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Catalog Number:
32040
CAS Number:
7784-26-1
Ammonium aluminum sulfate dodecahydrate
Grade:
ACS Reagent
Purity:
98 - 102% (Assay by titration)
Synonym(s):
Aluminum ammonium sulfate dodecahydrate, Ammonium alum
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Product Information

Ammonium aluminum sulfate dodecahydrate, commonly known as ammonium alum, is a versatile chemical compound widely utilized across various industries. This compound is recognized for its exceptional properties, including its ability to act as a coagulant in water treatment processes, making it invaluable in municipal and industrial water purification. Additionally, ammonium alum is employed in the food industry as a food additive, particularly in baking powder, where it enhances the leavening process. Its unique crystalline structure and high solubility also make it an effective agent in dyeing processes within the textile industry, providing vibrant colors and improved fabric quality.

Researchers and industry professionals appreciate ammonium aluminum sulfate dodecahydrate for its multifunctional applications, including its role in the production of fireproofing agents and as a mordant in photography. Its non-toxic nature and effectiveness in various formulations make it a preferred choice for many applications, offering a safer alternative compared to other chemical agents. With its wide-ranging uses and benefits, ammonium alum continues to be a critical component in both industrial and research settings.

Synonyms
Aluminum ammonium sulfate dodecahydrate, Ammonium alum
CAS Number
7784-26-1
Purity
98 - 102% (Assay by titration)
Grade
ACS Reagent
Molecular Formula
H4AlNO8S2·12H2O
Molecular Weight
453.33
MDL Number
MFCD00149958
PubChem ID
62668
Melting Point
~ 93 ?C (Lit.)
Density
1.64 (Lit.)
Appearance
Colorless Crystals
Conditions
Store at RT
General Information
Synonyms
Aluminum ammonium sulfate dodecahydrate, Ammonium alum
CAS Number
7784-26-1
Purity
98 - 102% (Assay by titration)
Grade
ACS Reagent
Molecular Formula
H4AlNO8S2·12H2O
Molecular Weight
453.33
MDL Number
MFCD00149958
PubChem ID
62668
Melting Point
~ 93 ?C (Lit.)
Density
1.64 (Lit.)
Appearance
Colorless Crystals
Conditions
Store at RT
Properties
Additional property information coming soon!
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Safety and Regulations
Hazmat
No
Antibiotic
No
DEA-regulated
No
Warnings
-
Applications

Ammonium aluminum sulfate dodecahydrate is widely utilized in research focused on:

  • Water Purification: This compound is commonly used as a coagulant in water treatment processes, helping to remove impurities and improve water clarity.
  • Food Industry: It serves as a food additive, particularly in baking powder, where it acts as a leavening agent, helping baked goods rise and achieve a light texture.
  • Textile Industry: In dyeing processes, it acts as a mordant, enhancing the adherence of dyes to fabrics, which results in brighter and more durable colors.
  • Cosmetics: It is used in various personal care products for its astringent properties, helping to tighten skin and reduce oiliness.
  • Laboratory Reagents: Researchers utilize it in analytical chemistry as a reagent for various experiments, particularly in the determination of certain metal ions.

Citations