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

Benzene FERROUS SULFATE Ammonium iron(III) sulfate

Preparation Products

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Quinhydrone Suppliers

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View Lastest Price from Quinhydrone manufacturers

Hebei Weibang Biotechnology Co., Ltd

Product: Quinhydrone 106-34-3
Price: US $25.00/ASSAYS
Min. Order: 100ASSAYS
Purity: 99.5%
Supply Ability: 100 mt
Release date: 2024-11-18

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 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:

1,4-Benzoquinone tert-Butylhydroquinone Trimethylhydroquinone Idebenone VITAMIN K4 Chloranil 2-Methylhydroquinone Hydroquinone 1,6-Dibromohexane Butoxybenzene Quinacridone MERCURY(II) SULFATE Quinoline saframycin Mx1 Quinhydrone Hydroquinonesulphonicacidsodiumsalt

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

QuinhydroneGr

p-benzoquinone hydroquinone complex

benzoquinhydrone

QUINHYDRONE

2,5-cyclohexadiene-1,4-dione compd. with 1,4-benzenediol

2,5-Cyclohexadiene-1,4-dione, compd. with 1,4-benzene diol

2,5-cyclohexadiene-1,4-dione, compd. with 1,4-benzenediol

Hydroquinone Monoester,Hydroquinone diester

2,5-Cyclohexadiene-1,4-dione 1,4-benzenediol (1:1)

Hydroquinone·1,4-benzoquinone

Quinhydrone,98%

Molecular coMp.of p-benzoquinone and hydroquinone

Quinhydrone, 98% 100GR

Quinhydrone, 98% 500GR

2,5-cyclohexadiene-1,4-dionecompd.with1,4-benzenediol(1:1)

beta-Quinhydrone

Chinhydron

Hydroquinone, compd. with p-benzoquinone

hydroquinone,compd.withp-benzoquinone

p-Benzoquinhydrone

p-Benzoquinone, compd. with hydroquinone

p-Benzoquinone, compd. with hydroquinone (1:1)

p-benzoquinone,compd.withhydroquinone(1:1)

p-Benzoquinone-hydroquinone compound (1:1)

benzoquinone coMpound with hydroquinone (1:1)

1,4-Benzoquinone hydroquinone complex (1:1), Cyclohexa-2,5-diene-1,4-dione benzene-1,4-diol (1:1)

Quinonehydroquinone

Quinhydrone 97%

QUINHYDRONE GR FOR ANALYSIS 100 G

QUINHYDRONE, 97.0%QUINHYDRONE, 97.0%QUINHYDRONE, 97.0%QUINHYDRONE, 97.0%

uinhydrone

Quinhydrone(Technical)

Quinhydrone ISO 9001：2015 REACH

Quinhydrone, GR 97%

Quinhydrone 106-34-3

Quinhydrone, Extra Pure, SLR, Fisher Chemical

106-34-3

C6H4O2C6H4OH2

C6H6O2C6H4O2

C12H11O4

C6H4OH2C6H4O2

1OC6H44OC6H414OH2

Organic Building Blocks

Ketones

Building Blocks

C3 to C6

Carbonyl Compounds

Benzoquinones

Hydroquinone

API intermediates