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204501

Sigma-Aldrich

Ammonium sulfate

99.999% trace metals basis

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Synonym(s):
Mascagnite
Linear Formula:
(NH4)2SO4
CAS Number:
Molecular Weight:
132.14
EC Number:
MDL number:
UNSPSC Code:
12352302
eCl@ss:
38030408
PubChem Substance ID:
NACRES:
NA.23

Quality Level

Assay

99.999% trace metals basis

form

crystals and lumps

technique(s)

HPLC: suitable

impurities

≤15.0 ppm Trace Metal Analysis

pH

5.0-6 (25 °C, 132 g/L)

mp

>280 °C (dec.) (lit.)

solubility

acetone: insoluble(lit.)
ethanol: insoluble(lit.)

density

1.77 g/mL at 25 °C (lit.)

SMILES string

N.N.OS(O)(=O)=O

InChI

1S/2H3N.H2O4S/c;;1-5(2,3)4/h2*1H3;(H2,1,2,3,4)

InChI key

BFNBIHQBYMNNAN-UHFFFAOYSA-N

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General description

Ammonium sulfate is a less corrosive sulfating agent that is used to synthesize the highly efficient acid catalyst for biodiesel production.

It can also be used to enhance the stability of perovskite solar cells. The incorporation of sulfate species minimizes chemical degradation at the perovskite/ETL interface. It is insoluble in acetone, alcohol and ether.

Application

Ammonium sulfate can be used:
  • As a structure-directing agent (SDA) to prepare hexagonal WO3 nanorod thin films for high-performance energy storage devices. The addition of (NH4)2SO4 prevents agglomeration of crystals.
  • As an electrolyte for aqueous ammonium dual-ion batteries and MnO2/carbon supercapacitors.
  • As a blowing agent to prepare porous carbon structures for supercapacitors. These porous materials show high capacitance and long-term stability.
  • To enhance the stability of perovskite solar cells. The incorporation of sulfate species minimizes chemical degradation at the perovskite/ETL interface.

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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A novel aqueous ammonium dual-ion battery based on organic polymers
Yadi Zhang, et al.
Journal of Materials Chemistry, 7, 11314-11320 (2019)
N, S co-doped porous graphene-like carbon synthesized by a facile coal tar pitch-blowing strategy for high-performance supercapacitors
Gang Li, et al.
Chemical Physics Letters, 827, 140712-140712 (2023)
Low temperature water based electrolytes for MnO 2/carbon supercapacitors
Alexander J Roberts, et al.
Physical Chemistry Chemical Physics, 15, 3518-3526 (2013)
Ammonium sulfate treatment at the TiO2/perovskite interface boosts operational stability of perovskite solar cells
Bening Tirta Muhammad, et al.
Journal of Materials Chemistry, 9, 14334-14341 (2021)
Facile synthesis of self-assembled WO3 nanorods for high-performance electrochemical capacitor
Pragati A. Shinde, et al.
Journal of alloys and compounds, 770, 1130-1137 (2019)

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