimique.\u00a0<div class=\"su-divider su-divider-style-dotted\" style=\"margin:25px 0;border-width:3px;border-color:#999999\"><\/div><\/span><\/p>\n<p><a href=\"https:\/\/material-properties.org\/wp-content\/uploads\/2021\/03\/acetylene-properties-density-strength-price.png\"><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter wp-image-108219\" src=\"https:\/\/material-properties.org\/wp-content\/uploads\/2021\/03\/acetylene-properties-density-strength-price.png\" alt=\"ac\u00e9tyl\u00e8ne propri\u00e9t\u00e9s densit\u00e9 r\u00e9sistance prix\" width=\"500\" height=\"500\" srcset=\"https:\/\/material-properties.org\/wp-content\/uploads\/2021\/03\/acetylene-properties-density-strength-price.png 1000w, https:\/\/material-properties.org\/wp-content\/uploads\/2021\/03\/acetylene-properties-density-strength-price-300x300.png 300w, https:\/\/material-properties.org\/wp-content\/uploads\/2021\/03\/acetylene-properties-density-strength-price-150x150.png 150w, https:\/\/material-properties.org\/wp-content\/uploads\/2021\/03\/acetylene-properties-density-strength-price-768x768.png 768w\" sizes=\"(max-width: 500px) 100vw, 500px\" \/><\/a><\/p>\n<p><span><div class=\"su-divider su-divider-style-dotted\" style=\"margin:25px 0;border-width:3px;border-color:#999999\"><\/div><\/span><\/p>\n<h3 style=\"text-align: center;\"><span>R\u00e9sum\u00e9<\/span><\/h3>\n<table class=\"a\">\n<tbody>\n<tr class=\"b\">\n<td style=\"text-align: center;\"><span>Nom<\/span><\/td>\n<td style=\"text-align: center;\"><strong><span>Ac\u00e9tyl\u00e8ne<\/span><\/strong><\/td>\n<\/tr>\n<tr class=\"c\">\n<td style=\"text-align: center;\"><span>Phase \u00e0 STP<\/span><\/td>\n<td style=\"text-align: center;\"><strong><span>gazeux<\/span><\/strong><\/td>\n<\/tr>\n<tr class=\"c\">\n<td style=\"text-align: center;\"><span>Densit\u00e9<\/span><\/td>\n<td style=\"text-align: center;\"><strong><span>1,1 kg\/m3<\/span><\/strong><\/td>\n<\/tr>\n<tr class=\"c\">\n<td style=\"text-align: center;\"><span>R\u00e9sistance \u00e0 la traction ultime<\/span><\/td>\n<td style=\"text-align: center;\"><strong><span>N \/ A<\/span><\/strong><\/td>\n<\/tr>\n<tr class=\"c\">\n<td style=\"text-align: center;\"><span>Limite d&rsquo;\u00e9lasticit\u00e9<\/span><\/td>\n<td style=\"text-align: center;\"><strong><span>N \/ A<\/span><\/strong><\/td>\n<\/tr>\n<tr class=\"c\">\n<td style=\"text-align: center;\"><span>Module d&rsquo;\u00e9lasticit\u00e9 de Young<\/span><\/td>\n<td style=\"text-align: center;\"><strong><span>N \/ A<\/span><\/strong><\/td>\n<\/tr>\n<tr class=\"c\">\n<td style=\"text-align: center;\"><span>Duret\u00e9 Brinell<\/span><\/td>\n<td style=\"text-align: center;\"><strong><span>N \/ A<\/span><\/strong><\/td>\n<\/tr>\n<tr class=\"c\">\n<td style=\"text-align: center;\"><span>Point de fusion<\/span><\/td>\n<td style=\"text-align: center;\"><strong><span>-82 \u00b0C<\/span><\/strong><\/td>\n<\/tr>\n<tr class=\"c\">\n<td style=\"text-align: center;\"><span>Conductivit\u00e9 thermique<\/span><\/td>\n<td style=\"text-align: center;\"><strong><span>0,024 W\/mK<\/span><\/strong><\/td>\n<\/tr>\n<tr class=\"c\">\n<td style=\"text-align: center;\"><span>Capacit\u00e9 thermique<\/span><\/td>\n<td style=\"text-align: center;\"><strong><span style=\"text-align: start;\"><span>1674 