383120

Sulfamic acid

ACS reagent, 99.3%

• Sinônimo(s): Amidosulfonic acid
• Fórmula linear: NH₂SO₃H
• Número CAS: 5329-14-6
• Peso molecular: 97.09
• Número CE: 226-218-8
• Número MDL: MFCD00011603
• Código UNSPSC: 12352106
• ID de substância PubChem: 329755668
• NACRES: NA.21

Propriedades

• grau: ACS reagent
• Ensaio: 99.3%; 99.3-100.3% dry basis (ACS specification)
• forma: crystals
• técnica(s): titration: suitable
• Impurezas: ≤0.01% insolubles
• resíduo de ignição: ≤0.01%
• pf: 215-225 °C (dec.) (lit.)
• solubilidade: water: 213 g/L at 20 °C
• densidade: 2.151 g/cm³ at 25 °C
• traços de ânion: chloride (Cl^-): ≤0.001%; sulfate (SO₄^2-): ≤0.05%
• traços de cátion: Fe: ≤5 ppm; heavy metals (as Pb): ≤0.001%
• cadeia de caracteres SMILES: NS(O)(=O)=O
• InChI: 1S/H3NO3S/c1-5(2,3)4/h(H3,1,2,3,4)
• chave InChI: IIACRCGMVDHOTQ-UHFFFAOYSA-N
• Informações sobre genes: human ... CA1(759) , CA2(760)

Descrição

Descrição geral

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.

Aplicação

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.

Informações de segurança

• Pictogramas: GHS07
• Palavra indicadora: Warning
• Frases de perigo: H315,H319,H412
• Declarações de precaução: P264 - P273 - P280 - P302 + P352 - P305 + P351 + P338 - P332 + P313
• Classificações de perigo: Aquatic Chronic 3 - Eye Irrit. 2 - Skin Irrit. 2
• Código de classe de armazenamento: 8B - Non-combustible corrosive hazardous materials
• Classe de risco de água (WGK): WGK 1
• Ponto de fulgor (°F): Not applicable
• Ponto de fulgor (°C): Not applicable