{"id":11007,"date":"2022-07-13T10:12:19","date_gmt":"2022-07-13T07:12:20","guid":{"rendered":"https:\/\/masterchem.fi\/?post_type=product&#038;p=11007"},"modified":"2022-07-13T10:16:29","modified_gmt":"2022-07-13T07:16:29","slug":"vinsyra-cas-87-69-4","status":"publish","type":"product","link":"https:\/\/masterchem.fi\/sv\/produkt\/vinsyra-cas-87-69-4\/","title":{"rendered":"Vinsyra (CAS 87-69-4)"},"content":{"rendered":"<p> <strong> Information<\/strong> <\/p>\n<p>Branschbranscher: l\u00e4kemedelsindustri, livsmedelsindustri<br \/>\nCAS-i-nummer: 87-69-4<br \/>\nWE-nummer: 201-766-0<br \/>\nKemisk formel: C4H6O6<br \/>\nMolvikt: 150,09 g\/mol<br \/>\nTulltaxekod: 29181200<\/p>\n<p><strong>Andra fysiska egenskaper<\/strong><br \/>\npH: 2,2 (0,1N)<br \/>\nSm\u00e4lt-\/frystemperatur: 168-170\u00b0C<br \/>\nKokpunkt\/intervall: 210\u00b0C<br \/>\nRelativ densitet: 1,76 g\/cm3 (20\u00b0C)<br \/>\nVattenl\u00f6slighet: ca. 1390 g\/l (20 \u00b0C), 3430 g\/l (100 \u00b0C)<\/p>\n","protected":false},"excerpt":{"rendered":"<p><strong>Vinsyra (CAS 87-69-4)<\/strong><\/p>\n<p>Vinsyra, eller 2,3-dihydroxibutandisyra, \u00e4r en organisk syra som f\u00f6rekommer naturligt i m\u00e5nga v\u00e4xter, s\u00e4rskilt vindruvor och tamarind. Det \u00e4r en av syrorna i vin och tills\u00e4tts \u00e4ven i vissa livsmedel f\u00f6r att ge en syrlig smak och anv\u00e4nds som en antioxidant. Salter och estrar av vinsyra kallas dihydroxibutandioater eller, enligt deras triviala namn, tartrater. E-koden som anv\u00e4nds f\u00f6r vinsyra i livsmedel \u00e4r E 334. Den maximala dagliga m\u00e4ngden (ADI) av L-vinsyra f\u00f6r en person \u00e4r 30 mg\/kg\/dag och det g\u00e4ller kakao och chokladprodukter.<\/p>\n<p>Omkring \u00e5r 800 var den persiske alkemisten Jabir ibn Hayyan den f\u00f6rste att separera vinsyra fr\u00e5n kaliumtartrat. Den moderna metoden att isolera vinsyra utvecklades av den svenske kemisten Carl Wilhelm Scheele. Vinsyrans kiralitet uppt\u00e4cktes f\u00f6rst av Jean Baptiste Biot 1832. Louis Pasteur fortsatte denna forskning 1847 genom att studera formerna p\u00e5 vinsyrakristaller, som han fann var asymmetriska. Vinsyra har tre stereoisomerer: naturligt f\u00f6rekommande L-(R,R)-(+)-vinsyra (CAS 87-69-4) och dess spegelbild (enantiomer) D-(S,S)-(\u2212)-vinsyra syra (CAS 147 -71-7), s\u00e5v\u00e4l som optiskt inaktiv mesovinsyra (CAS 147-73-9) och en racemisk blandning k\u00e4nd som paravinsyra eller racemisk syra (CAS 133-37-9).<\/p>\n","protected":false},"featured_media":11010,"template":"","meta":[],"product_brand":[],"product_cat":[106,116,171],"product_tag":[],"class_list":{"0":"post-11007","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-lakemedelsindustri","7":"product_cat-alla-produkter","8":"product_cat-livsmedelsindustrin","10":"first","11":"outofstock","12":"taxable","13":"shipping-taxable","14":"purchasable","15":"product-type-variable","16":"has-default-attributes","17":"rtwpvg-product"},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Vinsyra (CAS 87-69-4) - 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