{"id":5260,"date":"2025-07-25T09:20:42","date_gmt":"2025-07-25T09:20:42","guid":{"rendered":"https:\/\/jinancuchem.com\/?post_type=product&p=5260"},"modified":"2025-07-25T09:20:42","modified_gmt":"2025-07-25T09:20:42","slug":"silicon-dioxide","status":"publish","type":"product","link":"https:\/\/jinancuchem.com\/fr\/produit\/silicon-dioxide\/","title":{"rendered":"Dioxyde de silicium"},"content":{"rendered":"

Le dioxyde de silicium est un compos\u00e9 inorganique dont la formule chimique est SiO2. Dans le dioxyde de silicium cristallin, les atomes de silicium et les atomes d'oxyg\u00e8ne sont dispos\u00e9s de mani\u00e8re ordonn\u00e9e \u00e0 longue distance, tandis que dans le dioxyde de silicium amorphe, la disposition est soit ordonn\u00e9e \u00e0 courte distance, soit d\u00e9sordonn\u00e9e \u00e0 longue distance.<\/p>\n

\u3010CAS\u301114808-60-7 Formule mol\u00e9culaire:SiO\u2082 Masse mol\u00e9culaire relative:60.084<\/p>\n

Formule structurelle :\"\"<\/p>\n

 <\/p>\n

\u4e00\uff0ePropri\u00e9t\u00e9 du produit<\/h4>\n

La silice de qualit\u00e9 alimentaire est une fine poudre ou particule blanche d'une puret\u00e9 g\u00e9n\u00e9ralement sup\u00e9rieure \u00e0 99%. Elle poss\u00e8de une structure amorphe (non cristalline), ce qui garantit sa s\u00e9curit\u00e9. La silice est insoluble dans l'eau et les solvants organiques et a un point de fusion \u00e9lev\u00e9 (environ 1600\u00b0C), ce qui la rend adapt\u00e9e au traitement des aliments \u00e0 haute temp\u00e9rature. Selon le type (m\u00e9thode en phase gazeuse, m\u00e9thode par pr\u00e9cipitation ou m\u00e9thode par g\u00e9lification), sa surface sp\u00e9cifique varie de 50 \u00e0 400 m\u00b2\/g, et le pH d'une suspension de 5% est compris entre 3,5 et 7,5. En raison de sa capacit\u00e9 d'adsorption \u00e9lev\u00e9e et de sa faible densit\u00e9 (0,1 - 0,3 g\/cm\u00b3), il est souvent utilis\u00e9 comme agent anti-agglom\u00e9rant, support ou stabilisateur.<\/p>\n

 <\/p>\n

\u4e8c\uff0eIndicateur de qualit\u00e9 :<\/h4>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Param\u00e8tres<\/b><\/strong><\/td>\nGB 25576-2010 Exigences<\/b><\/strong><\/td>\n<\/tr>\n
Apparence<\/b><\/strong><\/td>\nPoudre blanche, amorphe<\/td>\n<\/tr>\n
Puret\u00e9 (teneur en SiO\u2082)<\/b><\/strong><\/td>\n\u226599.0%<\/td>\n<\/tr>\n
Perte au s\u00e9chage (105\u00b0C)<\/b><\/strong><\/td>\n\u22645.0%<\/td>\n<\/tr>\n
Perte \u00e0 l'allumage (1000\u00b0C)<\/b><\/strong><\/td>\n\u22648.5%<\/td>\n<\/tr>\n
Solubles dans l'eau<\/b><\/strong><\/td>\n\u22645.0%<\/td>\n<\/tr>\n
pH (suspension 5%)<\/b><\/strong><\/td>\n3.5-7.5<\/td>\n<\/tr>\n
Arsenic (As)<\/b><\/strong><\/td>\n\u22643 mg\/kg<\/td>\n<\/tr>\n
Plomb (Pb)<\/b><\/strong><\/td>\n\u22643 mg\/kg<\/td>\n<\/tr>\n
M\u00e9taux lourds (en tant que Pb)<\/b><\/strong><\/td>\n\u226410 mg\/kg<\/td>\n<\/tr>\n
Mercure (Hg)<\/b><\/strong><\/td>\n\u22641 mg\/kg<\/td>\n<\/tr>\n
Cadmium (Cd)<\/b><\/strong><\/td>\n\u22641 mg\/kg<\/td>\n<\/tr>\n
Fluorure (F)<\/b><\/strong><\/td>\n\u226410 mg\/kg<\/td>\n<\/tr>\n
Maillage (facultatif)<\/b><\/strong><\/td>\nSur mesure (par exemple, 5-50 \u03bcm)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

