{"id":20799,"date":"2025-09-08T15:45:28","date_gmt":"2025-09-08T13:45:28","guid":{"rendered":"https:\/\/delta.screenup.com\/produit\/citric-acid-anhydrous-reagent-a-c-s\/"},"modified":"2025-09-10T16:23:11","modified_gmt":"2025-09-10T14:23:11","slug":"citric-acid-anhydrous-reagent-a-c-s","status":"publish","type":"product","link":"https:\/\/delta.screenup.com\/en\/produit\/citric-acid-anhydrous-reagent-a-c-s\/","title":{"rendered":"Citric Acid, Anhydrous, Reagent, A.C.S."},"content":{"rendered":"

L\u2019acide citrique anhydre<\/strong> (C\u2086H\u2088O\u2087, poids mol\u00e9culaire 192,13, CAS #77-92-9) est un r\u00e9actif chimique de haute puret\u00e9 conforme aux sp\u00e9cifications A.C.S.<\/strong> avec un taux de puret\u00e9 minimum de 99,5 %<\/strong>. Ce produit pr\u00e9sente de tr\u00e8s faibles niveaux d\u2019impuret\u00e9s : mati\u00e8res insolubles \u22640,005 %, r\u00e9sidu apr\u00e8s ignition \u22640,02 %, chlorures 0,001 %, oxalates \u22640,05 %, phosphates 0,001 %, sulfates 0,002 %, fer 3 ppm et m\u00e9taux lourds (Pb) \u22642 ppm.<\/p>\n

Cette haute qualit\u00e9 garantit des performances fiables pour la pr\u00e9paration de tampons, solutions et autres applications chimiques ou biologiques sensibles<\/strong>, o\u00f9 la pr\u00e9cision et la puret\u00e9 sont essentielles. L\u2019acide citrique anhydre A.C.S. est stable, facile \u00e0 manipuler et adapt\u00e9 \u00e0 un usage en laboratoire professionnel<\/strong>.<\/p>\n

formule:<\/strong> C6H8O7\u00a0<\/span><\/p>\n

FW<\/strong> 192.13<\/p>\n

CAS #<\/strong>77-92-9 A.C.S.<\/p>\n

Sp\u00e9cifications:<\/strong><\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n
Assay<\/span><\/td>\nMin. 99.5%<\/td>\n<\/tr>\n
Insoluble Matter<\/td>\n0.005%<\/td>\n<\/tr>\n
Residue after Ignition<\/td>\n0.02%<\/td>\n<\/tr>\n
Chloride<\/td>\n0.001%<\/td>\n<\/tr>\n
Oxalate (C2O4) (about 0.05%)<\/td>\nTo Pass Test<\/td>\n<\/tr>\n
Phosphate<\/td>\n0.001%<\/td>\n<\/tr>\n
Sulfate<\/td>\n0.002%<\/td>\n<\/tr>\n
Heavy Metal (as Pb)<\/td>\n2ppm<\/td>\n<\/tr>\n
Subs. carbonized by hot H2SO4<\/td>\nTo Pass Test<\/td>\n<\/tr>\n
Iron<\/td>\n3ppm<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Storage : RT<\/p>\n

MSDS_12480<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

Acide citrique anhydre, grade r\u00e9actif A.C.S., \u226599,5 % de puret\u00e9.<\/strong> Id\u00e9al pour la pr\u00e9paration de tampons et applications chimiques de haute pr\u00e9cision. Tr\u00e8s faible teneur en impuret\u00e9s et m\u00e9taux lourds.<\/p>\n

Unit : 500g \u00a0<\/strong><\/p>\n

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