J\/g\u00b7K<\/span><\/span><\/strong><\/td>\n<\/tr>\n<tr class=\"c\">\n<td style=\"text-align: center;\"><span>Prix<\/span><\/td>\n<td style=\"text-align: center;\"><strong><span>14 $\/kg<\/span><\/strong><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><span><div class=\"su-divider su-divider-style-dotted\" style=\"margin:25px 0;border-width:3px;border-color:#999999\"><\/div><\/span><\/p>\n<h2><span>Densit\u00e9 de l&rsquo;ac\u00e9tyl\u00e8ne<\/span><\/h2>\n<p class=\"wp-caption-text\"><span>Les densit\u00e9s typiques de diverses substances sont \u00e0 la pression atmosph\u00e9rique.\u00a0<\/span><a href=\"https:\/\/material-properties.org\/what-is-density-physics-definition\/\"><strong><span>La densit\u00e9<\/span><\/strong><\/a><span>\u00a0\u00a0est d\u00e9finie comme la\u00a0\u00a0<\/span><strong><span>masse par unit\u00e9 de volume<\/span><\/strong><span>\u00a0.\u00a0C&rsquo;est une\u00a0\u00a0<\/span><strong><span>propri\u00e9t\u00e9 intensive<\/span><\/strong><span>\u00a0, qui est d\u00e9finie math\u00e9matiquement comme la masse divis\u00e9e par le volume :\u00a0\u00a0<\/span><strong><span>\u03c1 = m\/V<\/span><\/strong><\/p>\n<p><span>En d&rsquo;autres termes, la densit\u00e9 (\u03c1) d&rsquo;une substance est la masse totale (m) de cette substance divis\u00e9e par le volume total (V) occup\u00e9 par cette substance.\u00a0L&rsquo;unit\u00e9 SI standard est\u00a0\u00a0<\/span><strong><span>le kilogramme par m\u00e8tre cube<\/span><\/strong><span>\u00a0\u00a0(\u00a0<\/span><strong><span>kg\/m\u00a0<\/span><sup><span>3<\/span><\/sup><\/strong><span>\u00a0).\u00a0L&rsquo;unit\u00e9 anglaise standard est\u00a0\u00a0<\/span><strong><span>la masse de livres par pied cube<\/span><\/strong><span>\u00a0\u00a0(\u00a0<\/span><strong><span>lbm\/ft\u00a0<\/span><sup><span>3<\/span><\/sup><\/strong><span>\u00a0).<\/span><\/p>\n<p><span>La densit\u00e9 de l&rsquo;ac\u00e9tyl\u00e8ne est\u00a0<\/span><strong><span>de 1,1 kg\/m\u00a0<\/span><sup><span>3<\/span><\/sup><span>\u00a0.<\/span><\/strong><\/p>\n<p><span><div class=\"su-divider su-divider-style-dotted\" style=\"margin:25px 0;border-width:3px;border-color:#999999\"><\/div> <div  class=\"lgc-column lgc-grid-parent lgc-grid-33 lgc-tablet-grid-33 lgc-mobile-grid-100 lgc-equal-heights \"><div  class=\"inside-grid-column\">\n<p><span><\/span><\/p><\/div><\/div> <div  class=\"lgc-column lgc-grid-parent lgc-grid-33 lgc-tablet-grid-33 lgc-mobile-grid-100 lgc-equal-heights \"><div  class=\"inside-grid-column\">\n<h3 style=\"text-align: center;\"><span>Densit\u00e9 des mat\u00e9riaux<\/span><\/h3>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"wp-image-108113 size-medium aligncenter\" src=\"https:\/\/material-properties.org\/wp-content\/uploads\/2021\/02\/Material-Table-Density-300x179.png\" alt=\"Tableau des mat\u00e9riaux - Densit\u00e9 des mat\u00e9riaux\" width=\"300\" height=\"179\" srcset=\"https:\/\/material-properties.org\/wp-content\/uploads\/2021\/02\/Material-Table-Density-300x179.png 300w, https:\/\/material-properties.org\/wp-content\/uploads\/2021\/02\/Material-Table-Density-1024x610.png 1024w, https:\/\/material-properties.org\/wp-content\/uploads\/2021\/02\/Material-Table-Density-768x458.png 768w, https:\/\/material-properties.org\/wp-content\/uploads\/2021\/02\/Material-Table-Density.png 