{"product_id":"natriumpyrosulfit-czda-1-kg","title":"Sodium Pyrosulfite CZDA 1 kg","description":"\u003cp\u003e\u003cstrong\u003eSodium pyrosulfite\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eTechnical information about chemical reagents:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003cspan\u003eChemical formula: Na₂S₂O₅.\u003c\/span\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cspan\u003eCAS number: 7681-57-4\u003c\/span\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cspan\u003eEC number: 231-673-0\u003c\/span\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cspan\u003eSynonyms: Sodium metabisulfite, Sodium(IV) disulfate\u003c\/span\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cspan\u003eMolar mass: 190.1 g\/mol\u003c\/span\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cspan\u003eSpecies: p.d.a.\u003c\/span\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cspan\u003ePurity: min. 98.0 %\u003c\/span\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cspan\u003eWater-insoluble substances: max. 0.005 %.\u003c\/span\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cspan\u003eChlorides (Cl): max. 0.005 %.\u003c\/span\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cspan\u003eHeavy metals (Pb): max. 0.002 %.\u003c\/span\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cspan\u003eArsenic (As): max. 0.00005 %\u003c\/span\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cspan\u003eIron (Fe): max. 0.0005 %\u003c\/span\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cspan\u003ePhysical state: solid\u003c\/span\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cspan\u003eAppearance: white, crystalline powder\u003c\/span\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cspan\u003eColor: white\u003c\/span\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cspan\u003eOdor: sulfurous\u003c\/span\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cspan\u003epH value: 3.5 - 5.5 (50 g\/l H₂O, 20°C)\u003c\/span\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cspan\u003eMelting point: 150°C (decomposition)\u003c\/span\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cspan\u003eBoiling point: not applicable\u003c\/span\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cspan\u003eAuto-ignition temperature: not applicable\u003c\/span\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cspan\u003eFlash point: not applicable\u003c\/span\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cspan\u003eExplosion limits: not applicable\u003c\/span\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cspan\u003eVapor pressure: not available\u003c\/span\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cspan\u003eDensity: 1.48 g\/cm³ (20°C)\u003c\/span\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cspan\u003eBulk density: 1000-1200 kg\/m³\u003c\/span\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cspan\u003eSolubility in water: 650 g\/l (20°C)\u003c\/span\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cspan\u003eSolubility in organic solvents: unlimited in glycerin, slightly in alcohol\u003c\/span\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cspan\u003eLog P (n-octanol\/water): -3.7\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eExamples of professional applications in various industries:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAnalytical laboratories:\u003c\/strong\u003e Reducing agent in chemical reactions and reagent in qualitative and quantitative analyses.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChemical industry:\u003c\/strong\u003e Used in neutralization and reduction processes and as an oxygen scavenger.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTextile and paper industry:\u003c\/strong\u003e Bleaching and preserving agent in technological processes.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTechnical water treatment:\u003c\/strong\u003e Reducing agent for removing free chlorine in industrial circuits.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eHazard statements on the product label:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\n \u003cspan\u003e\u003cstrong\u003eH302:\u003c\/strong\u003e Harmful if swallowed.\u003c\/span\u003e\u003cbr\u003e\n \u003cspan\u003e\u003cstrong\u003eH318\u003c\/strong\u003e: Causes serious eye damage.\u003c\/span\u003e\u003cbr\u003e\n \u003cspan\u003e\u003cstrong\u003eEUH031:\u003c\/strong\u003e Contact with acids liberates toxic gas.\u003c\/span\u003e\u003cbr\u003e\n\u003c\/p\u003e\n\n\u003cp style=\"font-weight: bold;\"\u003e\u003cstrong\u003eSafety instructions on the product label:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\n \u003cstrong\u003eP280:\u003c\/strong\u003e Wear protective gloves\/protective clothing\/eye protection\/face protection.\u003cbr\u003e\n \u003cstrong\u003eP305 + P351 + P338:\u003c\/strong\u003e IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing.\u003cbr\u003e\n \u003cstrong\u003eP313:\u003c\/strong\u003e Get medical advice\/medical attention.\u003cbr\u003e\n\u003c\/p\u003e\n\n\u003cp\u003e\u003cb\u003eRecommended storage conditions:\u003c\/b\u003e\u003c\/p\u003e\n\u003col\u003e\n  \u003cli\u003eKeep in a cool, dry, and well-ventilated place.\u003c\/li\u003e\n  \u003cli\u003eProtect from moisture and contact with acids - risk of SO₂ release.\u003c\/li\u003e\n  \u003cli\u003eStore in tightly closed, corrosion-resistant containers.\u003c\/li\u003e\n  \u003cli\u003eAvoid storage near strong oxidizing agents.\u003c\/li\u003e\n  \u003cli\u003eObserve general rules for the storage of inorganic reducing agents.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Biolaboratorium","offers":[{"title":"Default Title","offer_id":55537747624284,"sku":"CHEM-118066503-1kg","price":33.78,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0693\/0491\/0119\/files\/978ad0daedb0887b2ab7807d663ca7ac.jpg?v=1758550253","url":"https:\/\/biolaboratoriuhot.com\/en\/products\/natriumpyrosulfit-czda-1-kg","provider":"Biolaboratorium","version":"1.0","type":"link"}