Timeline for Differentiating Al2O3 from SiO2 using chemical methods
Current License: CC BY-SA 3.0
5 events
| when toggle format | what | by | license | comment | |
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| Jun 14, 2017 at 20:04 | comment | added | aventurin | The question is not about aluminium metal. My comment was about alpha aluminium oxide which is known to be insoluble in sulphuric and hydrochloric acid. Btw, I'm not sure if granules is the same as powder. | |
| Jun 14, 2017 at 18:50 | comment | added | Nilay Ghosh | @aventurin aluminum metal does not react with any of the acids due to passivation layer of Al2O3 but since Al2O3 is present here in powdered form, surface area increases and reaction of acids is possible. | |
| Jun 14, 2017 at 18:47 | history | edited | Nilay Ghosh | CC BY-SA 3.0 |
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| Jun 14, 2017 at 18:28 | comment | added | aventurin | $\ce{\alpha Al2O3}$ does neither react with sulphuric nor with hydrochloric acid. | |
| Jun 13, 2017 at 19:36 | history | answered | Nilay Ghosh | CC BY-SA 3.0 |