1368w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/p>\n<p><span><\/span><\/p><\/div><\/div> <div  class=\"lgc-column lgc-grid-parent lgc-grid-33 lgc-tablet-grid-33 lgc-mobile-grid-100 lgc-equal-heights \"><div  class=\"inside-grid-column\">\n<p><span><\/span><\/p><\/div><\/div> <div class=\"su-divider su-divider-style-dotted\" style=\"margin:25px 0;border-width:3px;border-color:#999999\"><\/div><\/span><\/p>\n<h2><span>Propri\u00e9t\u00e9s thermiques de l&rsquo;ac\u00e9tyl\u00e8ne<\/span><\/h2>\n<h3><span>Ac\u00e9tyl\u00e8ne &#8211; Point de fusion<\/span><\/h3>\n<p><strong><span>Le point de fusion de l&rsquo;ac\u00e9tyl\u00e8ne est de -82 \u00b0C<\/span><\/strong><span>\u00a0.<\/span><\/p>\n<p><span>Notez que ces points sont associ\u00e9s \u00e0 la pression atmosph\u00e9rique standard.\u00a0En g\u00e9n\u00e9ral, la\u00a0\u00a0<\/span><strong><span>fusion<\/span><\/strong><span>\u00a0\u00a0est un\u00a0\u00a0<\/span><strong><span>changement de phase<\/span><\/strong><span>\u00a0\u00a0d&rsquo;une substance de la phase solide \u00e0 la phase liquide.\u00a0Le\u00a0\u00a0<\/span><strong><span>point de fusion<\/span><\/strong><span>\u00a0\u00a0d&rsquo;une substance est la temp\u00e9rature \u00e0 laquelle ce changement de phase se produit.\u00a0Le\u00a0\u00a0<\/span><strong><span>point de fusion\u00a0<\/span><\/strong><span>\u00a0d\u00e9finit \u00e9galement une condition dans laquelle le solide et le liquide peuvent exister en \u00e9quilibre.\u00a0Pour divers compos\u00e9s chimiques et alliages, il est difficile de d\u00e9finir le point de fusion, car il s&rsquo;agit g\u00e9n\u00e9ralement d&rsquo;un m\u00e9lange de divers \u00e9l\u00e9ments chimiques.<\/span><\/p>\n<h3><span>Ac\u00e9tyl\u00e8ne &#8211; Conductivit\u00e9 thermique<\/span><\/h3>\n<p><span>La conductivit\u00e9 thermique de l&rsquo;ac\u00e9tyl\u00e8ne est de\u00a0<\/span><strong><span>0,024\u00a0<\/span><\/strong><strong><span>W\/(m\u00b7K)<\/span><\/strong><span>\u00a0.<\/span><\/p>\n<p><span>Les caract\u00e9ristiques de transfert de chaleur d&rsquo;un mat\u00e9riau solide sont mesur\u00e9es par une propri\u00e9t\u00e9 appel\u00e9e la\u00a0\u00a0<\/span><strong><span>conductivit\u00e9 thermique<\/span><\/strong><span>\u00a0, k (ou \u03bb), mesur\u00e9e en\u00a0\u00a0<\/span><strong><span>W\/mK<\/span><\/strong><span>\u00a0.\u00a0C&rsquo;est une mesure de la capacit\u00e9 d&rsquo;une substance \u00e0 transf\u00e9rer de la chaleur \u00e0 travers un mat\u00e9riau par\u00a0\u00a0<\/span><a href=\"https:\/\/www.thermal-engineering.org\/what-is-thermal-conduction-heat-conduction-definition\/\"><span>conduction<\/span><\/a><span>\u00a0.\u00a0Notez que\u00a0\u00a0<\/span><a href=\"https:\/\/www.thermal-engineering.org\/what-is-fouriers-law-of-thermal-conduction-definition\/\"><strong><span>la loi de Fourier<\/span><\/strong><\/a><span>\u00a0\u00a0s&rsquo;applique \u00e0 toute mati\u00e8re, quel que soit son \u00e9tat (solide, liquide ou gazeux), par cons\u00e9quent, elle est \u00e9galement d\u00e9finie pour les liquides et les gaz.<\/span><\/p>\n<p><span>La\u00a0\u00a0<\/span><a href=\"https:\/\/www.thermal-engineering.org\/what-is-thermal-conductivity-definition\/\"><strong><span>conductivit\u00e9 thermique<\/span><\/strong><\/a><span>\u00a0\u00a0de la plupart des liquides et des solides varie avec la temp\u00e9rature.