| Author | Message | ||
     Anonymous |
hey i was trying to grow asprin crystals onto iron filings lined up on a magnetic field, but the crystals didnt grow right, they made small crystals on the surface of the achohol (dilute) that reflected a rainbow on the achohol like motor oil does on water and the achohol turned reddish brown and the iron got bubbles on it and i was wondering if it was oxodizing or some chemical reaction was going on | ||
| Simon Quellen Field (Sfield) |
You have iron particles in an acid solution. I would expect several reactions to take place, oxidation among them. You might try using iron that is already oxidized, such as the magnetite you get from running a magnet through beach sand. However, the acid may reduce the iron oxide back to iron, and allow other reactions to take place anyway. It seems worth a try though. If you fill the container to the top, and then cover it, then less oxygen will be available to the reaction. If the solution is supersaturated, then the crystals will form as it cools, and you will not need evaporation to concentrate the solution. Controlling the cooling rate will help control the size of the crystals, and the rate at which they form. |
