Ferrous sulfate (alum) molecular formula FeSO4•7H2O An inorganic
compound, anhydrous ferrous sulfate is a white powder, soluble in
water, the aqueous solution is light green, commonly found in its
heptahydrate (green alum). It is mainly used for water
purification, photo plate making and treatment of iron deficiency
anemia. Ferrous sulfate can cause pollution to water bodies,
irritate the human respiratory system and digestive system, and
excessive consumption can lead to life-threatening.Chemical
propertiesRestorative. Toxic gases are liberated by high heat
content. In the laboratory, it can be obtained by reacting a
solution of copper sulfate with iron. Weathering occurs in dry air.
In humid air, it is easily oxidized into brownish yellow alkaline
iron sulfate that is difficult to dissolve in water. The 10%
aqueous solution is acidic to litmus (ph value of about 3.7).
Heating to 70 ~ 73 °C to lose 3 molecular water, to 80 ~ 123 ° C to
lose 6 molecular water, to 156 ° C above the transformation into
alkaline iron sulfate. [1] Ferrous sulfate (alum) molecular
formula FeSO4•7H2O An inorganic compound, anhydrous ferrous sulfate
is a white powder, soluble in water, the aqueous solution is light
green, commonly found in its heptahydrate (green alum).Role and
useFerrous sulfate can be used for iron salts, iron oxide pigments,
mordants, water purification agents, preservatives, disinfectants,
etc.;ferrous sulphateferrous sulphate1. Water treatmentFerrous
sulfate is used for flocculation purification of water, as well as
to remove phosphate from municipal and industrial sewage to prevent
eutrophication of water bodies.2. Reducing agentA large amount of
ferrous sulfate is used as a reducing agent, mainly reducing
chromate in cement.3. MedicinalFerrous sulfate for the treatment of
iron deficiency anemia; It is also used to add iron to food, and
long-term overuse may cause side effects such as abdominal pain and
nausea.It can also be used as a local astringent and blood tonic in
medicine, and can be used for chronic blood loss caused by uterine
fibroids.4. Colorantsa. The production of ferric tannate ink and
other inks requires the use of ferrous sulfate. Wood-dyed mordants
also contain ferrous sulfate.b. Ferrous sulfate can be used to dye
concrete yellow rust color.c. Woodworking with ferrous sulfate to
dye maple wood silvery color.5. AgricultureAdjust the soil pH,
promote the formation of chlorophyll (also known as iron
fertilizer), can prevent the yellowing disease caused by iron
deficiency in flowers and trees. It is an indispensable element of
acid-loving flowers and trees, especially iron trees. It can also
be used as a pesticide in agriculture to prevent wheat smut
disease, apple and pear scar scab disease, and fruit tree rot
disease; It can also be used as fertilizer to remove moss and
lichen from the trunk./* January 22, 2024 19:08:37
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