ferrous

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ferrous

(fĕr`əs), ironiron,
metallic chemical element; symbol Fe [Lat. ferrum]; at. no. 26; at. wt. 55.845; m.p. about 1,535°C;; b.p. about 2,750°C;; sp. gr. 7.87 at 20°C;; valence +2, +3, +4, or +6. Iron is biologically significant.
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 in the +2 valencevalence,
combining capacity of an atom expressed as the number of single bonds the atom can form or the number of electrons an element gives up or accepts when reacting to form a compound.
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 state.
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ferrous

[′fer·əs]
(chemistry)
The term or prefix used to denote compounds of iron in which iron is in the divalent (2+) state.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

ferrous

of or containing iron in the divalent state; designating an iron(II) compound
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005

ferrous

Containing or having to do with iron. The difference between ferrous and ferric is the number of valence electrons they contain (ferrous contains two and ferric contains three), which combine with other atoms to form molecules. See ferromagnetic, ferroelectric and ferric oxide.
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References in periodicals archive ?
For instance, common reactions to ferrous sulfate and ferrous gluconate include vomiting, dyspepsia, nausea, and diarrhea (Short & Domagalski, 2013).
The reference compounds of both ferrous gluconate and ferrous fumarate were commercial products.
When increasing the iron concentration from 1 mg/100 g to 1.5 mg/100 g, the reflection loss slightly decreased in the presence of both ferrous gluconate and ferrous chloride.
The variations in corrosion rate and percentage inhibition efficiency (%IE) with immersion time at different concentrations of ferrous gluconate for 28 days of exposure are shown in Figures 2 and 3.
Iron availability was highest from the commercial ferrous gluconate (brand H), as demonstrated by ferritin results of 228.3 ng/mg cell protein.
After handling with ferrous gluconate the level of copper was significantly decreased (p<0.000), while the level of zinc had insignificant differences.
Caps, Ferra-TD, Ferro-Bob, Ferrospace, Ferro-Time, Mol-Iron, Slow Fe, Yieronia Ferrous gluconate 38 Fergon, Ferralet, Simron Ferrous fumarate and 81 Repliva 21/7 (also contains ferrous asparto 70 ascorbic acid, glycinate succinic acid, folic acid, and vitamin [B.sub.12]) Polysaccharide iron 50-150 Ferrimin, Fe-Tinic 150, (ferric) Hytinic, Niferex, Nudron
Some iron forms, such as ferrous sulfate, ferrous gluconate and ferrous lactate, are water-soluble and highly bioavailable.
EVIDENCE-BASED ANSWER Ferrous salt preparations (ferrous sulfate, ferrous gluconate, and ferrous fumarate) are equally tolerable.
GRAS Ingredients: Calcium citrate, copper gluconate, ferrous fumarate, ferrous gluconate, ferrous lactate, magnesium phosphate dibasic, manganese citrate, manganese sulfate, manganese gluconate, zinc glucoante