CAS Number7784-24-9
SynonymsPotassium alum dodecahydrate; ALUM POTASSIUM; Alum, potassium; EINECS 233-141-3; POTASSIUM ALUMINUM SULFATE DODECAHYDRATE; aluminum potassium sulfate 12-hydrate; Potassium aluminium sulphate dodecahydrate; Aluminum Potassium s; POTASSIUM AMMONIUM SULFATE; Sulfuric acid, aluminum potassium salt (2:1:1), dodecahydrate; Aluminium potassium sulfate hydrate (1:1:2:12); Potash alum dodecahydrate; Potash alum; Aluminium potassium sulfate dodecahydrate; POTASSIUM ALUMINUM DISULFATE DODECAHYDRATE; ALUM; POTASSIUMALUM,GRANULAR,USP; Aluminum potassium sulfate (1:1:2) dodecahydrate; ALUM SOLUTION; aluminium potassium sulphate 12-hydrate; MFCD00149143; Kalinite; Potassium aluminum sulfate dodecahydrate (KAl(SO4)2.12H2O); Potassium alum; Aluminum potassium disulfate dodecahydrate; Alum, potassium, dodec
Molecular FormulaAlK(SO4)2 · 12H2O
Molecular Weight474.39
Purity99%
Density1.757 g/mL at 25 °C(lit.)
Boiling Point330ºC at 760 mmHg
Melting Point92 °C(lit.)
AppearanceWhite to colorless crystals
Symbol
Signal WordWarning
| Chemical & Physical Properties | |
|---|---|
| CAS Number | 7784-24-9 |
| Catalog No. | 2A-9034095 |
| Chinese Name | 明矾 |
| Synonyms | Potassium alum dodecahydrate; ALUM POTASSIUM; Alum, potassium; EINECS 233-141-3; POTASSIUM ALUMINUM SULFATE DODECAHYDRATE; aluminum potassium sulfate 12-hydrate; Potassium aluminium sulphate dodecahydrate; Aluminum Potassium s; POTASSIUM AMMONIUM SULFATE; Sulfuric acid, aluminum potassium salt (2:1:1), dodecahydrate; Aluminium potassium sulfate hydrate (1:1:2:12); Potash alum dodecahydrate; Potash alum; Aluminium potassium sulfate dodecahydrate; POTASSIUM ALUMINUM DISULFATE DODECAHYDRATE; ALUM; POTASSIUMALUM,GRANULAR,USP; Aluminum potassium sulfate (1:1:2) dodecahydrate; ALUM SOLUTION; aluminium potassium sulphate 12-hydrate; MFCD00149143; Kalinite; Potassium aluminum sulfate dodecahydrate (KAl(SO4)2.12H2O); Potassium alum; Aluminum potassium disulfate dodecahydrate; Alum, potassium, dodec |
| Molecular Formula | AlK(SO4)2 · 12H2O |
| Molecular Weight | 474.39 |
| Purity | 99 |
| Density | 1.757 g/mL at 25 °C(lit.) |
| Boiling Point | 330ºC at 760 mmHg |
| Melting Point | 92 °C(lit.) |
| Appearance | White to colorless crystals |
| Water Solubility | 140 G/L (20 ºC) |
| Storage Condition | 1. It should be stored in a ventilated, dry and cl |
| PubChem ID | 24891189 |
| SMILES | O.O.O.O.O.O.O.O.O.O.O.O.O=S(=O)([O-])[O-].O=S(=O)([O-])[O-].[Al+3].[K+] |
| InChI | InChI=1S/Al.K.2H2O4S.12H2O/c;;2*1-5(2,3)4;;;;;;;;;;;;/h;;2*(H2,1,2,3,4);12*1H2/q+3;+1;;;;;;;;;;;;;;/p-4 |
| InChI Key | GNHOJBNSNUXZQA-UHFFFAOYSA-J |
| Hazard Symbols | transportation |
| Transport Info | Shipping Name: UN |
| MSDS Transport Info | Module 14. Shipping information 14.1 UN dangerous goods number European Land Transport Dangerous Regulations: -International Maritime Dangerous Regulations: -International Air Transport Dangerous Regulations: - 14.2 United Nations shipping name European Land Transport Dangerous Regulations: Non-dangerous goods IMDG Code: Non-dangerous goods International air transport dangerous goods regulations: non-dangerous goods 14.3 Transport hazard categories European Land Transport Dangerous Regulations: -International Maritime Dangerous Regulations: -International Air Transport Dangerous Regulations: - 14.4 Package group European Land Transport Dangerous Regulations: -International Maritime Dangerous Regulations: -International Air Transport Dangerous Regulations: - 14.5 Environmental hazards European Land Transport Danger Regulations: No International Maritime Danger Regulations International Air Transport Danger Regulations: No Marine pollutants (yes/no): No 14.6 Special reminder to users No data available |
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| Pentalfluoroiodide | 7783-66-6 | 2A-9034084 |
| Ammonium ferric sulfate dodecahydrate | 7783-83-7 | 2A-9034086 |
| Ferrous ammonium sulfate hexahydrate | 7783-85-9 | 2A-9034087 |
| Silver nitrite | 7783-99-5 | 2A-9034090 |
| Aluminium iodide | 7784-23-8 | 2A-9034094 |
| Aluminum ammonium sulfate | 7784-25-0 | 2A-9034096 |
| Aluminium phosphate | 7784-30-7 | 2A-9034099 |
| Aluminium sulfate octadecahydrate | 7784-31-8 | 2A-9034100 |
| Geranyl tiglate | 7785-33-3 | 2A-9034102 |
| Manganese sulphate | 7785-87-7 | 2A-9034105 |
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