ammonium sulphate formula

When chilled into the ferrorelectric state, the symmetry of the crystal changes to space group Pna21. - pp. It contains 21% nitrogen and 24% sulfur. - Wiley-Interscience, 2005. - �. - pp. Tout contact intime avec des oxydants puissants peut créer de fortes explosions. Lewis, R.J. Sr. (ed) Irving Sax's Dangerous Properties of Industrial Materials. - �. The ammonia produced has a pungent smell and is toxic. Answer. 242, Milne G.W.A. Il s'agit d'un sel d'ammonium NH4+ et d'acide sulfurique H2SO4 qui possède de très nombreuses applications. Chauffé dans des conditions thermiques drastiques, ce corps chimique se dégrade quasi-instantanément et émet des fumées très toxiques de SOx, NOx et d'ammoniac[3]. The filtrate on evaporation yields ammonium chloride. 219-220, ���������� ������������. CopyCopied, CSID:22944, http://www.chemspider.com/Chemical-Structure.22944.html (accessed 03:21, Nov 27, 2020) http://onlinelibrary.wiley.com/doi/10.1111/j.1365-3180.1984.tb00572.x/abstract, Présentation sur l'open Chemistry data base, Deux préparations faciles du sulfate d'ammonium en solution et la décomposition de sa poudre à la chaleur à ne pas imiter dans de si mauvaises conditions, Quelques chiffres fiables sur l'industrie des engrais, liste des principales adventices en France, Liste des espèces susceptibles d'occasionner des dégâts en France, Produit végétal traité avec un produit phytopharmaceutique, Directive cadre pour la protection des sols, Programme de maîtrise des pollutions d'origine agricole, Taxe générale sur les activités polluantes, https://fr.wikipedia.org/w/index.php?title=Sulfate_d%27ammonium&oldid=170828573, licence Creative Commons attribution, partage dans les mêmes conditions, comment citer les auteurs et mentionner la licence, cristaux incolores à l'état pur, blanc à gris, décomposition en tube scellé sans air vers, Dipyramidale Holoédrie orthorhombique classe de symétrie 2/m 2/m 2/m ; groupe d'espace Pnam, transparent à translucide, parfois opaque. With trivalent metal ions, alums such as ferric ammonium sulfate are formed. - 1970. 2H2O). [18], In November 2009, a ban on ammonium sulfate, ammonium nitrate and calcium ammonium nitrate fertilizers was imposed in the former Malakand Division—comprising the Upper Dir, Lower Dir, Swat, Chitral and Malakand districts of the North West Frontier Province (NWFP) of Pakistan, by the NWFP government, following reports that they were used by militants to make explosives. Du sulfate d'ammonium sec et pulvérulent peut être obtenu en pulvérisant de l'acide sulfurique dans une enceinte contenant de l'ammoniac gazeux. 43-45, Seidell A. Solubilities of inorganic and metal organic compounds. Il existe dans la nature, sous le nom minéralogique de mascagnite. : ��������� ������������, 1988. Dans l'industrie du bâtiment, il est aussi pris comme produit ignifugeant et retardant de flamme. Un article de Wikipédia, l'encyclopédie libre. [O-]S(=O)(=O)[O-] 17 18 19. What is the balanced equation for Ammonium sulfate and potassium hydroxide are mixed together? Elle reste méconnue. - �. The most common use is as a soil fertilizer. H��W�r�� ��S�r� i.���ӎ$;�:��Zr/���V��p�8��i{Q K��d��E��D�[,p ����f������ ��ow���ADN��l5��r�߸��jp�y*�I\�u� f����fσ��ە:�_�e��/��K����D >��ѵe��������o�L����5L�~�팖z� 154. g water at 0C; 103.8 g/100 g water at 100C), it is widely used as a fertilizer for alkaline soils. With trivalent metal ions, alums such as ferric ammonium sulfate are formed. Insoluble in alcohol and acetone, CAUTION: May irritate eyes, skin, and respiratory tract, WARNING: Irritates skin and eyes, harmful if swallowed. CopyCopied, BFNBIHQBYMNNAN-UHFFFAOYSA-N Il intervient aussi couramment dans les méthodes d'analyses cristallographiques des acides nucléiques et des protéines. 9, No. Elle avoisine 5 millions de tonnes exprimée en azote. [16], Ammonium sulfate decomposes upon heating above 250 °C, first forming ammonium bisulfate. 2H2O). 489-494, Lewis R.J. Sax's Dangerous Properties of Industrial Materials. Il est soluble dans l'eau. Diammonium sulfate. Airborne particles of evaporated ammonium sulfate comprise approximately 30% of fine particulate pollution worldwide. At room temperature it crystallises in the orthorhombic system, with cell sizes of a = 7.729 Å, b = 10.560 Å, c = 5.951 Å. Asked by Wiki User. ������� ���������� ����������. In January 2010, these substances were also banned in Afghanistan for the same reason. It occurs in crystals with particle size that is variable, colored white to beige (IPNI 2012). When chilled into the ferrorelectric state, the symmetry of the crystal changes to space group Pna21. - pp. Ammonium sulfate forms many double salts (ammonium metal sulfates) when its solution is mixed with