60235

Potassium disulfate

puriss. p.a., ≥97.5% (T)

• Sinónimos: Potassium pyrosulfate
• Fórmula empírica (notación de Hill): K₂S₂O₇
• Número de CAS: 7790-62-7
• Peso molecular: 254.32
• EC Number: 232-216-8
• MDL number: MFCD00011385
• UNSPSC Code: 12352302
• PubChem Substance ID: 329758835
• NACRES: NA.21
• assay: ≥97.5% (T)
• form: powder or crystals

Propiedades

• grade: puriss. p.a.
• assay: ≥97.5% (T)
• form: powder or crystals
• impurities: ≤0.002% total nitrogen (N)
• pH: 1-2 (25 °C, 25.5 g/L)
• density: 2.28 g/mL at 25 °C (lit.)
• anion traces: chloride (Cl^-): ≤5 mg/kg; phosphate (PO₄^3-): ≤10 mg/kg
• cation traces: Ag: ≤5 mg/kg; Al: ≤5 mg/kg; As: ≤5 mg/kg; Ba: ≤5 mg/kg; Bi: ≤5 mg/kg; Ca: ≤10 mg/kg; Cd: ≤5 mg/kg; Co: ≤5 mg/kg; Cr: ≤5 mg/kg; Cu: ≤5 mg/kg; Fe: ≤5 mg/kg; Li: ≤5 mg/kg; Mg: ≤5 mg/kg; Mn: ≤5 mg/kg; Mo: ≤5 mg/kg; Na: ≤50 mg/kg; Ni: ≤5 mg/kg; Pb: ≤5 mg/kg; Sr: ≤5 mg/kg; Tl: ≤5 mg/kg; Zn: ≤5 mg/kg
• SMILES string: [K+].[K+].[O-]S(=O)(=O)OS([O-])(=O)=O
• InChI: 1S/2K.H2O7S2/c;;1-8(2,3)7-9(4,5)6/h;;(H,1,2,3)(H,4,5,6)/q2*+1;/p-2
• InChI key: KAQHZJVQFBJKCK-UHFFFAOYSA-L

Descripción

General description

Potassium disulfite (Potassium pyrosulfate) has been synthesized from potassium hydrogen sulfate, via melting.

Application

Potassium disulfite supported on silica may be used for the synthesis of ethyl pyruvate.

Other Notes

Reagent for the decomposition of basic metal oxides by fusion

Información de seguridad

• pictograms: GHS06,GHS05
• signalword: Danger
• hcodes: H314,H331
• pcodes: P260 - P271 - P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338
• Hazard Classifications: Acute Tox. 3 Inhalation - Eye Dam. 1 - Skin Corr. 1A
• Storage Class: 6.1B - Non-combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials
• wgk_germany: WGK 3