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1.00103

Supelco

Amidosulfuric acid

for analysis EMSURE®

Synonym(s):

Amidosulfuric acid, Amidosulfonic acid, Sulphamic acid, Sulfamidic acid

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About This Item

Empirical Formula (Hill Notation):
H3NO3S
CAS Number:
5329-14-6
Molecular Weight:
97.09
MDL number:
MFCD00011603
UNSPSC Code:
12352301
EC Index Number:
226-218-8
NACRES:
NA.21

Quality Level

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 (SO42-): ≤200 ppm

cation traces

Fe: ≤5 ppm
heavy metals (as Pb): ≤5 ppm

storage temp.

2-30°C

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

Legal Information

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

Pictograms

Exclamation mark
GHS07

Signal Word

Warning

Hazard Statements

H315 - H319 - H412

Hazard Classifications

Aquatic Chronic 3 - Eye Irrit. 2 - Skin Irrit. 2

Storage Class Code

8B - Non-combustible, corrosive hazardous materials

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificates of Analysis (COA)

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