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242780

Sigma-Aldrich

Sulfamic acid

reagent grade, 98%

Sinónimos:
Amidosulfonic acid
Fórmula lineal:
NH2SO3H
Número de CAS:
Peso molecular:
97.09
EC Number:
MDL number:
PubChem Substance ID:

Quality Level

grade

reagent grade

assay

98%

form

powder or crystals

mp

215-225 °C (dec.) (lit.)

solubility

water: 213 g/L at 20 °C
water: 470 g/L at 80 °C

density

2.151 g/cm3 at 25 °C

SMILES string

NS(O)(=O)=O

InChI

1S/H3NO3S/c1-5(2,3)4/h(H3,1,2,3,4)

InChI key

IIACRCGMVDHOTQ-UHFFFAOYSA-N

Gene Information

human ... CA1(759) , CA2(760)

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General description

Sulfamic acid (H2NSO3H) is a strong inorganic acid. It exists in zwitterionic form and neutral forms. Zwitterionic form is more stable than neutral form.

The ability of sulfamic acid/zinc powder to reduce nitrate to nitrogen gas under acidic condition has been utilized to denitrify nitrate-rich wastewater.

Application

Sulfamic acid (H2NSO3H) may be used in the following studies:
  • As a catalyst in the synthesis of aryl-14H-dibenzo[a.j]xanthenes.
  • As a green catalyst for the liquid Beckmann rearrangement of ketoxime in dried acetonitrile.
  • As a nitrogen source as well as an in situ activator of hydroxy groups in the direct iridium-catalyzed synthesis of primary allylic amines from allylic alcohols.
  • Synthesis of polysubstituted quinolones.

Packaging

12 kg in poly drum
1, 3 kg in poly bottle

pictograms

Exclamation mark

signalword

Warning

Hazard Classifications

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

Storage Class Code

8A - Combustible, corrosive hazardous materials

WGK Germany

WGK 1

Flash Point F

Not applicable

Flash Point C

Not applicable

Certificado de Análisis

Certificado de origen

Denitrification of simulated nitrate-rich wastewater using sulfamic acid and zinc scrap.
Jang JH, et al.
Chemical Papers, 65(4), 437-446 (2011)
Sulfamic acid: an efficient, cost-effective and recyclable solid acid catalyst for the Friedlander quinoline synthesis.
Yadav JS, et al.
Tetrahedron Letters, 46(42, 7249-7253 (2005)
Solvent effects. 2. Medium effect on the structure, energy, charge density, and vibrational frequencies of sulfamic acid.
Wong MW, et al.
Journal of the American Chemical Society, 114(2), 523-529 (1992)
Sulfamic acid: a novel and efficient catalyst for the synthesis of aryl-14H-dibenzo [a. j] xanthenes under conventional heating and microwave irradiation.
Rajitha B, et al.
Tetrahedron Letters, 46(50), 8691-8693 (2005)
Sulfamic acid as a cost-effective and recyclable catalyst for liquid Beckmann rearrangement, a green process to produce amides from ketoximes without waste.
Wang B, et al.
Tetrahedron Letters, 45(17), 3369-3372 (2004)

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