[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"doc-detail-138958-en":3,"doc-seo-138958-105":30,"detail-sidebar-cat-0-en-105":89},{"code":4,"msg":5,"data":6},0,"success",{"doc_id":7,"user_id":8,"nickname":9,"user_avatar":10,"doc_module":4,"category_id":11,"category_name":12,"doc_title":13,"doc_description":14,"doc_content":15,"file_id":16,"file_url":17,"file_type":18,"file_size":19,"view_count":4,"is_deleted":4,"is_public":20,"is_downloadable":20,"audit_status":20,"page_count":21,"language":22,"language_code":23,"site_id":24,"html_lang":23,"table_of_contents":25,"faqs":26,"seo_title":27,"seo_description":14,"update_tm":28,"read_time":29},138958,8796093062539,"8796093062539","",7,"Healthcare","Acetylene 2.6 - Safety Data Sheet","Acetylene 2.6 (C2H2), ethine, is provided as a dissolved gas for safe storage and transportation in cylinders with a porous mass and solvent. The document lists essential properties such as flammability, colorlessness, and a possible exothermic self-ignition behavior, along with risk symbols and regulatory identifiers. It details composition purity (≥99.6 vol-%), key impurity limits (PH3, H2S), cylinder/valve material compatibility, and hazardous effects including explosive decomposition under energy input.","Acetylene 2.6 C₂ H₂  \nEthine  \nMarking CAS  \nCharacterization acc. ADR  \nCylinder Marking  \n74-86-2  \nUN 1001 ACETYLENE, DISSOLVED, 2. 1,(B/D)  \nShoulder color: marron  \nEssential properties  \ndissolved gas, lighter than air, colorless, flammable, possibly exothermic self-ignition  \nSymbols of risks  \nPhysical Properties  \nmolecular weight  \ngas density at 0°C and 1,013 bar density ratio to air  \nvapour pressure at 20°C  \n26,038 kg/kmol  \n1,1775 kg/m³ 0,9066  \n43,36 bar  \nFor additional safety information see safety data sheet *-C2H2-001  \nValves / Manifolds  \nValve connection [acc. to](acc. to) national regulations  \nRecommended Manifolds  \n| Specification / receptacles |  |  |  |\n| --- | --- | --- | --- |\n|  |  | Acetylene 2.6 |  |\n| Composition |  |  |  |\n| C₂H₂ | ≥ | 99.6 | Vol.-% |\n| Impurities |  |  |  |\n| PH₃ | ≤ | 10 | ppmv |\n| H₂S | ≤ | 10 | ppmv |\n| Cylinder / Contents |  |  |  |\n| F 10 1,8kg |  | 1.8 | kg |\n| F 50 10kg |  | 10.0 | kg |\n| F 50*12 105kg |  | 105.0 | kg |\n\nRemarks  \nApplications:  \nFuel gas for atomic absorption spectroscopy (AAS) and flame photometry For reasons of quality no filling of customer owned cylinders.  \nFor reasons of stability acetylene is dissolved under pressure in a solvent (acetone or DMF) . During withdrawal the gas contains solvent vapours.  \nMesser Group GmbH Messer-Platz 1 65812 Bad Soden  \n[https://www.messergroup.com](https://www.messergroup.com)  \nVersion 1.0  \nAcetylene 2.6 C₂ H₂  \nEthine  \nMarking CAS  \nCharacterization acc. ADR  \nCylinder Marking  \n74-86-2  \nUN 1001 ACETYLENE, DISSOLVED, 2. 1,(B/D)  \nShoulder color: marron  \nEssential properties  \ndissolved gas, lighter than air, colorless, flammable, possibly exothermic self-ignition  \nSymbols of risks  \nFor additional safety information see safety data sheet *-C2H2-001  \nDescription  \nImpurities in acetylene like PH3, H2S, AsH3 and NH3 cause the typical odor (\"carbide-like\") . In pure state colourless, slightly etherial smelling, strong narcotic acting gas. Under impact of energy (local heating, UV-radiation, pressure bumps) explosive disaggregation into the elements. Explosive acetylides are built up in contact with copper, silver, mercury and their salts and solutions.  \nSafe storing and transportation as dissolved gas under pressure in cylinders with a porous mass, imbued with a solvent.  \nMaterials  \nCylinders and Valves: any usual materials; except brass or copper(-alloys) with Cu> 70 %  \nSeals: PTFE, PCTFE, PVDF, PE, PP  \n\n| Physical Properties |  |  |  |\n| --- | --- | --- | --- |\n| molecular weight | 26,038 kg/kmol | vapour pressure at 20 °C |  |\n| critical point |  | gas density at 0 °C and 1 ,013 bar | 1,1775 kg/m³ |\n| temperature | 308,33 K | density ratio to air | 0,9066 |\n| Pressure | 61,39 bar | gas density at 15 °C and 1 bar | 1,0996 kg/m³ |\n| density | 0,231 kg/l | conversion factor |  |\n| triple point |  | liquid at Ts to m³ gas (15°C, 1 bar) |  |\n| temperature | 192,60 K | virial coefficient |  |\n| Pressure | 1,282 bar | Bn at 0°C | -8,4 * 10⁻³ bar⁻¹ |\n| boiling point |  | B30 at 30°C | -5,8 *10⁻³ bar⁻¹ |\n| temperature | 189,35 K; -83,8 °C | gaseous state at 25 °C and 1 bar |  |\n| liquid density |  | specific heat capacity cp | 1,687 kJ/kg K |\n| evaporation heat | 801,89 kJ/kg | thermal conductivity | 215 *10-4 W/m K |\n|  |  | dynam. viscosity | 10,46 * 10-6 Ns/m² |\n\nMesser Group GmbH Messer-Platz 1 65812 Bad Soden  \n[https://www.messergroup.com](https://www.messergroup.com)  \nVersion 1.0","cbCaiaQhnDztt47O","https://ap.wps.com/l/cbCaiaQhnDztt47O","pdf",195844,1,2,"English","en",105,"# Essential identification and characterization\n## Regulatory identifiers and cylinder marking\n## Essential properties and risk symbols\n# Composition and cylinder contents\n## Purity and impurity specifications\n## Cylinder sizes and mass of contents\n# Applications and handling guidance\n## Uses in AAS and flame photometry\n## Solvent dissolution and withdrawal effects\n# Safety description and storage/transport\n## Hazardous odor and explosive disaggregation\n## Storage conditions in cylinders\n# Materials and compatibility\n## Approved materials for cylinders, valves, and seals\n# Physical properties (key parameters)","[{\"question\":\"What is Acetylene 2.6 and how is it stored in cylinders?\",\"answer\":\"Acetylene 2.6 is acetylene provided as a dissolved gas under pressure in cylinders with a porous mass and a solvent. This approach supports safe storage and transportation.\"},{\"question\":\"What is the specified purity and what impurity limits are given?\",\"answer\":\"The document specifies acetylene purity at ≥99.6 vol-%. It also sets impurity limits such as PH3 ≤ 10 ppmv and H2S ≤ 10 ppmv.\"},{\"question\":\"Why must storage avoid certain materials like copper or brass?\",\"answer\":\"Explosive acetylides can form when acetylene contacts copper, silver, mercury and their salts/solutions. Therefore, cylinders and valve components should not use brass or copper-based materials with Cu\\u003e70%.\"}]","Acetylene 2.6 - Safety Data Sheet | PDF",1787492866,5,{"code":4,"msg":31,"data":32},"ok",{"site_id":24,"language":23,"slug":33,"title":13,"keywords":10,"description":14,"schema_data":34,"social_meta":84,"head_meta":86,"extra_data":88,"updated_unix":28},"acetylene-26-safety-data-sheet",{"@graph":35,"@context":83},[36,52,66],{"@type":37,"itemListElement":38},"BreadcrumbList",[39,43,46,49],{"item":40,"name":41,"@type":42,"position":20},"https://docshare.wps.com","Home","ListItem",{"item":44,"name":45,"@type":42,"position":21},"https://docshare.wps.com/document/","Document",{"item":47,"name":12,"@type":42,"position":48},"https://docshare.wps.com/document/healthcare/",3,{"item":50,"name":13,"@type":42,"position":51},"https://docshare.wps.com/document/acetylene-26-safety-data-sheet/138958/",4,{"url":50,"name":13,"@type":53,"author":54,"headline":13,"publisher":56,"fileFormat":59,"inLanguage":23,"description":14,"dateModified":60,"datePublished":60,"encodingFormat":59,"isAccessibleForFree":61,"interactionStatistic":62},"DigitalDocument",{"name":9,"@type":55},"Person",{"url":40,"name":57,"@type":58},"DocShare","Organization","application/pdf","2026-08-23",true,{"@type":63,"interactionType":64,"userInteractionCount":4},"InteractionCounter",{"@type":65},"ViewAction",{"@type":67,"mainEntity":68},"FAQPage",[69,75,79],{"name":70,"@type":71,"acceptedAnswer":72},"What is Acetylene 2.6 and how is it stored in cylinders?","Question",{"text":73,"@type":74},"Acetylene 2.6 is acetylene provided as a dissolved gas under pressure in cylinders with a porous mass and a solvent. This approach supports safe storage and transportation.","Answer",{"name":76,"@type":71,"acceptedAnswer":77},"What is the specified purity and what impurity limits are given?",{"text":78,"@type":74},"The document specifies acetylene purity at ≥99.6 vol-%. It also sets impurity limits such as PH3 ≤ 10 ppmv and H2S ≤ 10 ppmv.",{"name":80,"@type":71,"acceptedAnswer":81},"Why must storage avoid certain materials like copper or brass?",{"text":82,"@type":74},"Explosive acetylides can form when acetylene contacts copper, silver, mercury and their salts/solutions. 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