- AMMONIUM ALUM
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- $120.00 / 1ton
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2024-10-24
- CAS:7784-26-1
- Min. Order: 5ton
- Purity: 99%
- Supply Ability: 3000tons
- AMMONIUM ALUM
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- $1.00 / 1KG
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2019-07-12
- CAS:7784-26-1
- Min. Order: 1KG
- Purity: 99%
- Supply Ability: 25kg
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| | Aluminium ammonium sulfate dodecahydrate Basic information |
| Product Name: | Aluminium ammonium sulfate dodecahydrate | | Synonyms: | 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;Ammonium aluminium sulfate-12-hydrate;ALUMINUM AMMONIUM SULFATE DODECAHYDRATE, 98+%, A.C.S. 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. | | LogP | -1.031 (est) | | 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 | Colorless transparent cube or white powder. No smell, astringent taste. Slightly soluble in water (15g/100ml at 20℃), easily soluble in hot water. The water solution is acidic. Soluble in dilute acid and glycerol, insoluble in alcohol. Loses 10 molecules of water when heated to 120℃, becomes anhydrous alum when heated to 200℃, and decomposes at 280℃. | | Uses | Ammonium aluminum sulfate dodecahydrate may be used in the preparation of alum (Al(OH)3) gel and monodispersed yttrium aluminum garnet (YAG) powder. | | Definition | ChEBI: Ammonium alum is an inorganic sulfate salt. | | Preparation | Aluminium ammonium sulfate dodecahydrate is produced through the reaction of sulphuric acid with aluminium hydroxide. Ammonium sulphate is added to the mixture and allowed to react. The mixture is then cooled and crystallized, followed by centrifugal separation. The resulting product is dried to obtain the final aluminium ammonium sulfate. | | 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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