Lujiang alum
mines in Anhui Province is
China's largest producers of
natural potassium alum,
potassium alum
production license
by Chinese
Ministry of Chemical Industry Award for
quality products,
and exported to countries around the world.
Molecular
formula:
ALK(SO4)2• 12H2O
Quale: Colorless,
transparent, particle or
crystalline powder,
odorless,nontoxic,
tastes slightly sweet
and puckery, astringent,
easily soluble in water,
its water solution
appears acid, is would
lose crystal water and
become white powder on
heating.
Main Usage: In
the field of light and
Chemical Industries:
Purification of water,
paper making
and glue
spreading, painting,
printing and dyeing,
color lake and pigment,
medicine producing,varinish and leather
producing, fiber board
processing fixation and
membrane solidified for
film, and applied in
rubber, metallurgical
and colored glass etc.
industries.
In the field of food
stuff industry:
Fermentation of
foodstuff, vermicelli or
noodles processing,
salted aquatic,
foodstuff antisepsis and
additives etc.
In
the field of
Agricultural
Applications: Seed
sterilization and soak,
to cure the sickness for
drought animals, root solidation, germination,
stem strengthen fruit
plumpness and potash
fertilizer spreading for
some soil.
Chemical index: (standard: GB1895-94)
Standard\Standard | Alum content
% | Alumina
% | Ferric oxide
% | Arsenic
% | Heavy metal
% | Water
insolubles
%
|
Topgrade | 99.2 | 10.6 |
≤0.01 |
≤0.0002 |
≤0.002 |
≤0.2 |
Second grade | 98.6 | 10.5 |
≤0.01 |
≤0.0002 |
≤0.002 |
≤0.5 |
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