{"product_id":"natriumcarbonat-frei-cz-50g","title":"Carbonat de sodiu liber CZ 50g","description":"\u003cp\u003e\u003cstrong\u003eCarbonat de sodiu anhidru pur (Na2CO3)\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eInformații tehnice despre reactivul chimic:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003cspan\u003eDenumire chimică: Carbonat de sodiu anhidru\u003c\/span\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cspan\u003eFormulă chimică: Na2CO3\u003c\/span\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cspan\u003eNumăr CAS: 497-19-8\u003c\/span\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cspan\u003eNumăr CE: 207-838-8\u003c\/span\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cspan\u003eMasă molară: 105,99 g\/mol\u003c\/span\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cspan\u003eStare fizică: Pulbere solidă, albă, cristalină\u003c\/span\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cspan\u003eCuloare: alb\u003c\/span\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cspan\u003eMiros: inodor\u003c\/span\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cspan\u003eValoare pH (50 g\/l, 25°C): aprox. 11,5\u003c\/span\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cspan\u003ePunct de topire: aprox. 891 °C\u003c\/span\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cspan\u003ePunct de fierbere: aprox. 1600 °C (descompunere)\u003c\/span\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cspan\u003ePunct de inflamabilitate: neaplicabil\u003c\/span\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cspan\u003eTemperatură de autoaprindere: neaplicabil\u003c\/span\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cspan\u003eLimite de explozie: neaplicabil\u003c\/span\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cspan\u003ePresiune de vapori: indisponibilă\u003c\/span\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cspan\u003eDensitate: aprox. 2,53 g\/cm³ (20°C)\u003c\/span\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cspan\u003eDensitate în vrac: aprox. 1100 kg\/m³\u003c\/span\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cspan\u003eSolubilitate în apă: aprox. 210 g\/l (20°C)\u003c\/span\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cspan\u003eSolubilitate în solvenți organici: solubil în glicerină, insolubil în acetonă și alcool\u003c\/span\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cspan\u003ePuritate: min. 99,5 %\u003c\/span\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cspan\u003eSubstanțe insolubile în apă: max. 0,02 %.\u003c\/span\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cspan\u003ePierdere la calcinare: max. 1,0 %\u003c\/span\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cspan\u003eCloruri (Cl): max. 0,015 %.\u003c\/span\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cspan\u003eFosfați (PO4): max. 0,005 %.\u003c\/span\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cspan\u003eSulfat total (SO4): max. 0,01 %.\u003c\/span\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cspan\u003eMetale grele (Pb): max. 0,001 %.\u003c\/span\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cspan\u003eArsen (As): max. 0,0002%.\u003c\/span\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cspan\u003eMagneziu (Mg): max. 0,01%.\u003c\/span\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cspan\u003ePotasiu (K): max. 0,04%.\u003c\/span\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cspan\u003eCalciu (Ca): max. 0,02%.\u003c\/span\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cspan\u003eFier (Fe): max. 0,001 %\u003c\/span\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cspan\u003eCod produs: CHEM-428105601\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eExemple de aplicații profesionale în diverse industrii:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLaboratoare analitice:\u003c\/strong\u003e prepararea soluțiilor standard și a tampoanelor alcaline.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIndustria chimică:\u003c\/strong\u003e reactiv în reacțiile care necesită un mediu alcalin.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIndustria sticlei:\u003c\/strong\u003e materie primă pentru topirea articolelor din sticlă tehnică și de laborator.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIndustria hârtiei:\u003c\/strong\u003e utilizat în procesele de albire și în tratarea fibrelor de celuloză.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDidactică:\u003c\/strong\u003e utilizat pe scară largă în exercițiile de chimie ca reactiv alcalin.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eIndicații de pericol (H):\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eH319 - irită ochii.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp style=\"font-weight: bold;\"\u003e\u003cstrong\u003eIndicații de siguranță (P):\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eP305+P351+P338 - LA CONTACT CU OCHII: Se spală delicat cu apă câteva minute. Îndepărtați lentilele de contact, dacă sunt prezente și ușor de îndepărtat. Continuați să clătiți.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cb\u003eCondiții de depozitare recomandate:\u003c\/b\u003e\u003c\/p\u003e\n\u003col\u003e\n  \u003cli\u003ePăstrați într-un recipient bine închis.\u003c\/li\u003e\n  \u003cli\u003eProtejați de umiditate (substanță higroscopică).\u003c\/li\u003e\n  \u003cli\u003ePăstrați într-o încăpere uscată și bine ventilată.\u003c\/li\u003e\n  \u003cli\u003eProtejați înainte de contactul cu acizii și sursele de contaminare.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Biolaboratorium","offers":[{"title":"Default Title","offer_id":55537991549276,"sku":"CHEM-428105601-50g","price":11.75,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0693\/0491\/0119\/files\/b3d9cf9ec14e3c5a5f34cb7718d7d07e.jpg?v=1758553283","url":"https:\/\/biolaboratoriuhot.com\/ro\/products\/natriumcarbonat-frei-cz-50g","provider":"Biolaboratorium","version":"1.0","type":"link"}