\u00a0Pour les vapeurs, cela d\u00e9pend aussi de la pression.\u00a0En g\u00e9n\u00e9ral:<\/span><\/p>\n<p><a href=\"https:\/\/material-properties.org\/wp-content\/uploads\/2019\/05\/thermal-conductivity-definition.png\"><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter size-full wp-image-88791\" src=\"https:\/\/material-properties.org\/wp-content\/uploads\/2019\/05\/thermal-conductivity-definition.png\" alt=\"conductivit\u00e9 thermique - d\u00e9finition\" width=\"225\" height=\"75\" \/><\/a><\/p>\n<p><span>La plupart des mat\u00e9riaux sont presque homog\u00e8nes, nous pouvons donc g\u00e9n\u00e9ralement \u00e9crire\u00a0\u00a0<\/span><strong><em><span>k = k (T)<\/span><\/em><\/strong><span>\u00a0.\u00a0Des d\u00e9finitions similaires sont associ\u00e9es aux conductivit\u00e9s thermiques dans les directions y et z (ky, kz), mais pour un mat\u00e9riau isotrope, la conductivit\u00e9 thermique est ind\u00e9pendante de la direction de transfert, kx = ky = kz = k.<\/span><\/p>\n<h3><span>Ac\u00e9tyl\u00e8ne &#8211; Chaleur sp\u00e9cifique<\/span><\/h3>\n<p><strong><span>La chaleur sp\u00e9cifique de l&rsquo;ac\u00e9tyl\u00e8ne est de 1674\u00a0<\/span><\/strong><strong><span>\u00a0J\/g K<\/span><\/strong><span>\u00a0.<\/span><\/p>\n<p><strong><span>La chaleur sp\u00e9cifique, ou capacit\u00e9 thermique sp\u00e9cifique,\u00a0<\/span><\/strong><span>\u00a0est une propri\u00e9t\u00e9 li\u00e9e \u00e0\u00a0<strong><a href=\"https:\/\/www.thermal-engineering.org\/what-is-internal-energy-thermal-energy-definition\/\">l&rsquo;\u00e9nergie interne<\/a><\/strong>\u00a0\u00a0tr\u00e8s importante en thermodynamique.\u00a0Les\u00a0\u00a0<strong>propri\u00e9t\u00e9s intensives\u00a0\u00a0<\/strong><strong><em>c\u00a0<\/em><\/strong><strong><em><sub>v<\/sub><\/em><\/strong>\u00a0\u00a0et\u00a0\u00a0<strong><em>c\u00a0<\/em><\/strong><strong><em><sub>p<\/sub><\/em><\/strong>\u00a0\u00a0sont d\u00e9finies pour des substances compressibles pures et simples comme des d\u00e9riv\u00e9es partielles de l&rsquo;\u00a0\u00a0<strong>\u00e9nergie interne\u00a0\u00a0<\/strong><strong><em>u(T, v)<\/em><\/strong>\u00a0\u00a0et de\u00a0 l&rsquo;\u00a0<strong>enthalpie\u00a0\u00a0<\/strong><strong><em>h(T, p)<\/em><\/strong>\u00a0, respectivement\u00a0:<\/span><strong>\u00a0<\/strong><\/p>\n<p><a href=\"https:\/\/material-properties.org\/wp-content\/uploads\/2019\/05\/Specific-Heat-at-Constant-Volume-and-Constant-Pressure.png\"><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter size-full wp-image-87687\" src=\"https:\/\/material-properties.org\/wp-content\/uploads\/2019\/05\/Specific-Heat-at-Constant-Volume-and-Constant-Pressure.png\" alt=\"\" width=\"106\" height=\"138\" \/><\/a><\/p>\n<p><span>o\u00f9 les indices\u00a0\u00a0<\/span><strong><span>v<\/span><\/strong><span>\u00a0\u00a0et\u00a0\u00a0<\/span><strong><span>p<\/span><\/strong><span>\u00a0\u00a0d\u00e9signent les variables maintenues fixes lors de la diff\u00e9renciation.