1.01031

Aluminium ammonium sulfate dodecahydrate

for analysis EMSURE^® ACS

• Synonym(s): Aluminium ammonium sulfate dodecahydrate, Alum ammonium, Ammonium alum
• Linear Formula: NH₄Al(SO₄)₂ · 12 H₂O
• CAS Number: 7784-26-1
• Molecular Weight: 453.33
• MDL number: MFCD00149958
• UNSPSC Code: 12352302
• EC Index Number: 232-055-3

Properties

• grade: ACS reagent
• Quality Level: 300
• product line: EMSURE^®
• Assay: 99.0-102.0% (complexometric)
• form: solid
• impurities: ≤0.005% Insoluble matter
• pH: 2.6 (25 °C, 100 g/L in H₂O)
• bp: 200 °C/1013 hPa
• mp: 93 °C
• bulk density: 700‑800 kg/m³
• anion traces: chloride (Cl^-): ≤0.0005%; nitrate (NO₃^-): ≤0.001%
• cation traces: As: ≤0.00005%; Ca: ≤0.05%; Cr: ≤0.0005%; Fe: ≤0.0002%; K: ≤0.005%; Mn: ≤0.0005%; Na: ≤0.005%; heavy metals (as Pb): ≤0.001%
• storage temp.: 2-30°C
• InChI: 1S/Al.H3N.2H2O4S.12H2O/c;;2*1-5(2,3)4;;;;;;;;;;;;/h;1H3;2*(H2,1,2,3,4);12*1H2/q+3;;;;;;;;;;;;;;;/p-3
• InChI key: WZUKKIPWIPZMAS-UHFFFAOYSA-K

Description

Application

• The Individual Differences in the Perception of Oral Chemesthesis Are Linked to Taste Sensitivity.: Research highlights the link between chemesthetic perceptions and taste sensitivity, emphasizing the role of compounds like aluminum ammonium sulfate in sensory science, useful in tailoring consumer products to enhance palatability and efficacy (Sandell MA et al., 2021).


• Compounding MgCl₂·6H₂O with NH₄Al(SO₄)₂·12H₂O or KAl(SO₄)₂·12H₂O to Obtain Binary Hydrated Salts as High-Performance Phase Change Materials.: Demonstrates the application of aluminum ammonium sulfate in creating efficient phase change materials for thermal energy storage, suggesting its broader applicability in sustainable energy solutions (Zhang Z et al., 2019).


• Behavioral effects of long-term oral administration of aluminum ammonium sulfate in male and female C57BL/6J mice.: This animal study investigates the long-term effects of aluminum ammonium sulfate consumption, contributing to safety assessments and regulatory standards for its use in consumer products (Miyakawa T et al., 2018).


• The Revision of Aluminum-containing Food Additive Provisions in China.: Discusses regulatory changes and safety evaluations of aluminum-based additives like aluminum ammonium sulfate in the food industry, impacting formulation and compliance strategies (Zhang JB et al., 2016).

Analysis Note

Assay (complexometric): 99.0 - 102.0 %
Insoluble matter: ≤ 0.005 %
Chloride (Cl): ≤ 0.0005 %
Nitrate (NO₃): ≤ 0.001 %
Heavy metals (as Pb): ≤ 0.001 %
As (Arsenic): ≤ 0.00005 %
Ca (Calcium): ≤ 0.05 %
Cr (Chromium): ≤ 0.0005 %
Fe (Iron): ≤ 0.0002 %
K (Potassium): ≤ 0.005 %
Mn (Manganese): ≤ 0.0005 %
Na (Sodium): ≤ 0.005 %
Corresponds to ACS

Legal Information

EMSURE is a registered trademark of Merck KGaA, Darmstadt, Germany

Safety Information

• Storage Class Code: 13 - Non Combustible Solids
• WGK: WGK 2