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Quinhydrone

Product Name
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
Formula Weight
218.21
MOL File
106-34-3.mol
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Quinhydrone Property

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.
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)
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Safety

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)
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Danger
Hazard statements

H301Toxic if swalloed

H400Very toxic to aquatic life

Precautionary statements

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P270Do not eat, drink or smoke when using this product.

P273Avoid release to the environment.

P301+P310IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician.

P391Collect spillage. Hazardous to the aquatic environment

P405Store locked up.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
282960
Product name
Quinhydrone
Purity
97%
Packaging
25g
Price
$39
Updated
2024/03/01
Sigma-Aldrich
Product number
282960
Product name
Quinhydrone
Purity
97%
Packaging
100g
Price
$123
Updated
2024/03/01
Sigma-Aldrich
Product number
1.02284
Product name
Quinhydrone
Purity
GR for analysis
Packaging
100g
Price
$220
Updated
2024/03/01
TCI Chemical
Product number
Q0008
Product name
Quinhydrone
Packaging
25g
Price
$34
Updated
2024/03/01
TCI Chemical
Product number
Q0008
Product name
Quinhydrone
Packaging
100g
Price
$94
Updated
2024/03/01
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Quinhydrone Chemical Properties,Usage,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).

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.

Definition

ChEBI: Quinhydrone is an addition compound. It contains a 1,4-benzoquinone and a hydroquinone.

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

Raw materials

Preparation Products

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View Lastest Price from Quinhydrone manufacturers

Hebei Mojin Biotechnology Co., Ltd
Product
Quinhydrone 106-34-3
Price
US $0.00/KG
Min. Order
1KG
Purity
99%
Supply Ability
50000KG/month
Release date
2023-08-28
Hebei Guanlang Biotechnology Co., Ltd.
Product
Quinhydrone 106-34-3
Price
US $25.00/ASSAYS
Min. Order
100化验
Purity
99.5%
Supply Ability
100 mt
Release date
2021-06-22
Hebei Runbin Biotechnology Co. LTD
Product
Quinhydrone 106-34-3
Price
US $80.00-50.00/KG
Min. Order
1KG
Purity
99.9%
Supply Ability
20tons
Release date
2020-09-02

106-34-3, QuinhydroneRelated Search:


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