Aluminium sulfate octadecahydrate
Synonym(s):Aluminium sulfate-18-hydrate;Aluminum sulfate hydrate;Aluminum Sulfate, Octadecahydrate;Cake alum,Patent alum, Alum
- CAS NO.：7784-31-8
- Empirical Formula: Al2H36O30S3
- Molecular Weight: 666.43
- MDL number: MFCD00149136
- EINECS: 616-524-3
- SAFETY DATA SHEET (SDS)
- Update Date: 2024-08-21 22:41:43
What is Aluminium sulfate octadecahydrate?
Chemical properties
white crystalline powder and chunks
Physical properties
White crystal; sweet taste; density 1.62 g/cm3: decomposes at 86.5°C; soluble in water.
The Uses of Aluminium sulfate octadecahydrate
Aluminium sulfate octadecahydrate is a preservative, the inclusive term for several inum-type compounds such as inum sulfate and inum potassium sulfate. It is used with edta to prevent discoloration of potatoes and to maintain the firmness of shrimp packs. It is also used in pickles and pickle relish.
What are the applications of Application
Aluminum sulfate octadecahydrate is a rare natural occurring mineral used in many analytical and research areas
Definition
ChEBI: A hydrate resulting from the the formal combination of anhydrous aluminium sulfate with approximately 18 mol eq. of water. The commercial product usually contains 5-10% less water than theory. It is one of the commonest hydrates of aluminium sulfate.
Properties of Aluminium sulfate octadecahydrate
| Melting point: | 86 °C |
| Density | 1,69 g/cm3 |
| storage temp. | Sealed in dry,Room Temperature |
| solubility | 364g/l |
| form | Powder/Solid |
| color | White |
| Specific Gravity | 1.69 |
| PH Range | 3 - 4 |
| PH | 2.5-4.0 (20g/l, H2O, 20℃) |
| Water Solubility | Soluble |
| Sensitive | moisture sensitive |
| CAS DataBase Reference | 7784-31-8(CAS DataBase Reference) |
| EPA Substance Registry System | Sulfuric acid, aluminum salt (3:2), octadecahydrate (7784-31-8) |
Safety information for Aluminium sulfate octadecahydrate
| Signal word | Danger |
| Pictogram(s) |
 Corrosion Corrosives GHS05 |
| GHS Hazard Statements |
H290:Corrosive to Metals H318:Serious eye damage/eye irritation |
| Precautionary Statement Codes |
P280:Wear protective gloves/protective clothing/eye protection/face protection. |
Computed Descriptors for Aluminium sulfate octadecahydrate
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