\u00a0Les propri\u00e9t\u00e9s\u00a0\u00a0<\/span><strong><span>c\u00a0<\/span><sub><span>v<\/span><\/sub>\u00a0<\/strong><span>\u00a0et\u00a0\u00a0<\/span><strong><span>c\u00a0<\/span><sub><span>p<\/span><\/sub><\/strong><span>\u00a0\u00a0sont appel\u00e9es\u00a0\u00a0<\/span><strong><span>chaleurs sp\u00e9cifiques\u00a0<\/span><\/strong><span>\u00a0(ou\u00a0\u00a0<\/span><strong><span>capacit\u00e9s calorifiques<\/span><\/strong><span>\u00a0) car, dans certaines conditions particuli\u00e8res, elles relient le changement de temp\u00e9rature d&rsquo;un syst\u00e8me \u00e0 la quantit\u00e9 d&rsquo;\u00e9nergie ajout\u00e9e par transfert de chaleur.\u00a0Leurs unit\u00e9s SI sont\u00a0\u00a0<\/span><strong><span>J\/kg K<\/span><\/strong><span>\u00a0\u00a0ou\u00a0\u00a0<\/span><strong><span>J\/mol K<\/span><\/strong><span>\u00a0.<\/span><\/p>\n<p><span><div class=\"su-divider su-divider-style-dotted\" style=\"margin:25px 0;border-width:3px;border-color:#999999\"><\/div> <div  class=\"lgc-column lgc-grid-parent lgc-grid-33 lgc-tablet-grid-33 lgc-mobile-grid-100 lgc-equal-heights \"><div  class=\"inside-grid-column\">\n<h3 style=\"text-align: center;\"><span>Point de fusion des mat\u00e9riaux<\/span><\/h3>\n<p><a href=\"https:\/\/material-properties.org\/melting-point-of-materials\/\"><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter wp-image-108050 size-medium\" src=\"https:\/\/material-properties.org\/wp-content\/uploads\/2021\/02\/Material-Table-Metling-Point-300x183.png\" alt=\"Tableau des mat\u00e9riaux - Point de fusion\" width=\"300\" height=\"183\" \/><\/a><span><\/span><\/p><\/div><\/div> <div  class=\"lgc-column lgc-grid-parent lgc-grid-33 lgc-tablet-grid-33 lgc-mobile-grid-100 lgc-equal-heights \"><div  class=\"inside-grid-column\">\n<h3 style=\"text-align: center;\"><span>Conductivit\u00e9 thermique des mat\u00e9riaux<\/span><\/h3>\n<p><a href=\"https:\/\/material-properties.org\/thermal-conductivity-of-materials\/\"><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter wp-image-108055 size-medium\" src=\"https:\/\/material-properties.org\/wp-content\/uploads\/2021\/02\/Material-Table-Thermal-Conductivity-300x180.png\" alt=\"Tableau des mat\u00e9riaux - Conductivit\u00e9 thermique\" width=\"300\" height=\"180\" \/><\/a><span><\/span><\/p><\/div><\/div> <div  class=\"lgc-column lgc-grid-parent lgc-grid-33 lgc-tablet-grid-33 lgc-mobile-grid-100 lgc-equal-heights \"><div  class=\"inside-grid-column\">\n<h3 style=\"text-align: center;\"><span>Capacit\u00e9 calorifique des mat\u00e9riaux<\/span><\/h3>\n<p><a href=\"https:\/\/material-properties.org\/heat-capacity-of-materials\/\"><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter wp-image-108063 size-medium\" src=\"https:\/\/material-properties.org\/wp-content\/uploads\/2021\/02\/Material-Table-Heat-Capacity-300x179.png\" alt=\"Tableau des mat\u00e9riaux - Capacit\u00e9 calorifique\" width=\"300\" height=\"179\" \/><\/a><\/p>\n<h3 style=\"text-align: center;\"><\/h3>\n<p><span><\/span><\/p><\/div><\/div> <div class=\"su-divider su-divider-style-dotted\" style=\"margin:25px 0;border-width:3px;border-color:#999999\"><\/div><\/span><\/p>\n<p><span><div  class=\"lgc-column lgc-grid-parent lgc-grid-33 lgc-tablet-grid-33 lgc-mobile-grid-100 lgc-equal-heights \"><div  class=\"inside-grid-column\">\n<h3 style=\"text-align: center;\"><span>La r\u00e9sistance des mat\u00e9riaux<\/span><\/h3>\n<p><a href=\"https:\/\/material-properties.org\/strength-of-materials-tensile-yield\/\"><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter