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ÀWỌN OHUN WÍWỌ̀
Copper Sulfate from Copper Oxide and Dilute Sulfuric Acid
Copper sulfate is made industrially by dissolving copper oxides in dilute sulfuric acid (or copper metal in hot concentrated acid). CuO + H₂SO₄ → CuSO₄ + H₂O. From the solution it crystallises in its blue hydrous form, the pentahydrate, which is about 25% copper, 38% sulfate and 36% water by mass. Commercial copper sulfate is about 98% pure. It is used as a fungicide, for etching zinc, aluminium and copper printing plates, and to make ferrous sulfate.
Àárín
1–2 days
Ìlànà
1
1
Dissolve the oxide
Dissolve the oxide
Stir copper(II) oxide into dilute sulfuric acid until no more dissolves. CuO + H₂SO₄ → CuSO₄ + H₂O; the solution turns blue.
Àwọn ohun èlò fún ìgbésẹ̀ yìí:
Oxide Bàbà1 as required
Sulfuric acid tí a là1 as requiredÀwọn irinṣẹ́ tí a nílò:
Agba ìdásí2
2
Filter
Filter
Filter off any undissolved oxide.
Àwọn irinṣẹ́ tí a nílò:
Aṣọ wàrà-dídì3
3
Crystallise
Crystallise
Concentrate the blue solution and let the copper sulfate crystallise in its blue hydrous form.
Àwọn irinṣẹ́ tí a nílò:
Ẹ̀rọ ìsọ-omi-di-èéfínÀwọn ohun-èlò
2- 1 as requiredÀyè
- 1 as requiredÀyè
Àwọn irinṣẹ́ tó nílò
3- Àyè
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