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Potassium alum, also known as potassium aluminum sulfate dodecahydrate, alum, alum, potassium alum, potassium alum, potassium alum, is a double salt containing potassium sulfate and aluminum sulfate in crystal water.
Basic information
Chemical formula:KAl(SO4)2.12H2O
Molecular weight: 474.388399.
CAS login number: 7784-24-9.
EINECS entry number: 233-141-3.
Appearance: Colorless cubic crystal.
Density: 1.757g/cm³.
Melting point: 92.5ºC, 64.5ºC to lose 9 molecules of crystal water, 200ºC to lose 12 molecules of crystal water.
Solubility: Easily soluble in water.
Acid-alkaline: Its aqueous solution is acidic and hydrolyzes in water to form a colloidal precipitation of aluminum hydroxide.
Item name | Unit | Standard value | Test results |
Potash alum | % | ≥99.2 | 99.3 |
Fe | % | ≤0.01 | 0.0035 |
Moisture | % | ≤1.0 | 0.85 |
2)Paper industry: As a paper sizing agent, it can significantly improve the surface strength and smoothness of paper, reduce the permeability and water absorption of paper, so as to improve the printing performance and writing effect of paper.
3)Other aspects: Can be used for the preparation of aluminum salt, baking powder, paint, tanning material, clarifying agent, mordant, waterproofing agent and other chemical raw materials, in dyes, ceramics and leather industry also has applications.
Packaging
25kg/1000kg,plastic woven bag with plastic bag inside,can provide customized services
Store in a dry,ventilated,cool place,away from direct sunlight.
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At the same time, relying on our own geographical location and resource advantages, our company is committed to the optimization of a variety of chemical supply chain, including magnesium chloride, sodium metabisulfite, sodium bicarbonate, calcium chloride, magnesium sulfate, polyaluminium chloride, aluminium sulfate, industrial salt, soda ash etc.
Our products are sold well in 288 domestic cities and more than 36 foreign countries. Now the company has won the praise and trust of domestic and foreign customers. Based on stable quality and output, good team service and staff efforts, we will continue to develop domestic and foreign markets.
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