 <\/p>\n

\u4e09\uff0eApplication du champ d'application et utilisation<\/h4>\n

LH-101 a une valeur d'absorption d'huile \u00e9lev\u00e9e, une bonne stabilit\u00e9 \u00e0 sec, une faible quantit\u00e9 d'ajout, et convient \u00e0 l'utilisation dans les assaisonnements compos\u00e9s en poudre \u00e0 haute teneur en huile.<\/p>\n

Le LH-102 peut \u00eatre utilis\u00e9 dans des produits tels que les assaisonnements pour le poulet, le caf\u00e9 et les poudres aromatisantes qui contiennent des huiles et sont compos\u00e9es de divers ingr\u00e9dients.<\/p>\n

Le LH-104 convient aux boissons solides, aux th\u00e9s au lait perl\u00e9, aux \u00e9mulsions de graisses v\u00e9g\u00e9tales, etc. et poss\u00e8de de bonnes propri\u00e9t\u00e9s de dispersion.<\/p>\n

L'agent anti-d\u00e9cantation LH-105 de type liquide convient aux ar\u00f4mes sal\u00e9s \u00e0 faible vitesse d'agitation. Il est facile \u00e0 disperser, provoque peu de poussi\u00e8re et ne pr\u00e9sente pas de taches blanches.<\/p>\n

Le LH-106 a un bon go\u00fbt et convient aux boissons sant\u00e9 \u00e0 base de poudre.<\/p>\n

Le LH-267 convient aux assaisonnements compos\u00e9s huileux, avec une forte absorption de l'huile et une bonne fluidit\u00e9 (comme alternative au Lin'an Dongtai DT 267 d'Evonik Taiwan) ;<\/p>\n

LH-280 est une silice nanom\u00e9trique de haute puret\u00e9 et de bonne fluidit\u00e9. La teneur en silice est \u2265 99,3%, ce qui permet de l'ajouter aux poudres cosm\u00e9tiques et pharmaceutiques.<\/p>\n

Le LH-280S est utilis\u00e9 comme antimousse pour les assaisonnements liquides \u00e0 base de sauce ou les boissons.<\/p>\n

Le LH-380 (antioxydant incolore) est utilis\u00e9 comme support. Il a une grande capacit\u00e9 d'absorption de l'huile avec un faible dosage, une bonne stabilit\u00e9 et aucun changement de couleur (rempla\u00e7ant le Rodia T38 fran\u00e7ais) ;<\/p>\n

 <\/p>\n

\u56db\uff0eEmballage et stockage<\/h4>\n

Emball\u00e9 dans des sacs en plastique, 10kg par sac<\/p>\n

La silice de qualit\u00e9 alimentaire doit \u00eatre stock\u00e9e dans un environnement frais et sec, avec une temp\u00e9rature contr\u00f4l\u00e9e entre 15 et 25\u00b0C et une humidit\u00e9 relative inf\u00e9rieure \u00e0 50%. Cela permet d'\u00e9viter l'absorption d'humidit\u00e9 et la formation de grumeaux. L'emballage doit se faire dans des sacs ou des conteneurs scell\u00e9s en poly\u00e9thyl\u00e8ne haute densit\u00e9 (PEHD) afin de garantir l'\u00e9tanch\u00e9it\u00e9. La zone de stockage doit \u00eatre bien ventil\u00e9e et \u00e9viter tout contact avec des alcalis forts (tels que l'hydroxyde de sodium) ou des fluorures. Dans des conditions de stockage correctes, la dur\u00e9e de conservation de la silice est presque illimit\u00e9e, mais l'int\u00e9grit\u00e9 de l'emballage doit \u00eatre v\u00e9rifi\u00e9e r\u00e9guli\u00e8rement.<\/p>\n

