| Customization: | Available |
|---|---|
| CAS No.: | 10043-01-3 |
| Appearance: | Flake |
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Aluminum sulfate, commonly known as alum, is a white crystalline solid with the chemical formula . It has a molecular weight of
342.15 g/mol. This compound is highly soluble in water, dissolving to form an acidic solution. Aluminum sulfate has a melting point
of 770°C (1420°F) and decomposes at higher temperatures, releasing sulfur trioxide and aluminum oxide. It is odorless and typically
appears in a hydrated form, The compound is non-combustible and stable under normal conditions but should be kept away from
strong bases, as it can react violently.
Items |
Specifications |
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I Type:Low Ferrous/Low Iron |
II Type:Non-Ferrous/Iron-free |
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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 |
||
Heavy metal (Pb) %≤ |
0.002 |
0.002 |
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Aluminum sulfate, commonly known as alum, has diverse applications across various industries. One of its primary uses is in water
treatment, where it acts as a coagulant to purify drinking water and treat wastewater. By aggregating impurities into larger particles,
it facilitates their removal through sedimentation and filtration. In the paper manufacturing industry, aluminum sulfate is used to enhance
paper quality by improving its sizing and retention properties, making the paper more durable and less absorbent. It is also employed
in dyeing and printing textiles, where it helps fix dyes onto fabrics, ensuring vivid and long-lasting colors.
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