282960

Sigma-Aldrich

Quinhydrone

97%

Synonym(s):
Hydroquinone: benzoquinone 1:1 complex
Linear Formula:
C6H4(OH)2 · C6H4O2
CAS Number:
Molecular Weight:
218.21
Beilstein/REAXYS Number:
3919222
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.22
Pricing and availability is not currently available.

Quality Level

assay

97%

composition

Carbon, 63.7-68.4%

mp

167-172 °C (lit.)

SMILES string

Oc1ccc(O)cc1.O=C2C=CC(=O)C=C2

InChI

1S/C6H6O2.C6H4O2/c2*7-5-1-2-6(8)4-3-5/h1-4,7-8H;1-4H

InChI key

BDJXVNRFAQSMAA-UHFFFAOYSA-N

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General description

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.

Application

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.

Packaging

25, 100 g in poly bottle

Pictograms

Skull and crossbonesEnvironment

Signal Word

Danger

Hazard Statements

Personal Protective Equipment

dust mask type N95 (US),Eyeshields,Gloves

RIDADR

UN 2811 6.1 / PGIII

WGK Germany

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificate of Analysis
Certificate of Origin
p-Benzosemiquinone radical anion on silver nanoparticles in water.
Tripathi G N R
Journal of the American Chemical Society, 125(5), 1178-1179 (2003)
Photoinduced electron transfer from porphyrin to C60 in a C60| porphyrin double-layer photoelectrochemical cell.
Takahashi K, et al.
Journal of Electroanalytical Chemistry, 426(1-2), 85-90 (1997)
Surface passivation effect of silicon substrates due to quinhydrone/ethanol treatment.
Takato H, et al.
Jpn J. App. Phys., Part I, 40(10A), L1003-L1003 (2001)
[Not Available].
P MARQUARDT et al.
Zeitschrift fur die gesamte innere Medizin und ihre Grenzgebiete, 2(11-12), 333-346 (1947-06-01)
Luigi Falciola et al.
Annali di chimica, 92(10), 945-954 (2002-12-20)
The rationale for the extension of the rH-metric standardization and measurements to aqueous-organic solvent mixtures is here introduced, and examples of establishment of the ranges of conventional rH-metric scales as well as primary standards rHs in some typical aqueous-organic solvent...

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