The difference between graphite powder and iron powder

   Graphite powder belongs to the hexagonal crystal system and has a layered structure, which is widely used in industry. Graphite powder and iron powder are very similar in appearance, and it is sometimes difficult for us to identify them. The following editor will introduce 2 ways to distinguish them:

1. Chemistry

1. Mixed heating

   Adding and mixing copper oxide to graphite powder, and then heating it, will generate CO2 that clears lime water and becomes turbid, but iron powder will not have this situation.

2. When dilute sulfuric acid or dilute hydrochloric acid is added to the iron powder, bubbles will appear.

2. Physics

1. Heating

   Graphite powder is ignited in the air, but iron powder will turn black.

2. Magnets

   Iron powder can be attracted by magnets, but graphite powder cannot be attracted by magnets.

3. Touch

   Graphite powder has a greasy feel, while iron powder does not.