{"id":4867,"date":"2025-07-25T07:31:09","date_gmt":"2025-07-25T07:31:09","guid":{"rendered":"https:\/\/jinancuchem.com\/?post_type=product&p=4867"},"modified":"2025-07-25T07:31:09","modified_gmt":"2025-07-25T07:31:09","slug":"maleic-anhydride","status":"publish","type":"product","link":"https:\/\/jinancuchem.com\/fr\/produit\/maleic-anhydride\/","title":{"rendered":"Anhydride mal\u00e9ique"},"content":{"rendered":"

CAS<\/b><\/strong>: 108-31-6<\/strong>
\n<\/strong>Alias<\/b><\/strong>: Anhydride de l'acide mal\u00e9ique ; anhydride toxique<\/strong>
\n<\/strong>Formule mol\u00e9culaire<\/b><\/strong>: C\u2084H\u2082O\u2083<\/strong>
\n<\/strong>Masse mol\u00e9culaire relative<\/b><\/strong>: 98.06<\/strong><\/p>\n

1. Propri\u00e9t\u00e9 du produit<\/b><\/strong><\/h3>\n

L'anhydride mal\u00e9ique, abr\u00e9g\u00e9 en EMA, \u00e9galement connu sous le nom d'\"anhydride trans-but\u00e8nedio\u00efque\", est l'anhydride de l'acide trans-but\u00e8nedio\u00efque. \u00c0 temp\u00e9rature ambiante, il s'agit d'un solide incolore ou blanc au go\u00fbt aigre, dont la formule mol\u00e9culaire est C4H2O3. Son poids mol\u00e9culaire est de 98,06. Il est obtenu sous forme de cristaux en forme d'aiguilles \u00e0 partir du chloroforme ou de l'\u00e9ther. Le point de fusion est de 60\u00b0C, le point d'\u00e9bullition est de 82\u00b0C (1,8665 kPa) et la densit\u00e9 relative est de 1,31460. Il est soluble dans l'ac\u00e9tone, le chloroforme et l'\u00e9ther, et l\u00e9g\u00e8rement soluble dans l'\u00e9ther de p\u00e9trole. Il se dissout dans l'eau pour former de l'acide trans-but\u00e8nedio\u00efque, forme des esters lorsqu'il est dissous dans l'alcool et peut subir des r\u00e9actions de synth\u00e8se di\u00e9nique avec des compos\u00e9s contenant des doubles liaisons conjugu\u00e9es. Il est toxique et irrite fortement les muqueuses.<\/p>\n

2. Norme de qualit\u00e9<\/b><\/strong><\/h3>\n\n\n\n\n\n\n\n\n\n\n
Param\u00e8tres<\/b><\/strong><\/td>\nSp\u00e9cifications<\/b><\/strong><\/td>\n<\/tr>\n
Apparence<\/td>\nSolide cristallin blanc<\/td>\n<\/tr>\n
Puret\u00e9 (GC)<\/td>\n\u2265 99.5%<\/td>\n<\/tr>\n
Acidit\u00e9 (en tant qu'acide ac\u00e9tique)<\/td>\n\u2264 0,005%<\/td>\n<\/tr>\n
Teneur en eau<\/td>\n\u2264 0,1%<\/td>\n<\/tr>\n
Densit\u00e9 (20\u00b0C, g\/cm\u00b3)<\/td>\n1,48 g\/cm\u00b3<\/td>\n<\/tr>\n
Indice de r\u00e9fraction<\/td>\n1.420-1.424<\/td>\n<\/tr>\n
R\u00e9sidu d'\u00e9vaporation<\/td>\n\u2264 0,005%<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

 <\/p>\n

3. Champ d'application et utilisation<\/b><\/strong><\/h3>\n

L'adiponitrile est utilis\u00e9 dans la synth\u00e8se des di\u00e8nes, dans la production de m\u00e9dicaments, de pesticides, de colorants, etc. <\/sub>Il est \u00e9galement utilis\u00e9 dans la production de r\u00e9sines de polyester, de r\u00e9sines alkydes, d'acide mal\u00e9ique et d'autres acides organiques. Il est \u00e9galement utilis\u00e9 comme conservateur pour les graisses et les huiles et constitue une mati\u00e8re premi\u00e8re pour les r\u00e9sines de polyester insatur\u00e9, les r\u00e9sines alkydes et l'iodamine \u00e0 longue dur\u00e9e de vie. C'est \u00e9galement un monom\u00e8re copolym\u00e8re pour les r\u00e9sines de polyester insatur\u00e9, les r\u00e9sines alkydes et les copolym\u00e8res d'anhydride mal\u00e9ique et d'anhydride polymal\u00e9ique. C'est \u00e9galement une mati\u00e8re premi\u00e8re chimique organique pour la production d'additifs d'encre, d'aides \u00e0 la fabrication du papier, de plastifiants, d'acide tartrique, d'acide fumarique, de t\u00e9trahydrofurane, etc.<\/p>\n

 <\/p>\n

4. Emballage et stockage<\/b><\/strong><\/h3>\n

L'anhydride mal\u00e9ique est g\u00e9n\u00e9ralement conditionn\u00e9 en sacs de polypropyl\u00e8ne de 25 kg ou en sacs de paillettes de 500 kg. Pour le stockage, il doit \u00eatre conserv\u00e9 dans un endroit frais, sec et bien ventil\u00e9, \u00e0 l'abri des sources de chaleur et de la lumi\u00e8re directe du soleil. La temp\u00e9rature de stockage ne doit pas d\u00e9passer 25\u00b0C pour garantir la stabilit\u00e9 du produit. Il est essentiel de le stocker de mani\u00e8re \u00e0 \u00e9viter toute p\u00e9n\u00e9tration d'humidit\u00e9 et toute contamination.<\/p>","protected":false},"excerpt":{"rendered":"

CAS: 108-31-6 Alias: Maleic acid anhydride; Toxilic anhydride Molecular formula: C\u2084H\u2082O\u2083 Relative molecular mass: 98.06 1. Product Property Maleic anhydride, abbreviated as EMA, also known as “trans-butenedioic anhydride”, is the anhydride of trans-butenedioic acid. At room temperature, it is a sour-tasting colorless or white solid, with the molecular formula C4H2O3. Its molecular weight is 98.06. 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Toxilic anhydride Molecular formula: C\u2084H\u2082O\u2083 Relative molecular mass: 98.06 1. Product Property Maleic anhydride, abbreviated as EMA, also known as “trans-butenedioic anhydride”, is the anhydride of trans-butenedioic acid. At room temperature, it is a sour-tasting colorless or white solid, with the molecular formula C4H2O3. Its molecular weight is 98.06.\u2026","_links":{"self":[{"href":"https:\/\/jinancuchem.com\/fr\/wp-json\/wp\/v2\/product\/4867","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/jinancuchem.com\/fr\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/jinancuchem.com\/fr\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/jinancuchem.com\/fr\/wp-json\/wp\/v2\/media\/4871"}],"wp:attachment":[{"href":"https:\/\/jinancuchem.com\/fr\/wp-json\/wp\/v2\/media?parent=4867"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/jinancuchem.com\/fr\/wp-json\/wp\/v2\/product_brand?post=4867"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/jinancuchem.com\/fr\/wp-json\/wp\/v2\/product_cat?post=4867"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/jinancuchem.com\/fr\/wp-json\/wp\/v2\/product_tag?post=4867"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}