481505
Sulfamic acid
99.999% trace metals basis
Synonym(s):
Amidosulfonic acid
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About This Item
Linear Formula:
NH2SO3H
CAS Number:
Molecular Weight:
97.09
NACRES:
NA.22
PubChem Substance ID:
UNSPSC Code:
12352301
EC Number:
226-218-8
MDL number:
Assay:
99.999% trace metals basis
Form:
crystals
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
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.
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.
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signalword
Warning
hcodes
Hazard Classifications
Aquatic Chronic 3 - Eye Irrit. 2 - Skin Irrit. 2
Storage Class
8A - Combustible corrosive hazardous materials
wgk
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
dust mask type N95 (US), Eyeshields, Faceshields, Gloves
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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: 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)