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| Quinhydrone Basic information |
| Product Name: | Quinhydrone | | Synonyms: | 2,5-Cyclohexadiene-1,4-dione, compd. with 1,4-benzenediol (1:1);2,5-Cyclohexadiene-1,4-dione,compd.with1,4-benzenediol(1:1);GREEN HYDROQUINONE;HYDROQUINONE:BENZOQUINONE 1:1 COMPLEX;2,5-CYCLOHEXADIENE-1,4-DIONE CMPD WITH 1,4-BENZENEDIOL;Quinhydrone;2,5-Cyclohexadiene-1,4-dionecompdwith1,4-benzenediol(1:1);Greenhydroquinone;BALSAM CANADA, FILTERED FOR MICROSCOPY;QUINHYDRONE 98+% FOR ANALYTICAL PURPOSE | | CAS: | 106-34-3 | | MF: | C12H10O4 | | MW: | 218.21 | | EINECS: | 203-387-6 | | Product Categories: | Hydroquinone;API intermediates;Benzoquinones | | Mol File: | 106-34-3.mol |
| 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 Gravity | 0.863 (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 Reference | 106-34-3(CAS DataBase Reference) | | NIST Chemistry Reference | Quinhydrone(106-34-3) | | EPA Substance Registry System | Quinhydrone (106-34-3) |
| 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 | | Toxicity | LD50 orally in rats: 225 mg/kg (Woodward) |
| Quinhydrone Usage And Synthesis |
| Chemical Properties | a dark green crystalline powder which is a complex formed by benzoquinone and hydroquinone.
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.
| | Uses | In pH determinations (quinhydrone electrode). | | Uses | Quinhydrone 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. | | Uses | Used to measure the hydrogen ion concentration (pH) of a solution in a chemical experiment. It provides an alternative to the commonly used glass electrode in a pH meter. | | 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. | | Hazard | Toxic by ingestion. | | Purification Methods | Crystallise quinhydrone from H2O at 65o , then dry it in vacuo.[Beilstein 7 H 617, 7 IV 2069.] |
| Quinhydrone Preparation Products And Raw materials |
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