1.00103

Amidosulfuric acid

for analysis EMSURE^®

• Synonym(s): Amidosulfuric acid, Amidosulfonic acid, Sulphamic acid, Sulfamidic acid
• Empirical Formula (Hill Notation): H₃NO₃S
• CAS Number: 5329-14-6
• Molecular Weight: 97.09
• UNSPSC Code: 12352301
• EC Index Number: 226-218-8
• NACRES: NA.21
• MDL number: MFCD00011603
• Assay: ≥99% (acidimetric)
• Form: solid

Properties

• Quality Segment: 300
• 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 (SO₄^2-): ≤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

Description

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

Legal Information

EMSURE is a registered trademark of Merck KGaA, Darmstadt, Germany

Safety Information

• pictograms: GHS07
• signalword: Warning
• hcodes: H315,H319,H412
• pcodes: P264 - P273 - P280 - P302 + P352 - P305 + P351 + P338 - P332 + P313
• 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