Synonyms : Alum; liquid alum；aluminum sulphate;water purifying agent
CAS NO. : 10043-01-3
EINECS : 233-135-0
Molecular formula : Al₂O₁₂S₃
Molecular weight: 342.15
Density : 2.67g/cm³
Melting Point : 770 °C
Items | Specifications | |||
I type low ferrous/low iron | II type non-ferrous/iron-free | |||
First class | Qualified | First class | Qualified | |
Al2O3 % ≥ | 15.8 | 15.6 | 17 | 16 |
Ferrous(Fe )% ≤ | 0.5 | 0.7 | 0.005 | 0.01 |
Water insolube % ≤ | 0.1 | 0.15 | 0.1 | 0.15 |
PH (1% aqueous solution) ≥ | 3.0 | 3.0 | 3.0 | 3.0 |
Arsenic(As) %≤ | -- | -- | 0.0005 | 0.0005 |
Used as a flocculant in water treatment
It is used as a sizing agent for paper in the paper industry
It is mainly used as a cement enhancer in the cement industry
It forms a foam fire extinguishing agent together with baking soda and foaming agent.
It is used as a beneficiation agent in the mining industry for extracting metallic minerals.
It is used as a tanning agent in the leather industry
It is used as an antiperspirant cosmetic raw material (astringent) in cosmetics.
As a component of electroplating solution, it is used for aluminum plating, copper plating, etc.
25/1000kg net PP/PE bags or as customer required..
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In China, we have established a strong business foundation and have set up office in Shanghai, focusing on providing customers with supply chain solutions for specialty chemicals as well as international sourcing and distribution services.