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Ammonium alum(CAS: 7784-26-1)

Ammonium alum
CAS Number

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Basic Information

Molecular Formula
H28AlNO20S2
Molecular Weight
449.3 g/mol

Physical Properties

Melting Point
93.5 °C (lit.)
Boiling Point
200 ºC
Density
1.64
Water Solubility
Soluble in water and glycerol. Insoluble in alcohol.

Chemical Identifiers

SMILES
[NH4+].O.O.O.O.O.O.O.O.O.O.O.O.[O-]S(=O)(=O)[O-].[O-]S(=O)(=O)[O-].[Al+3]
InChIKey
WZUKKIPWIPZMAS-UHFFFAOYSA-K

Database References

MDL Number
MFCD00000053

FAQ

Ammonium alum (CAS: 7784-26-1) is a hydrated double sulfate of aluminum and ammonium. Its chemical formula is NH4Al(SO4)2·12H2O. It is a white crystalline powder with a characteristic sweet and astringent taste. It is insoluble in alcohol but soluble in water.
Ammonium alum (CAS: 7784-26-1) is widely used in various industries. It serves as a mordant in dyeing and tanning, a leavening agent in baking, a water purifier, and a pH adjuster. It is also used in manufacturing fertilizers and as a flocculant in wastewater treatment.
Ammonium alum (CAS: 7784-26-1) is considered safe for most applications when used according to recommended guidelines. It is not considered flammable, but it can release toxic fumes if heated. Proper handling precautions include wearing gloves and safety goggles, and ensuring adequate ventilation. It is important to follow safety standards and avoid ingestion or inhalation of dust.
Ammonium alum (CAS: 7784-26-1) should be stored in a cool, dry place, away from direct sunlight and heat sources. It is stable in normal conditions but should be protected from moisture to avoid degradation. Use airtight containers to prevent moisture absorption. It is advisable to store it in a well-ventilated area to minimize the risk of fire due to the release of toxic fumes if heated.

Safety Notice

Please verify product specifications and safety data before use. Contact the supplier for detailed safety information.

Always follow proper handling procedures

Contact Information

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Tang Silei

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