One of the mysteries of the English language finally explained.
A pale green iron salt used in inks, tanning, water purification, and treatment of anemia.
Alternative name: iron(II) sulfate; chemical formula (crystals): FeSO₄7H₂O
- ‘Other mined materials include iron from ferrous sulphate, copper, and molybdenum.’
- ‘After about four years, they produced ‘liquor’ - a dilute solution of hydrated ferrous sulphate and sulphuric acid, which flowed via a planked channel to a cistern.’
- ‘Investigations showed iron deficiency anaemia (haemoglobin 87 g/l, mean cell volume 69 fl), and she was treated with ferrous sulphate.’
- ‘The placebo contained ferrous sulphate 120 mg and calcium phosphate 240 mg.’
- ‘The researchers say that as few as 10 ferrous sulphate tablets, totalling 600 mg of elemental iron, can kill a small child.’
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