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Merck
CN

307602

Ammonium hydrogensulfate

98%

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
UNSPSC Code:
12352300
PubChem Substance ID:
329753580
EC Number:
232-265-5
MDL number:
MFCD00051073
Assay:
98%

Key Documents

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InChI key

BIGPRXCJEDHCLP-UHFFFAOYSA-N

InChI

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

SMILES string

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

assay

98%

bp

350 °C (dec.)(lit.)

mp

121-145 °C (lit.)

density

1.79 g/mL at 25 °C (lit.)

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pictograms

Corrosion
GHS05

signalword

Danger

hcodes

H314

Hazard Classifications

Eye Dam. 1 - Skin Corr. 1B

Storage Class

8A - Combustible corrosive hazardous materials

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges

Regulatory Information

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Certificates of Analysis (COA)

Lot/Batch Number
BCBS4404V
BCBQ2457V
11508DJ
1317634
1372695

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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
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
J D Hackney et al.
Environmental health perspectives, 63, 57-61 (1985-11-01)
Observations of high acidity (pH as low as 1.7) in fogwater collected in polluted areas have provoked concern for public health. Effects of exposure to acidic pollutants have not been studied under foggy conditions; thus there is no directly relevant
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
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