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About This Item
Empirical Formula (Hill Notation):
H3NO3S
CAS Number:
Molecular Weight:
97.09
UNSPSC Code:
12352301
EC Index Number:
226-218-8
NACRES:
NA.21
MDL number:
Assay:
≥99% (acidimetric)
Form:
solid
Quality Segment
product line
EMSURE®
assay
≥99% (acidimetric)
form
solid
technique(s)
UV/Vis spectroscopy: suitable
ign. residue
≤200 ppm
pH
1.2 (10 g/L in H2O)
mp
205 °C (decomposition)
solubility
213 g/L
density
2.13 g/cm3 at 20 °C
bulk density
600 kg/m3
anion traces
chloride (Cl-): ≤100 ppm, nitrate (NO3-): ≤20 ppm, sulfate (SO42-): ≤200 ppm
cation traces
Fe: ≤5 ppm, heavy metals (as Pb): ≤5 ppm
storage temp.
2-30°C
SMILES string
[S](=O)(=O)([N+H3])[O-]
InChI
1S/H3NO3S/c1-5(2,3)4/h(H3,1,2,3,4)
InChI key
IIACRCGMVDHOTQ-UHFFFAOYSA-N
Application
- Optimisation of sample pre-treatment in the HG-AAS selenium analysis.: Explores methods to improve sample preparation using amidosulfuric acid in hydride generation atomic absorption spectroscopy, which is crucial for detecting selenium in environmental samples (Schloske et al., 2002).
- [Preparation and use of amidosulfuric-acid-containing tablets for titration purposes].: Describes the formulation and application of amidosulfuric acid tablets designed for titration, simplifying quantitative analyses in chemical education and research (Subert and Chalabala, 1973).
Analysis Note
Assay (acidimetric): ≥ 99.0 %
Chloride (Cl): ≤ 100 ppm
Nitrate (NO): ≤ 20 ppm
Sulfate (SO): ≤ 200 ppm
Heavy metals (as Pb): ≤ 5 ppm
Fe (Iron): ≤ 5 ppm
Residue on ignition: ≤ 200 ppm
Chloride (Cl): ≤ 100 ppm
Nitrate (NO): ≤ 20 ppm
Sulfate (SO): ≤ 200 ppm
Heavy metals (as Pb): ≤ 5 ppm
Fe (Iron): ≤ 5 ppm
Residue on ignition: ≤ 200 ppm
Legal Information
EMSURE is a registered trademark of Merck KGaA, Darmstadt, Germany
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Signal Word
Warning
Hazard Codes
Precautionary Statements
Hazard Classifications
Aquatic Chronic 3 - Eye Irrit. 2 - Skin Irrit. 2
WGK
WGK 1
Flash Point (°F)
Not applicable
Flash Point (°C)
Not applicable
Storage Class
8B - Non-combustible corrosive hazardous materials
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