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383120

Sigma-Aldrich

Sulfamic acid

ACS reagent, 99.3%

Synonyme(s) :

Amidosulfonic acid

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About This Item

Formule linéaire :
NH2SO3H
Numéro CAS:
5329-14-6
Poids moléculaire :
97.09
Numéro CE :
226-218-8
Numéro MDL:
MFCD00011603
Code UNSPSC :
12352106
ID de substance PubChem :
329755668
Nomenclature NACRES :
NA.21

Qualité

ACS reagent

Niveau de qualité

200

Pureté

99.3%
99.3-100.3% dry basis (ACS specification)

Forme

crystals

Technique(s)

titration: suitable

Impuretés

≤0.01% insolubles

Résidus de calcination

≤0.01%

Pf

215-225 °C (dec.) (lit.)

Solubilité

water: 213 g/L at 20 °C

Densité

2.151 g/cm3 at 25 °C

Traces d'anions

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

Traces de cations

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

Chaîne SMILES 

NS(O)(=O)=O

InChI

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

Clé InChI

IIACRCGMVDHOTQ-UHFFFAOYSA-N

Informations sur le gène

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

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Catégories apparentées

Description générale

Sulfamic acid (H2NSO3H) is widely used inorganic compound. It exists in zwitterionic form and neutral forms. Zwitterionic form has been reported to be is more stable than neutral form. Its industrial applications have been reported. It has various organic synthesis applications.
Sulfamic acid is a strong inorganic acid. It is a hypochlorite scavenger. The ability of sulfamic acid to reduce nitrate to nitrogen gas under acidic condition has been utilized to denitrify nitrate-rich wastewater along with zinc powder.

Application

Sulfamic acid (H2NSO3H) may be used in the following studies:
  • As catalyst in the synthesis of aryl-14H-dibenzo[a.j]xanthenes.
  • As green catalyst for the preparation of amide from ketoxime.
  • As ammonia equivalent in the regioselective synthesis of primary allylic amines, via allylic substitution reactions.
  • Synthesis of polysubstituted quinolones.
Sulfamic acid may be used in the following processes:
  • As a titrant in the determination of the burette injection volume and chemical calibration factor.
  • To neutralize excess nitrous acid in the colorimetric paracetamol assay by modified Glynn and Kendal colorimetric method.
  • To prevent endogenous mercury (Hg) loss during the urine Hg measurement by inductively coupled plasma mass spectrometry (ICP-MS) method.
  • As an acid catalyst and a hypochlorite scavenger in the chlorite oxidation of dialdehyde cellulose (DAC).
  • As a heterogeneous catalyst in the synthesis of polyhydroquinoline derivatives by Hantzsch condensation reaction.
  • As catalyst in the degradation of bamboo fiber to 5-hydroxymethylfurfural (HMF).
  • As an acid reagent in the determination of silicates in water samples based on centrifugal microfluidics.
  • As catalyst in the synthesis of deazaoxaflavin at room temperature.

Pictogrammes

Exclamation mark
GHS07

Mention d'avertissement

Warning

Mentions de danger

H315,H319,H412

Classification des risques

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

Code de la classe de stockage

8B - Non-combustible corrosive hazardous materials

Classe de danger pour l'eau (WGK)

WGK 1

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable

Certificats d'analyse (COA)

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Consulter la Bibliothèque de documents

Neil A Demarse et al.
Analytical biochemistry, 417(2), 247-255 (2011-07-12)
Obtaining accurate results with nanowatt titration calorimeters with overflow cells requires mass calibration of the buret injection volume, chemical calibration of the reaction vessel effective volume, and chemical calibration of the calorimetric factor used to convert the measured electrical signal
Fathima Shihana et al.
Clinical toxicology (Philadelphia, Pa.), 48(1), 42-46 (2010-01-26)
Despite a significant increase in the number of patients with paracetamol poisoning in the developing world, plasma paracetamol assays are not widely available. The purpose of this study was to assess a low-cost modified colorimetric paracetamol assay that has the
Sulphamic acid assisted synthesis of polyhydroquinolines via Hantzsch multicomponent reaction: A green approach.
Lambat T, et al.
Journal of Chemical and Pharmaceutical Research, 6(4), 888-892 (2014)
Hyundoo Hwang et al.
Analytical chemistry, 85(5), 2954-2960 (2013-01-17)
In this study, we describe a novel platform based on centrifugal microfluidics for simultaneous determination of nitrite, nitrate and nitrite, ammonium, orthophosphate, and silicate in water samples. All processes from sample metering to detection were integrated and automatically conducted on
Conversion of bamboo fiber into 5-hydroxymethylfurfural catalyzed by sulfamic acid with microwave assistance in biphasic system.
Sun J, et al.
Industrial Crops and Products, 70, 266-271 (2015)
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