481505

Sulfamic acid

99.999% trace metals basis

• Synonym(s): Amidosulfonic acid
• Linear Formula: NH₂SO₃H
• CAS Number: 5329-14-6
• Molecular Weight: 97.09
• EC Number: 226-218-8
• MDL number: MFCD00011603
• UNSPSC Code: 12352301
• PubChem Substance ID: 24871761
• NACRES: NA.22

Properties

• 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 (SO₄^2-): ≤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)

Description

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.

Safety Information

• pictograms: GHS07
• signalword: Warning
• hcodes: H315,H319,H412
• pcodes: P264 - P273 - P280 - P302 + P352 - P305 + P351 + P338 - P332 + P313
• Hazard Classifications: Aquatic Chronic 3 - Eye Irrit. 2 - Skin Irrit. 2
• Storage Class: 8B - Non-combustible corrosive hazardous materials
• wgk_germany: WGK 1
• flash_point_f: Not applicable
• flash_point_c: Not applicable
• ppe: dust mask type N95 (US), Eyeshields, Faceshields, Gloves