ferrous sulfate

American  

noun

Chemistry, Pharmacology.

1. a bluish-green, crystalline, saline-tasting, water-soluble heptahydrated solid, FeSO 4 ⋅7H 2 O, used chiefly in the manufacture of other iron salts, in water purification, fertilizer, inks, pigments, tanning, photography, and in medicine in the treatment of anemia.

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ferrous sulfate Scientific  

1. A bluish-green crystalline compound that is used in sewage and water treatment, and as a pigment and fertilizer. It is also used in medicine to treat iron deficiency. Also called green vitriol. Chemical formula: FeSO ₄ ·7H ₂ O.

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Etymology

Origin of ferrous sulfate

First recorded in 1860–65

Example Sentences

The newly identified ferric hydroxysulfate has a crystal structure similar to szomolnokite, a monohydrated ferrous sulfate.

From Science Daily • Mar. 10, 2026

Existing evidence suggests supplements are a more effective way to replenish iron stores than dietary changes alone and ferrous sulfate is the most effective iron supplement for young children.

From Salon • Sep. 13, 2023

They said he provided or helped gain access to prescription-dose vitamin D; calcitonin; ferrous sulfate; Advair; testosterone; and various thyroid medications.

From New York Times • May 19, 2017

I am old enough to remember when we used to develop our plates in ferrous sulfate solution and you never saw nicer negatives than we got with it.

From Creative Chemistry Descriptive of Recent Achievements in the Chemical Industries by Slosson, Edwin E.

By the addition of ferrous sulfate, which undoubtedly functions as an oxygen carrier, the reaction is extended over a longer period of time.

From Organic Syntheses by Conant, James Bryant