Specification parameters

essential information

Ferrous sulfate has reducibility. Under high heat decomposition, toxic gases are released. It is prone to oxidation in humid air to form brownish yellow basic iron sulfate that is insoluble in water. A 10% aqueous solution is acidic to litmus (pH value about 3.7). The corresponding ferrous sulfate crystal hydrate is heptahydrate at room temperature, which loses 3 molecules of water when heated to 70-73 ℃, 6 molecules of water when heated to 80-123 ℃, and transforms into basic ferric sulfate when heated above 156 ℃.
Ferrous sulfate aqueous solution easily forms a hexahydrate complex salt M2Fe (SO4) 2 · 6H2O with alkali metal sulfates (including ammonium salts), where M is an alkali metal ion or ammonium ion. Ferrous double salts are much more stable, such as ammonium ferrous sulfate (NH4) 2Fe (SO4) 2 · 6H2O, also known as Mohr's salt, which is a commonly used reducing reagent in analytical chemistry. It is soluble in water and glycerol and has a certain degree of reducibility.

application area

Ferrous sulfate can be used to produce iron salts, iron oxide pigments, mordants, water purifiers, preservatives, disinfectants, etc;
1. Water treatment
Ferrous sulfate is used for flocculation purification of water and removal of phosphates from urban and industrial wastewater to prevent eutrophication of water bodies.
2. Reducing agent
A large amount of ferrous sulfate is used as a reducing agent, mainly to reduce chromate in cement.
3. Medicinal use
Ferrous sulfate is used to treat iron deficiency anemia; It is also used to add iron to food. Long term excessive use may cause side effects such as abdominal pain and nausea.
Medically, it can also be used as a local astringent and blood supplement for chronic bleeding caused by uterine fibroids.
4. Coloring agent
a. The production of tannic acid iron ink and other inks requires the use of ferrous sulfate. The mordant used for wood dyeing also contains ferrous sulfate.
b. Ferrous sulfate can be used to dye concrete with a yellow rust color.
c. Woodworkers use ferrous sulfate to dye maple wood with a silver color.
5. Agriculture
Adjusting soil acidity and promoting chlorophyll formation (also known as iron fertilizer) can prevent and control yellowing disease caused by iron deficiency in flowers and trees. It is an essential element for acid loving flowers and trees, especially iron trees. In agriculture, it can also be used as a pesticide to prevent and control wheat smut, apple and pear scab, and fruit tree rot; It can also be used as fertilizer to remove moss and lichen from tree trunks.
6. Analytical Chemistry
Ferrous sulfate can be used as a chromatographic reagent.

Packaging, Storage, Transportation, and Safety

Packaging and Storage: The shelf life is 30 days in summer, and the outer packaging includes 50 kg and 25 kg woven bags. Ferrous sulfate is widely used in the treatment of bleaching, dyeing, and electroplating wastewater. It is an efficient water purification flocculant, especially in the decolorization treatment of bleaching and dyeing wastewater, with better results; It can be used as a raw material for ferrous sulfate monohydrate, which is widely used in the feed industry; It is the most important raw material for the efficient flocculant polymeric ferric sulfate in electroplating wastewater.  
Precautions for operation: Closed operation, local exhaust. Prevent dust from being released into the workshop air. Operators must undergo specialized training and strictly adhere to operating procedures. It is recommended that operators wear self-priming filter dust masks, chemical safety goggles, rubber acid and alkali resistant clothing, and rubber acid and alkali resistant gloves. Avoid generating dust. Avoid contact with oxidants and alkalis. Equip with emergency response equipment for leaks. Empty containers may contain residual harmful substances.