How to Determine the Temperature at Which Carbon Can Reduce Iron Oxide to Iron
- 1). Light the Bunsen burner.
- 2). Mix iron (iii) oxide powder with the carbon powder in a test tube.
- 3). Run a magnet under the glass of the test tube to see if there is any magnetic reaction or movement in the powder mixture.
- 4). Hold the test tube in a pair of tongs and heat its bottom in the hottest part of the Bunsen burner flame. Do so for five minutes.
- 5). Remove the test tube from the flame. Use the thermometer to take the temperature of the mixture in the test tube. Record this data.
- 6). Set the test tube in the test tube rack on the heat mat, and allow it to cool to room temperature.
- 7). Run a magnet under the glass of the test tube to see if there is any magnetic reaction or movement in the powder mixture. If there are no signs of magnetism, repeat steps 4 through 7, heating the mixture a minute longer each time, until you do.
- 8). Record the temperature at which magnetic properties are first noticed.
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