Skip to Content
Merck
All Photos(2)

Documents

481505

Sigma-Aldrich

Sulfamic acid

99.999% trace metals basis

Synonym(s):

Amidosulfonic acid

Sign Into View Organizational & Contract Pricing


About This Item

Linear Formula:
NH2SO3H
CAS Number:
Molecular Weight:
97.09
EC Number:
MDL number:
UNSPSC Code:
12352301
PubChem Substance ID:
NACRES:
NA.22

Quality Level

Assay

99.999% trace metals basis

form

crystals

mp

215-225 °C (dec.) (lit.)

density

2.151 g/cm3 at 25 °C

anion traces

chloride (Cl-): ≤0.001%
sulfate (SO42-): ≤0.05%

cation traces

Fe: ≤5 ppm
heavy metals (as Pb): ≤0.001%

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

Related Categories

General description

Sulfamic acid, the monoamide of sulfuric acid, is a strong inorganic acid. It is generally used in chemical cleaning processes like removal of nitrites, carbonate- and phosphate-containing deposits. It is used as a raw material for the preparation of a synthetic sweetener i.e, sodium cyclohexylsulfamate.

Sulfamic acid is an amino acid with sulfur and is mildly acidic. It acts as a green catalyst in the esterification reaction.

Application

Sulfamic acid can be used as a catalyst in:
  • Friedlander quinoline synthesis.
  • Liquid Beckmann rearrangement for the synthesis of amides from ketoximes.
  • The preparation of α-aminophosphonates via a three-component reaction between aldehydes, amines, and diethyl phosphite.

Features and Benefits

Meets A.C.S. reagent specifications.

Pictograms

Exclamation mark

Signal Word

Warning

Hazard Statements

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

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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

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)
Sulfamic acid
Ullmann's Encyclopedia of Industrial Chemistry (2000)
Sulfamic Acid and Sulfamates
Kirk-Othmer Encyclopedia of Chemical Technology (2000)
Yoshikubo K, et al.
Yoshikubo K and suzuki M, Kirk-Othmer Encyclopedia of Chemical Technology null
Sulfamic acid: an efficient acid catalyst for esterification of FFA
D?Oca MG, et al.
Fuel: The Science and Technology of Fuel and Energy, 97, 884-886 (2012)

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