equimolar solutions of metal sulfates and the solution is slowly evaporated. [19], InChI=1S/2H3N.H2O4S/c;;1-5(2,3)4/h2*1H3;(H2,1,2,3,4), InChI=1/2H3N.H2O4S/c;;1-5(2,3)4/h2*1H3;(H2,1,2,3,4), Except where otherwise noted, data are given for materials in their, ASTM Standard Specification for Rubber Concentrates D 1076-06, "Protein Precipitation Using Ammonium Sulfate", "Select Committee on GRAS Substances (SCOGS) Opinion: Ammonium sulfate", "Panera Bread › Menu & Nutrition › Nutrition Information Profile", "Official Subway Restaurants U.S. Products Ingredients Guide", "Feeding Ammonium Sulfate to Form Combined Chlorine Residual", Centers for Disease Control and Prevention, "Effects of Ammonium Phosphate and Sulfate on the Pyrolysis and Combustion of Cellulose", "PAKISTAN: 'Anti-terrorist' fertilizer ban hinders farmers", International Fertilizer Development Center, https://en.wikipedia.org/w/index.php?title=Ammonium_sulfate&oldid=989046063, Articles with unsourced statements from October 2015, Pages using collapsible list with both background and text-align in titlestyle, Articles containing unverified chemical infoboxes, Articles with unsourced statements from March 2012, Creative Commons Attribution-ShareAlike License, 235 to 280 °C (455 to 536 °F; 508 to 553 K) (decomposes), This page was last edited on 16 November 2020, at 19:17. Ammonium sulfate | (NH4)2SO4 or H8N2O4S | CID 6097028 - structure, chemical names, physical and chemical properties, classification, patents, literature, biological activities, safety/hazards/toxicity information, supplier lists, and more. On produit également le sulfate d'ammonium à partir du gypse (sulfate de calcium dihydraté CaSO4, 2H2O) finement divisé qu'on ajoute à une solution de carbonate d'ammonium (NH4)2CO3 pour produire du carbonate de calcium CaCO3 qui précipite en laissant le sulfate d'ammonium en solution : Le sulfate d'ammonium existe à l'état naturel dans le minéral rare appelé mascagnite, par exemple dans les dépôts de fumerolles volcaniques. - �.-�. As ammonium sulfate dissociates in biological systems studies with other ammonium and sulfate salts can be used to cover these endpoints: A screening study according to OECD TG 422 with ammonium … La chaleur produite par la réaction évapore toute l'eau de l'acide en laissant le sel anhydre. The formula of ammonium sulphate is (NH4)2SO4, showing that each formula mass contains one sulphur atom. Industrial and Engineering Chemistry Process Design and Development. The most common use is as a soil fertilizer. C'est pourquoi les sulfates d'ammonium sont conservés entre 2 °C et 8 °C. - �. - New York: D. Van Nostrand Company, 1940. - pp. Ce composé de l'azote peut exacerber l'efficacité de certains herbicides [5]. Heating at higher temperatures results in decomposition into ammonia, nitrogen, sulfur dioxide, and water.[17]. As a salt of a strong acid (H2SO4) and weak base (NH3), its solution is acidic; pH of 0.1 M solution is 5.5. 4. L'eau et l'azote peuvent également se reformer à hautes températures. Heating at higher temperatures results in decomposition into ammonia, nitrogen, sulfur dioxide, and water.[17]. - pp. In aqueous solution the reactions are those of NH4+ and SO4−2 ions. %PDF-1.4 %���� Ammonium sulfate. - �.1, ��.1. : ��� ����, 1961. [15], Ammonium sulfate becomes ferroelectric at temperatures below -49.5 °C. Molecular Formula H 8 N 2 O 4 S; Average mass 132.139 Da; Monoisotopic mass 132.020477 Da; ChemSpider ID 22944; More details: Systematic name. 1 0 obj << /Type /Page /Parent 725 0 R /Resources 2 0 R /Contents 3 0 R /MediaBox [ 0 0 612 792 ] /CropBox [ 0 0 612 792 ] /Rotate 0 >> endobj 2 0 obj << /ProcSet [ /PDF /Text ] /Font << /TT2 759 0 R /TT4 764 0 R /TT5 691 0 R /TT7 692 0 R >> /ExtGState << /GS1 765 0 R >> /ColorSpace << /Cs6 760 0 R >> >> endobj 3 0 obj << /Length 2605 /Filter /FlateDecode >> stream Also ammonium phosphate does not dissociate into ammonium ions and phosphate ions as you might expect. [2] Anhydrous double sulfates of ammonium also occur in the Langbeinites family. Gardner's Commercially Important Chemicals. - McGraw-Hill, 2003. Ce produit n'est pas contrôlé selon les critères de classification du SIMDUT. - Vol. Calcium carbonate precipitates as a solid, leaving ammonium sulfate in the solution. CopyCopied, Validated by Experts, Validated by Users, Non-Validated, Removed by Users, Predicted data is generated using the ACD/Labs Percepta Platform - PhysChem Module. - pp. The ammonia produced has a pungent smell and is toxic. Ammonium sulfate (American English and international scientific usage; ammonium sulphate in British English); (NH4)2SO4, is an inorganic salt with a number of commercial uses.

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