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2,2,6,6-Tetramethylpiperidinooxy

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2,2,6,6-Tetramethylpiperidinooxy Basic information
2,2,6,6-Tetramethylpiperidinooxy Chemical Properties
  • Melting point:36-38 °C(lit.)
  • Boiling point:193°C
  • Density 1 g/cm3
  • vapor pressure 0.4 hPa (20 °C)
  • refractive index 1.4350 (estimate)
  • Flash point:154 °F
  • storage temp. 2-8°C
  • solubility 9.7g/l
  • form Powder
  • color Yellow to green
  • PH8.3 (9g/l, H2O, 20℃)
  • Water Solubility Soluble in all organic solvents. Insoluble in water.
  • Merck 14,9140
  • BRN 1422418
  • Stability:Stable. Incompatible with strong acids, strong oxidizing agents. Refrigerate.
  • InChIKeyRVWUHFFPEOKYLB-UHFFFAOYSA-N
  • CAS DataBase Reference2564-83-2(CAS DataBase Reference)
  • NIST Chemistry Reference1-Piperidinyloxy, 2,2,6,6-tetramethyl-(2564-83-2)
  • EPA Substance Registry System1-Piperidinyloxy, 2,2,6,6-tetramethyl- (2564-83-2)
Safety Information
  • Hazard Codes C,Xi
  • Risk Statements 34-36/37/38
  • Safety Statements 26-36/37/39-45-24/25
  • RIDADR UN 3263 8/PG 2
  • WGK Germany 3
  • RTECS TN8991900
  • Autoignition Temperature275 °C
  • TSCA Yes
  • HazardClass 8
  • PackingGroup III
  • HS Code 29333999
MSDS
2,2,6,6-Tetramethylpiperidinooxy Usage And Synthesis
  • Chemical Propertiesorange crystals or powder
  • UsesTEMPO(2,2,6,6-Tetramethylpiperidinooxy) is a stable radical prepared through the oxidation of 2,2,6,6-tetramethylpiperidine. TEMPO has a wide range of applications including use as a free radical scavenger, a reagent in organic synthe sis and as a structural probe in electron spin resonance spectroscopy. TEMPO can also be used as a mediator in free radical polymerization.
  • UsesIn organic chemistry as a radical trap, 2,2,6,6-Tetramethylpiperidinooxy can be used as a catalyst and in polymerization mediation.
  • Purification MethodsPurify TEMPO by sublimation (33o, water aspirator) [Hay & Fincke J Am Chem Soc 109 8012 1987, Keana Chem Rev 78 37 1978].
2,2,6,6-Tetramethylpiperidinooxy Preparation Products And Raw materials
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