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Quinhydrone

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Quinhydrone Basic information
Quinhydrone Chemical Properties
  • Melting point:167-172 °C(lit.)
  • Boiling point:285 °C
  • Density 1.32
  • refractive index 1.4270 (estimate)
  • storage temp. Store below +30°C.
  • solubility 4g/l
  • form Crystalline Powder
  • color Dark green
  • Specific Gravity0.863 (20/4℃)
  • Water Solubility 4 g/L (20 ºC)
  • Sensitive Light Sensitive
  • Merck 14,8058
  • BRN 3919222
  • Stability:Stable. Incompatible with strong oxidizing agents.
  • CAS DataBase Reference106-34-3(CAS DataBase Reference)
  • NIST Chemistry ReferenceQuinhydrone(106-34-3)
  • EPA Substance Registry SystemQuinhydrone (106-34-3)
Safety Information
  • Hazard Codes Xn,N
  • Risk Statements 22-36/37/38-50
  • Safety Statements 26-36-61-37/39-29
  • RIDADR UN 2811 6.1/PG 3
  • WGK Germany 3
  • RTECS VA4550000
  • TSCA Yes
  • HS Code 2942 00 00
  • HazardClass 6.1
  • PackingGroup III
  • ToxicityLD50 orally in rats: 225 mg/kg (Woodward)
MSDS
Quinhydrone Usage And Synthesis
  • Chemical Propertiesa dark green crystalline powder which is a complex formed by benzoquinone and hydroquinone.
    Quinhydrone
    Quinhydrone is a general reagent used in potentiometric titrations. It can also be used as a π-acceptor in the formation of charge-transfer complex of analytes for spectrophotometric analysis.
  • UsesIn pH determinations (quinhydrone electrode).
  • UsesQuinhydrone is a hydrogen bonded 1:1 charge transfer complex of hydroquinone and p-benzo-quinone having semiconducting properties.
    Quinhydrone is addition compound of one mol hydroquinone and one mol Benzoquinone.
    Quinhydrone electrode is a type of redox electrode which can be used to measure the hydrogen ion concentration (pH) of a solution in a chemical experiment.
    Quinhydrone/methanol treatment for the measurement of carrier lifetime in crystalline silicon substrates has been reported. Surface passivation of silicon substrates by quinhydrone/ethanol treatment has been investigated.
  • HazardToxic by ingestion.
  • Purification MethodsCrystallise quinhydrone from H2O at 65o , then dry it in vacuo.[Beilstein 7 H 617, 7 IV 2069.]
Quinhydrone Preparation Products And Raw materials
Quinhydrone(106-34-3)Related Product Information
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