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455849

Sigma-Aldrich

Ammonium hydrogensulfate

99.99% trace metals basis

Synonym(s):

Ammonium bisulfate, Ammonium sulfate monobasic

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About This Item

Linear Formula:
(NH4)HSO4
CAS Number:
7803-63-6
Molecular Weight:
115.11
EC Number:
232-265-5
MDL number:
MFCD00051073
UNSPSC Code:
12352302
PubChem Substance ID:
24869087
NACRES:
NA.23

Assay

99.99% trace metals basis

form

crystalline

impurities

≤200 mg/kg Trace metallic impurities analysis (ICP)

bp

350 °C (dec.)(lit.)

mp

121-145 °C (lit.)

density

1.79 g/mL at 25 °C (lit.)

SMILES string

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

InChI

1S/H3N.H2O4S/c;1-5(2,3)4/h1H3;(H2,1,2,3,4)

InChI key

BIGPRXCJEDHCLP-UHFFFAOYSA-N

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Application

  • Enhancement of Aesthetic Dental CAD-CAM Materials through Surface Etching with a Mixed Aqueous Solution of Ammonium Fluoride and Ammonium Hydrogen Sulfate - This study explores the potential of ammonium hydrogen sulfate in surface etching applications for dental materials, focusing on its low toxicity and effective etching capabilities (Y Nishizawa et al., 2024).
  • Thermodynamics of ammonioalunite precipitation in ammonium aluminum sulfate solution - Investigates the thermodynamic properties of ammonium aluminum sulfate solutions, providing insights into chemical processes involving ammonium hydrogen sulfate (X Yang et al., 2020).
  • Hygroscopic behavior and chemical composition evolution of internally mixed aerosols composed of oxalic acid and ammonium sulfate - Studies the hygroscopic properties of mixed aerosol particles, including those formed with ammonium hydrogen sulfate, to understand atmospheric chemical processes better (X Wang et al., 2017).

Pictograms

Corrosion
GHS05

Signal Word

Danger

Hazard Statements

H314

Hazard Classifications

Eye Dam. 1 - Skin Corr. 1B

Storage Class Code

8B - Non-combustible corrosive hazardous materials

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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Michael T Kleinman et al.
Journal of the Air & Waste Management Association (1995), 53(9), 1080-1087 (2003-09-19)
This study tested the hypothesis that exposure to mixtures containing fine particles and ozone (O3) would cause pulmonary injury and decrements in functions of immunological cells in exposed rats (22-24 months old) in a dose-dependent manner. Rats were exposed to
Ammonium bisulfite contact dermatitis: face eczema due to a bleaching ointment used during hair-dying.
A Nassif
Contact dermatitis, 55(2), 124-124 (2006-08-26)
R W Stacy et al.
Archives of environmental health, 38(2), 104-115 (1983-03-01)
A total of 231 normal male human subjects were exposed for 4 hr to air, ozone, nitrogen dioxide, or sulfur dioxide; to sulfuric acid, ammonium bisulfate, ammonium sulfate, or ammonium nitrate aerosols; or to mixtures of these gaseous and aerosol
B G Ferris et al.
Environmental health perspectives, 63, 5-9 (1985-11-01)
Problems associated with estimation of human exposure to ambient air pollutants are discussed. Ideally, we would prefer to have some indication of actual dose. For most pollutants this is not presently feasible. Specific problems discussed are adequacy of outdoor monitors;
T B Martonen et al.
Environmental health perspectives, 63, 11-24 (1985-11-01)
Atmospheric sulfate aerosols [H2SO4, (NH4)2SO4, and NH4HSO4] are of international concern because of their global prevalence and potential irritant or toxic effects on humans. To assess hazards following inhalation exposure, the total dose delivered to the human respiratory tract and
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