220930

Potassium nitrosodisulfonate

• Synonym(s): Dipotassium nitrosodisulfonate, Fremy’s salt
• Linear Formula: (KSO₃)₂NO
• CAS Number: 14293-70-0
• Molecular Weight: 268.33
• EC Number: 238-219-0
• MDL number: MFCD00010878
• UNSPSC Code: 12352000
• PubChem Substance ID: 24853200
• NACRES: NA.22
• form: powder

Properties

• form: powder
• Quality Level: 100
• reaction suitability: reagent type: oxidant
• storage temp.: 2-8°C
• SMILES string: [K+].[K+].[O]N(S([O-])(=O)=O)S([O-])(=O)=O
• InChI: 1S/2K.H2NO7S2/c;;2-1(9(3,4)5)10(6,7)8/h;;(H,3,4,5)(H,6,7,8)/q2*+1;/p-2
• InChI key: IHSLHAZEJBXKMN-UHFFFAOYSA-L

Description

General description

Potassium nitrosodisulfonate is an oxidizing reagent that can be used to convert phenols, naphthols, and anilines to quinones, benzylic alcohols to aldehydes or ketones, and amino acids to α-keto acids. It can also be used for the preparation of heterocyclic quinones and oxidative aromatization.

Application

Potassium nitrosodisulfonate can be used as an oxidizing reagent for the oxidation of:

• Aromatic amines to their corresponding quinones.
• Hydroethidine to 2-hydroxyethidium.
• Tyrosine to o-quinones.

Safety Information

• Pictograms: GHS02,GHS07
• Signal Word: Danger
• Hazard Statements: H260,H302 + H312 + H332
• Precautionary Statements: P223 - P231 + P232 - P280 - P301 + P312 - P302 + P352 + P312 - P304 + P340 + P312
• Hazard Classifications: Acute Tox. 4 Oral - Water-react 1
• Supplementary Hazards: EUH014
• Storage Class Code: 4.3 - Hazardous materials which set free flammable gases upon contact with water
• WGK: WGK 3
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves