{"product_id":"cbecsdef","title":"DEF (N,N-Diethylformamide, \u003e99.5%) as Battery Electrolyte Co-Solvent, 100-500 g\/bottle, CBECSDEF","description":"\u003cp\u003eDEF (N,N-Diethylformamide, C5H11N) is a polar, high-boiling-point organic compound occasionally evaluated in specialized electrochemical research and polymer electrolyte processing (such as dissolving polyacrylonitrile or preparing specialized gel\/solid polymer matrices and polyMOFs).  When considered as a co-solvent or processing medium in advanced battery configurations, it exhibits distinct solvent and electrochemical behaviors: (1) \u003cstrong\u003eHigh Dielectric Constant \u0026amp; Solvation Power\u003c\/strong\u003e: As a dialkylformamide, DEF is strongly polar with a high donor number, making it exceptionally effective at dissolving various lithium\/sodium salts, coordination polymers, and binder systems (such as polyvinylidene fluoride or polyacrylonitrile derivatives). (2) \u003cstrong\u003eHigh Boiling Point \u0026amp; Thermal Stability\u003c\/strong\u003e: With a boiling point significantly higher than standard linear or cyclic carbonate solvents (like DEC or DMC), it possesses low volatility under ambient pressure conditions.\u003c\/p\u003e\n\u003ctable width=\"100%\" style=\"width: 100%; height: 340.925px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 35.6px;\"\u003e\n\u003ctd style=\"width: 33.6331%; height: 35.6px;\"\u003e\u003cem\u003ePart Number\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0072%; height: 35.6px;\"\u003e\n\u003cp\u003e\u003cspan\u003eCBECSDEF (C-BECS-DEF)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 35.6px;\"\u003e\n\u003ctd style=\"width: 33.6331%; height: 35.6px;\"\u003e\u003cem\u003eCAS\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0072%; height: 35.6px;\"\u003e\n\u003cp\u003e\u003cspan\u003e617-84-5\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 142.725px;\"\u003e\n\u003ctd style=\"width: 33.6331%; height: 142.725px;\"\u003e\u003cem\u003eChemical Formula\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0072%; height: 142.725px;\"\u003e\n\u003cp\u003e\u003cspan\u003eHCON(C\u003c\/span\u003e\u003csub\u003e2\u003c\/sub\u003e\u003cspan\u003eH\u003c\/span\u003e\u003csub\u003e5\u003c\/sub\u003e\u003cspan\u003e)\u003c\/span\u003e\u003csub\u003e2\u003c\/sub\u003e\u003c\/p\u003e\n\u003cdiv style=\"text-align: start;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0774\/6591\/1526\/files\/CBECSDEF_Structure_100x100.jpg?v=1791249539\" style=\"margin-bottom: 16px; float: none;\"\u003e\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 35.6px;\"\u003e\n\u003ctd style=\"width: 33.6331%; height: 35.6px;\"\u003e\u003cem\u003eAppearance\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0072%; height: 35.6px;\"\u003e\n\u003cp\u003e\u003cspan\u003eColorless Liquid\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 10px;\"\u003e\n\u003ctd style=\"width: 33.6331%; height: 10px;\"\u003e\u003cem\u003ePurity\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0072%; height: 10px;\"\u003e\n\u003cp\u003e\u003cspan\u003e\u0026gt;99.5% (Battery Grade)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 33.6331%; height: 19.6px;\"\u003e\u003cem\u003eMolecular Weight\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0072%; height: 19.6px;\"\u003e\u003cspan\u003e101.15 g\/mol\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 22.6px;\"\u003e\n\u003ctd style=\"width: 33.6331%; height: 22.6px;\"\u003e\u003cem\u003eDensity\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0072%; height: 22.6px;\"\u003e\u003cspan\u003e0.908 g\/mL at 25 °C (lit.)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 33.6331%; height: 19.6px;\"\u003e\u003cem\u003eBoiling Point\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0072%; height: 19.6px;\"\u003e\u003cspan\u003e176-177 °C (lit.)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 33.6331%; height: 19.6px;\"\u003e\u003cem\u003ePackage Size\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 66.0072%; height: 19.6px;\"\u003e\u003cspan\u003e100 g, 200 g, and 500 g\/bottle\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eNotes\u003c\/strong\u003e: Please store the DEF solvent in a dry place (glovebox or dryroom is the best option)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eReferences\u003c\/strong\u003e: \u003c\/span\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/pubs.acs.org\/jacsat\/article-abstract\/147\/31\/27802\/3738519\/Cosolvent-Electrolyte-Design-for-High-Voltage?redirectedFrom=fulltext\"\u003e\u003cspan\u003eP. Hei, et al. Cosolvent Electrolyte Design for High-Voltage Aqueous Zinc–Sulfur Batteries, Journal American Chemical Society (2025) 147 (31): 27802–27811.\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003ca href=\"https:\/\/www.cell.com\/iscience\/fulltext\/S2589-0042(26)01153-3\"\u003eA. Y. Sun, et al. Revolutionary horizons in nonaqueous and aqueous-nonaqueous electrolyte design for safer high-performance zinc-ion batteries, iScience, 2026, 29, 115778\u003c\/a\u003e \u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"MKL","offers":[{"title":"100 g","offer_id":67631826174182,"sku":"CBECSDEF100","price":69.0,"currency_code":"USD","in_stock":true},{"title":"200 g","offer_id":67631826206950,"sku":"CBECSDEF200","price":119.0,"currency_code":"USD","in_stock":true},{"title":"500 g","offer_id":67631826239718,"sku":"CBECSDEF500","price":249.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0774\/6591\/1526\/files\/CBECSDEF_main.jpg?v=1791249540","url":"https:\/\/echemsupplies.com\/products\/cbecsdef","provider":"EChem Supplies","version":"1.0","type":"link"}