Skip to Content
Merck
All Photos(1)

Documents

1.00103

Supelco

Amidosulfuric acid

for analysis EMSURE®

Synonym(s):

Amidosulfuric acid, Amidosulfonic acid, Sulphamic acid, Sulfamidic acid

Sign Into View Organizational & Contract Pricing
All Photos(1)

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)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service