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Ferrous Sulphate Heptahydrate (Recycled) - China

IUPAC Name	: Iron (2+) Sulfate Heptahydrate
Cas Number	: 7782-63-0
HS Code	: 2833.29.00
Formula	: FeH₁₄O₁₁S

Basic Info

Appearance Name	: Blue or Green Crystals
Common Names	: Iron(II) sulfate heptahydrate; Presfersul; Melanterite mineral;
Packaging	: 25 kg/drum

Industry

Surplus Chemicals

Water Treatment Chemicals

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Technical Document

Brief Overview

Iron (ll) sulfate exist most commonly as heptahydrate form and it is highly soluble in water to produce the complex [Fe(H₂O)₆]²⁺, which has octahedral molecular geometry and is paramagnetic.

Manufacturing Process

Ferrous sulfate monohydrate is obtained from a pickling solution containing ferrous chloride, hydrochloric acid and water and reacted in a precipitating reactor in the presence of excess sulfuric. Ferrous sulfate monohydrate is then converted in a crystallization reactor in the presence of water into ferrous sulfate heptahydrate as crystallized product. After which, water is isolated from the ferrous sulfate heptahydrate.