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| Aluminium ammonium sulfate dodecahydrate Basic information |
| Product Name: | Aluminium ammonium sulfate dodecahydrate | | Synonyms: | ALUMINUM AMMONIUM SULFATE, DODECAHYDRATE, REAGENT (ACS)ALUMINUM AMMONIUM SULFATE, DODECAHYDRATE, REAGENT (ACS)ALUMINUM AMMONIUM SULFATE, DODECAHYDRATE, REAGENT (ACS);ALUMINUM AMM SULFATE 12HYD XTL;Sulfuricacid,aluminium(3+)ammoniumsalt(2:1:1);Sulfuricacidaluminumammoniumsalt(2:1:1),dodecahydrate;ALUMINUM AMMONIUM SULFATE DODECAHYDRATE, REAGENTPLUS TM, >= 99%;ALUMINUM AMMONIUM SULFATE DODECAHYDRATE, 99.999%;ALUMINUM-NICKEL CATALYST RANEY-TYPE &;ALUMINUM AMMONIUM SULFATE DODECAHYDRATE ACS REAGENT | | CAS: | 7784-26-1 | | MF: | AlH28NO20S2 | | MW: | 453.33 | | EINECS: | 616-522-2 | | Product Categories: | Inorganics;Industrial/Fine Chemicals | | Mol File: | 7784-26-1.mol |
| Aluminium ammonium sulfate dodecahydrate Chemical Properties |
| Melting point | 93.5 °C(lit.) | | Boiling point | 200 °C | | density | 1.64 | | storage temp. | Store at +5°C to +30°C. | | solubility | H2O: 0.1 M at 20 °C, clear, colorless | | form | Solid | | Specific Gravity | 1.64 | | color | White | | PH | 2.6 (100g/l, H2O, 25℃) | | Odor | Odorless | | PH Range | 2.6 | | Water Solubility | Soluble in water and glycerol. Insoluble in alcohol. | | Merck | 14,327 | | Exposure limits | NIOSH: TWA 2 mg/m3 | | Stability: | Stable. | | CAS DataBase Reference | 7784-26-1(CAS DataBase Reference) | | EPA Substance Registry System | Aluminum ammonium disulfate dodecahydrate (7784-26-1) |
| Aluminium ammonium sulfate dodecahydrate Usage And Synthesis |
| Chemical Properties | white crystals or powder | | Uses | Ammonium aluminum sulfate dodecahydrate may be used in the preparation of alum (Al(OH)3) gel and monodispersed yttrium aluminum garnet (YAG) powder. | | General Description | Ammonium aluminum sulfate dodecahydrate, commonly called as ammonium alum, is widely used in the water purification, cosmetic formulation, fertilizers and food preservation. Its thermal decomposition has been studied. It has high latent heat of 251kJkg-1 with a potential use in the heating system. Its utility as a flame-retardant for cotton fabric has been studied. | | Purification Methods | Crystallise it from hot H2O and cool in ice. When the melt is heated, it loses NH3 and H2SO4, and gives pure alumina at red heat. Solubility (%) in H2O is 3.9 (0o), 15.0 (20o) and 135 (100o). |
| Aluminium ammonium sulfate dodecahydrate Preparation Products And Raw materials |
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