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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)

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W J Mautz et al.
Toxicological sciences : an official journal of the Society of Toxicology, 61(2), 331-341 (2001-05-16)
The purpose of this study was to examine a broad range of toxicologic responses in rats exposed to a multi-component pollutant atmosphere. Cumulative and adaptive respiratory tract responses to 3 concentrations of an inhaled particle-oxidant mixture were examined in Fisher
Sangil Lee et al.
Journal of the Air & Waste Management Association (1995), 57(9), 1123-1135 (2007-10-05)
Particulate matter (PM) less than 2.5 microm in size (PM2.5) source apportionment by chemical mass balance receptor modeling was performed to enhance regional characterization of source impacts in the southeastern United States. Secondary particles, such as NH4HSO4, (NH4)2SO4, NH4NO3, and
R B Schlesinger et al.
Environmental research, 52(2), 210-224 (1990-08-01)
Inhaled acidic sulfate aerosols affect various aspects of lung function, presumably by delivery of hydrogen ion (H+) to target sites. Recent evidence suggests that the relationship between response and H+ content of the exposure atmosphere may depend upon the specific
W S Tunnicliffe et al.
Occupational and environmental medicine, 60(11), e15-e15 (2003-10-24)
To explore the effects in normal and asthmatic adults of exposure to 200 ppb sulphur dioxide (SO2) and 200 microg/m3 and 2000 microg/m3 aerosols of ammonium bisulphate (AB) and sulphuric acid (SA) (MMD 0.3 microm). Exposures were placebo controlled, for
Chong Qiu et al.
Environmental science & technology, 45(11), 4748-4755 (2011-05-05)
The heterogeneous reactions between alkylamines and ammonium salts (ammonium sulfate and ammonium bisulfate) have been studied using a low-pressure fast flow reactor coupled to an ion drift-chemical ionization mass spectrometer (ID-CIMS) at 293 ± 2 K. The uptake of three
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