{"id":9438,"date":"2024-08-24T14:00:28","date_gmt":"2024-08-24T14:00:28","guid":{"rendered":"https:\/\/longchangextracts.com\/?p=9438"},"modified":"2024-08-24T14:00:28","modified_gmt":"2024-08-24T14:00:28","slug":"food-desiccants","status":"publish","type":"post","link":"https:\/\/longchangextracts.com\/da\/food-desiccants\/","title":{"rendered":"Hvad er nogle af de mest almindelige t\u00f8rremidler til f\u00f8devarer?"},"content":{"rendered":"<p><strong>Hvad er t\u00f8rremiddel lavet af<\/strong><\/p>\n<p>1 \u3001 Surt <strong>t\u00f8rremiddel:<\/strong> koncentreret svovlsyre, fosforpentoxid, bruges til t\u00f8rring af sure eller neutrale gasser, hvoraf koncentreret svovlsyre ikke kan t\u00f8rre sure gasser af hydrogensulfid, hydrogenbromid og hydrogenjodid med st\u00e6rk reducerende egenskab; fosforpentoxid kan ikke t\u00f8rre ammoniak;<\/p>\n<p>2\u3001Neutral <strong>t\u00f8rremiddel:<\/strong> Vandfrit calciumklorid, almindelig gas kan t\u00f8rres, men vandfrit calciumklorid kan ikke t\u00f8rre ammoniak og ethanol;<\/p>\n<p>3 \u3001 Alkalisk <strong>t\u00f8rremiddel:<\/strong> sodakalk (blanding af CaO og NaOH, KOH), br\u00e6ndt kalk (CaO), NaOH i fast form, bruges til at t\u00f8rre neutral eller alkalisk gas.<\/p>\n<p><strong>Typer af t\u00f8rremiddel til f\u00f8devarer<\/strong><\/p>\n<p><strong>1 \u3001 T\u00f8rremiddel af kalk<\/strong><br \/>\nHovedkomponenten i dette t\u00f8rremiddel er calciumoxid, og dets vandabsorberende evne realiseres gennem kemisk reaktion, s\u00e5 vandabsorptionen er irreversibel.<\/p>\n<p>Uanset hvor h\u00f8j eller lav luftfugtigheden i det eksterne milj\u00f8 er, kan det holde fugtabsorptionskapaciteten st\u00f8rre end 35% af sin egen v\u00e6gt, og det er mere velegnet til konservering ved lav temperatur med fremragende t\u00f8rrings- og fugtabsorptionseffekt, og prisen er lav.<\/p>\n<p>Men br\u00e6ndt kalk producerer calciumhydroxid, n\u00e5r det m\u00f8der vand, og kan frigive en masse energi, som kan risikere at eksplodere i et begr\u00e6nset rum. Hvis den rystes af en ekstern kraft for at \u00f8ge kontaktomr\u00e5det, vil eksplosionstiden v\u00e6re hurtigere og hurtigere. Det sker ofte, at b\u00f8rn eller \u00e6ldre f\u00e5r ondt i \u00f8jnene, men det er gradvist blevet elimineret.<\/p>\n<p><strong>2, t\u00f8rremiddel af silicagel<\/strong><\/p>\n<p>Silicagel er en slags h\u00f8j mikropor\u00f8s struktur af vandholdig silica, ikke-giftig, smagl\u00f8s, lugtfri, kemisk stabil, den interne netv\u00e6rksstruktur af meget fine porer, disse porer kan absorbere vand og gennem sin fysiske tiltr\u00e6kning holde p\u00e5 vand med st\u00e6rke hygroskopiske egenskaber.<\/p>\n<p>P\u00e5 nuv\u00e6rende tidspunkt er t\u00f8rremiddel af silicagel meget sikkert, og det er ogs\u00e5 det eneste t\u00f8rremiddel, der har best\u00e5et den amerikanske FDA-certificering og kan bruges direkte i kontakt med medicin.<\/p>\n<p><strong>3 \u3001 T\u00f8rremiddel af fiber<\/strong><br \/>\nDette t\u00f8rremiddel er lavet af rene naturlige plantefibre gennem en s\u00e6rlig proces. Blandt dem er is\u00e6r det laminerede fibert\u00f8rremiddelark praktisk og praktisk og optager ikke plads.