wp-image-108070 size-medium\" src=\"https:\/\/material-properties.org\/wp-content\/uploads\/2021\/02\/Material-Table-Strength-of-Materials-300x182.png\" alt=\"Tableau des mat\u00e9riaux - R\u00e9sistance des mat\u00e9riaux\" width=\"300\" height=\"182\" \/><\/a><span><\/span><\/p><\/div><\/div> <div  class=\"lgc-column lgc-grid-parent lgc-grid-33 lgc-tablet-grid-33 lgc-mobile-grid-100 lgc-equal-heights \"><div  class=\"inside-grid-column\">\n<h3 style=\"text-align: center;\"><span>\u00c9lasticit\u00e9 des mat\u00e9riaux<\/span><\/h3>\n<p><a href=\"https:\/\/material-properties.org\/elasticity-of-materials\/\"><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter wp-image-108080 size-medium\" src=\"https:\/\/material-properties.org\/wp-content\/uploads\/2021\/02\/Material-Table-Elasticity-of-Materials-300x185.png\" alt=\"Tableau des mat\u00e9riaux - \u00c9lasticit\u00e9 des mat\u00e9riaux\" width=\"300\" height=\"185\" \/><\/a><span><\/span><\/p><\/div><\/div> <div  class=\"lgc-column lgc-grid-parent lgc-grid-33 lgc-tablet-grid-33 lgc-mobile-grid-100 lgc-equal-heights \"><div  class=\"inside-grid-column\">\n<h3 style=\"text-align: center;\"><span>Duret\u00e9 des mat\u00e9riaux<\/span><\/h3>\n<p><a href=\"https:\/\/material-properties.org\/hardness-of-materials-brinell-mohs\/\"><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter wp-image-108085 size-medium\" src=\"https:\/\/material-properties.org\/wp-content\/uploads\/2021\/02\/Material-Table-Hardness-of-Materials-300x182.png\" alt=\"Tableau des mat\u00e9riaux - Duret\u00e9 des mat\u00e9riaux\" width=\"300\" height=\"182\" \/><\/a><span>\u00a0 <\/span><\/p><\/div><\/div> <div class=\"su-divider su-divider-style-dotted\" style=\"margin:25px 0;border-width:3px;border-color:#999999\"><\/div><\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u00c0 propos de l&rsquo;ac\u00e9tyl\u00e8ne L&rsquo;ac\u00e9tyl\u00e8ne est un gaz incolore et hautement inflammable avec une odeur \u00e9th\u00e9r\u00e9e.\u00a0L&rsquo;ac\u00e9tyl\u00e8ne est un hydrocarbure et l&rsquo;alcyne le plus simple de formule C2H2.\u00a0L&rsquo;ac\u00e9tyl\u00e8ne commercial aura une odeur d&rsquo;ail.\u00a0Il est exp\u00e9di\u00e9 avec de l&rsquo;ac\u00e9tone dissoute sous sa forme gazeuse.\u00a0Utilisations typiques du soudage oxyac\u00e9tyl\u00e9nique et de la synth\u00e8se chimique.\u00a0 R\u00e9sum\u00e9 Nom Ac\u00e9tyl\u00e8ne Phase &#8230; <a title=\"Ac\u00e9tyl\u00e8ne &#8211; Densit\u00e9 &#8211; Capacit\u00e9 thermique &#8211; Conductivit\u00e9 thermique\" class=\"read-more\" href=\"https:\/\/material-properties.org\/fr\/acetylene-densite-capacite-thermique-conductivite-thermique\/\">Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.2 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Ac\u00e9tyl\u00e8ne | Densit\u00e9, capacit\u00e9 thermique, conductivit\u00e9 thermique<\/title>\n<meta name=\"description\" content=\"L&#039;ac\u00e9tyl\u00e8ne est un gaz incolore et hautement inflammable \u00e0 l&#039;odeur \u00e9th\u00e9r\u00e9e.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/material-properties.org\/fr\/acetylene-densite-capacite-thermique-conductivite-thermique\/\" \/>\n<meta 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