Quinhydrone
- CAS No.
- 106-34-3
- Chemical Name:
- Quinhydrone
- Synonyms
- GREEN HYDROQUINONE;HYDROQUINONE:BENZOQUINONE 1:1 COMPLEX;Hydroquinone Monoester,Hydroquinone diester;Chinhydron;uinhydrone;QUINHYDRONE;QuinhydroneGr;Quinhydrone,98%;Quinhydrone 97%;benzoquinhydrone
- CBNumber:
- CB9292163
- Molecular Formula:
- C12H10O4
- Molecular Weight:
- 218.21
- MOL File:
- 106-34-3.mol
- MSDS File:
- SDS
- Modify Date:
- 2023/8/28 13:27:38
| 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 |
| Specific Gravity | 0.863 (20/4℃) |
| color | Dark green |
| Water Solubility | 4 g/L (20 ºC) |
| Sensitive | Light Sensitive |
| Merck | 14,8058 |
| BRN | 3919222 |
| Stability | Stable. Incompatible with strong oxidizing agents. |
| LogP | 0.644 (est) |
| CAS DataBase Reference | 106-34-3(CAS DataBase Reference) |
| NIST Chemistry Reference | Quinhydrone(106-34-3) |
| EPA Substance Registry System | Quinhydrone (106-34-3) |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |   GHS06,GHS09 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Danger | |||||||||
| Hazard statements | H301-H400 | |||||||||
| Precautionary statements | P264-P270-P273-P301+P310-P391-P405 | |||||||||
| 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) | |||||||||
| NFPA 704 |
|
Quinhydrone price More Price(14)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | 282960 | Quinhydrone 97% | 106-34-3 | 25G | ₹1959.33 | 2022-06-14 | Buy |
| Sigma-Aldrich(India) | 282960 | Quinhydrone 97% | 106-34-3 | 25G | ₹1959.33 | 2022-06-14 | Buy |
| Sigma-Aldrich | 282960 | Quinhydrone 97% | 106-34-3 | 100G | ₹6256.85 | 2022-06-14 | Buy |
| Sigma-Aldrich(India) | 282960 | Quinhydrone 97% | 106-34-3 | 100G | ₹6256.85 | 2022-06-14 | Buy |
| Sigma-Aldrich | 1.02284 | Quinhydrone GR for analysis | 106-34-3 | 100G | ₹15050 | 2022-06-14 | Buy |
Quinhydrone Chemical Properties,Uses,Production
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).
Definition
The so-called quinhydrone electrode, containing equivalent amounts of p-benzoquinone and hydroquinone, is used to determine hydrogen ion concentrations of unknown solutions. Hydroquinone is used principally as a photographic developing agent. The main advantages of the quinhydrone electrode are low internal resistance, rapid response, high accuracy, simplicity, free of errors due to the presence of nonreducing gases, and free of salt errors. Major limitations are that it contaminates the solution, cannot be used to monitor a flowing solution, the solution must be free of strong oxidizing and reducing agents, and it is limited to a pH range of 1 to 9. In alkaline solution, the weakly acidic H2Q is neutralized and is subject to oxidation by air and dissolved oxygen. The main application of the quinhydrone electrode is in nonaqueous solvents where reproducible results are obtained in a variety of solvents. The tetra-chloro derivative (chloranil electrode) is even more useful.
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
| Supplier | Tel | Country | ProdList | Advantage | Inquiry |
|---|---|---|---|---|---|
| ALPHA CHEMIKA | +91-22-22061123 +91-22-66382501 | Mumbai, India | 1681 | 43 | Inquiry |
| Scientific OEM | +91-22- 2343 7546 / 2341 3094 | New Delhi, India | 1996 | 38 | Inquiry |
| CHEMSWORTH | +91-261-2397244 | New Delhi, India | 6707 | 30 | Inquiry |
| CLEARSYNTH LABS LTD. | +91-22-45045900 | Hyderabad, India | 6351 | 58 | Inquiry |
| TCI Chemicals (India) Pvt. Ltd. | 1800 425 7889 | New Delhi, India | 6778 | 58 | Inquiry |
| Otto Chemie Pvt. Ltd. | +91 9820041841 | Mumbai, India | 5873 | 58 | Inquiry |
| Alfa Aesar | 1 800 209 7001 | Maharashtra, India | 6913 | 58 | Inquiry |
| LOBA CHEMIE PVT.LTD. | 91-22-6663 6699 | Mumbai, India | 3077 | 58 | Inquiry |
| Central Drug House(P) Ltd. | 91-11-49404040 | New Delhi, India | 6160 | 58 | Inquiry |
| A. B. Enterprises | +91-8048077585 | Mumbai, India | 1396 | 58 | Inquiry |
| Supplier | Advantage |
|---|---|
| ALPHA CHEMIKA | 43 |
| Scientific OEM | 38 |
| CHEMSWORTH | 30 |
| CLEARSYNTH LABS LTD. | 58 |
| TCI Chemicals (India) Pvt. Ltd. | 58 |
| Otto Chemie Pvt. Ltd. | 58 |
| Alfa Aesar | 58 |
| LOBA CHEMIE PVT.LTD. | 58 |
| Central Drug House(P) Ltd. | 58 |
| A. B. Enterprises | 58 |