Skip to Content
Merck
All Photos(4)

Documents

242772

Sigma-Aldrich

Sulfamic acid

ReagentPlus®, ≥99%

Synonym(s):

Amidosulfonic acid

Sign Into View Organizational & Contract Pricing
All Photos(4)

About This Item

Linear Formula:
NH2SO3H
CAS Number:
5329-14-6
Molecular Weight:
97.09
EC Number:
226-218-8
MDL number:
MFCD00011603
UNSPSC Code:
12352106
PubChem Substance ID:
329752619
NACRES:
NA.21

Quality Level

100

product line

ReagentPlus®

Assay

≥99%

form

powder or crystals

mp

215-225 °C (dec.) (lit.)

solubility

water: 50 mg/mL, clear, colorless

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)

Looking for similar products? Visit Product Comparison Guide

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.

Legal Information

ReagentPlus 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

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: 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: 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)
Iridium-catalyzed synthesis of primary allylic amines from allylic alcohols: sulfamic acid as ammonia equivalent.
Christian Defieber et al.
Angewandte Chemie (International ed. in English), 46(17), 3139-3143 (2007-03-14)
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)
View All Related Papers

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