 <\/p>\n

\u4e94.Protection de la s\u00e9curit\u00e9 :<\/h4>\n

Le dioxyde de silicium pr\u00e9sente une toxicit\u00e9 relativement faible, mais n\u00e9cessite n\u00e9anmoins une protection ad\u00e9quate. L'inhalation de sa poussi\u00e8re peut provoquer une l\u00e9g\u00e8re irritation des voies respiratoires. Il est donc recommand\u00e9 de porter un masque N95 lors de la manipulation de la poudre et de travailler dans un environnement bien ventil\u00e9. Le contact avec les yeux peut provoquer une irritation m\u00e9canique et un rin\u00e7age imm\u00e9diat \u00e0 l'eau claire pendant 15 minutes est n\u00e9cessaire. Le contact avec la peau ne provoque g\u00e9n\u00e9ralement pas d'irritation, mais une exposition prolong\u00e9e peut entra\u00eener un dess\u00e8chement de la peau. Il est recommand\u00e9 de porter des gants en nitrile et des blouses de laboratoire. L'ingestion accidentelle d'une petite quantit\u00e9 de dioxyde de silicium est g\u00e9n\u00e9ralement inoffensive, mais il est n\u00e9cessaire de se rincer la bouche et de boire de l'eau pour la diluer.<\/p>","protected":false},"excerpt":{"rendered":"

Silicon dioxide is an inorganic compound with the chemical formula SiO2. In crystalline silicon dioxide, silicon atoms and oxygen atoms are arranged in a long-range ordered manner, while in amorphous silicon dioxide, the arrangement is either short-range ordered or long-range disordered. \u3010CAS\u301114808-60-7\u00a0\u00a0\u00a0\u00a0\u00a0Molecular formula:SiO\u2082\u00a0\u00a0\u00a0\u00a0Relative molecular mass:60.084 Structural formula:   \u4e00\uff0eProduct Property Food-grade silica is a fine […]<\/p>\n","protected":false},"featured_media":5269,"template":"","meta":{"_seopress_robots_primary_cat":"","_seopress_titles_title":"","_seopress_titles_desc":"","_seopress_robots_index":"","_uag_custom_page_level_css":"","site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"default","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center 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dioxide is an inorganic compound with the chemical formula SiO2. In crystalline silicon dioxide, silicon atoms and oxygen atoms are arranged in a long-range ordered manner, while in amorphous silicon dioxide, the arrangement is either short-range ordered or long-range disordered. \u3010CAS\u301114808-60-7\u00a0\u00a0\u00a0\u00a0\u00a0Molecular formula:SiO\u2082\u00a0\u00a0\u00a0\u00a0Relative molecular mass:60.084 Structural formula:   \u4e00\uff0eProduct Property Food-grade silica is a fine\u2026","_links":{"self":[{"href":"https:\/\/jinancuchem.com\/fr\/wp-json\/wp\/v2\/product\/5260","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\/5269"}],"wp:attachment":[{"href":"https:\/\/jinancuchem.com\/fr\/wp-json\/wp\/v2\/media?parent=5260"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/jinancuchem.com\/fr\/wp-json\/wp\/v2\/product_brand?post=5260"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/jinancuchem.com\/fr\/wp-json\/wp\/v2\/product_cat?post=5260"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/jinancuchem.com\/fr\/wp-json\/wp\/v2\/product_tag?post=5260"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}