<\/p>\n<p>Dets fugtabsorberende kapacitet n\u00e5r op p\u00e5 100% af dets egen v\u00e6gt, hvilket ikke kan sammenlignes med almindeligt t\u00f8rremiddel. Desuden er produktet sikkert og hygiejnisk med en moderat pris, hvilket er det ideelle valg for mange biologiske produkter, helsekost og medicin.<\/p>\n<p><strong>4\u3001Montmorillonit t\u00f8rremiddel<\/strong><br \/>\nDette t\u00f8rremiddel anvender rent naturligt r\u00e5materiale bentonit, som er gr\u00f8nt, ikke-giftigt, smagl\u00f8st og uskadeligt for menneskekroppen.<\/p>\n<p>Overfladen af montmorillonit er ladet med negative anomalier, s\u00e5 der findes et elektrostatisk felt p\u00e5 overfladen af hele partiklen, hvilket uundg\u00e5eligt f\u00e5r dens dipol\u00e6re vandmolekyler til at blive orienteret arrangement, derudover er hydrering af udskiftelige kationer mellem lagene af montmorillonit ikke kun hurtig adsorptionshastighed og h\u00f8j adsorptionskapacitet, men ogs\u00e5 ikke-giftig, smagl\u00f8s, ikke-kontakt \u00e6tsende, ikke-milj\u00f8forurening, is\u00e6r anvendt til f\u00f8devareemballage, som er harml\u00f8s for den menneskelige krop.<\/p>\n<p><strong>5 \u3001 T\u00f8rremiddel af calciumklorid<\/strong><br \/>\nDet vigtigste r\u00e5materiale i dette t\u00f8rremiddel er calciumchlorid, som kemisk kan reagere vandmolekyler med calciumchlorid, absorbere fugt fra det omgivende milj\u00f8 og omdanne det til gel for at opn\u00e5 adsorptionseffekt.<br \/>\nDet indre materiale i calciumklorid-t\u00f8rremiddel er i form af pulver, hvis b\u00f8rn river pakken med calciumklorid-t\u00f8rremiddel op, er pulveret af calciumklorid indeni let at komme ind i \u00f8jnene, hvilket vil for\u00e5rsage r\u00f8dme og h\u00e6velse af \u00f8jenl\u00e5g, hvide forbr\u00e6ndinger p\u00e5 hornhinden og bindehinden og andre symptomer, hvilket vil for\u00e5rsage hornhindeleukom efter heling i det lette tilf\u00e6lde og p\u00e5virke synet, og i det tunge tilf\u00e6lde vil det for\u00e5rsage blindhed. Selv om calciumklorid kan bruges som tils\u00e6tningsstof til f\u00f8devarer, er t\u00f8rremiddel af calciumklorid ikke direkte spiseligt.<\/p>","protected":false},"excerpt":{"rendered":"<p>What is desiccant made of 1\u3001Acidic desiccant: concentrated sulfuric acid, phosphorus pentoxide, used for drying acidic or neutral gases, of which concentrated sulfuric acid can not dry acidic gases of hydrogen sulfide, hydrogen bromide and hydrogen iodide with strong reducing property; phosphorus pentoxide can not dry ammonia; 2\u3001Neutral desiccant: anhydrous calcium chloride, general gas can [&hellip;]<\/p>","protected":false},"author":4,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[46],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v23.0 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>What are a few common food desiccants? - China Chemical Manufacturer<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/longchangextracts.com\/da\/food-desiccants\/\" \/>\n<meta property=\"og:locale\" content=\"da_DK\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"What are a few common food desiccants? 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