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A11411 Hydroquinone, 99%

CAS Number
123-31-9
Synonyms
1,4-Dihydroxybenzene
Quinol

Stock No. Size Price ($) Quantity Availability
A11411-30 250g 21.20
A11411-0B 1000g 55.10
A11411-0I 5000g 213.00
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Hydroquinone, 99%

MDL
MFCD00002339
EINECS
204-617-8

Chemical Properties

Formula
C6H6O2
Formula Weight
110.11
Melting point
170-172°
Boiling Point
285-287°
Flash Point
165°(329°F)
Density
1.320
Storage & Sensitivity
Air Sensitive. Light Sensitive. Store under Argon. Ambient temperatures.
Solubility
Soluble in water, methanol, ethanol, diethyl ether, acetone, benzene and carbon tetrachloride.

Applications

Hydroquinone is used as a reducing agent and finds applications in black and white photographic developers for film and paper along with 4-(methylamino)phenol sulfate (metol). In this application, silver halides are reduced to elemental silver. It acts as a polymerization inhibitor which prevents polymerization of acrylic acid, methyl methacrylate, cyanoacrylate and other monomers. It undergoes mild oxidation to convert into parabenzoquinone. It is also used as an intermediate to produce antioxidants for rubber and food.

Notes

Air and light sensitive. Incompatible with strong bases and strong oxidizing agents.

Literature References

Widely used as a radical trap to inhibit polymerization and peroxidation reactions.

Forms inclusion compounds (clathrates) with three molecules of hydroquinone held together by H bonds to form a cage in which a single guest molecule can be accommodated. For a review, see: D. D. MacNicol in Inclusion Compounds, Vol. 2, J. L. Atwood et al, Eds., Academic Press, London (1984), p1.

A stable 1:1 complex with hydrazine has been isolated and found to be a useful, safer replacement for anhydrous hydrazine, e.g. in the solid state reaction with esters to give hydrazides: J. Chem. Soc., Chem. Commun., 1531 (1995).

Boota, M.; Hatzell, K. B.; Kumbur, E. C.; Gogotsi, Y. Towards High-Energy-Density Pseudocapacitive Flowable Electrodes by the Incorporation of Hydroquinone. ChemSusChem 2015, 8 (5), 835-843.

Buzzo, G. S.; Rodrigues, A. C. B.; De Souza, R. F. B.; Silva, J. C. M.; Bastos, E. L.; Spinace, E. V.; Assumpcao, M. H. M. T. Synthesis of hydroquinone with co-generation of electricity from phenol aqueous solution in a proton exchange membrane fuel cell reactor. Catal. Commun. 2015, 59, 113-115.

GHS Hazard and Precautionary Statements

Hazard Statements: H302-H317-H318-H335-H341-H351-H500

Harmful if swallowed. May cause an allergic skin reaction. Causes serious eye damage. May cause respiratory irritation. Suspected of causing genetic defects. Suspected of causing cancer. May form combustible dust concentrations in air

Precautionary Statements: P201-P202-P261-P264b-P270-P271-P272-P280g-P281-P301+P312-P302+P352-P304+P340-P305+P351+P338-P308+P313-P310-P330-P333+P313-P363-P501c

Obtain special instructions before use. Do not handle until all safety precautions have been read and understood. Avoid breathing dust/fume/gas/mist/vapours/spray. Wash face, hands and any exposed skin thoroughly after handling Do not eat, drink or smoke when using this product. Use only outdoors or in a well-ventilated area. Contaminated work clothing should not be allowed out of the workplace. Wear protective gloves. Use personal protective equipment as required. IF SWALLOWED: Call a POISON CENTER or doctor/physician if you feel unwell. IF ON SKIN: Wash with plenty of soap and water. IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. IF exposed or concerned: Get medical advice/attention. Immediately call a POISON CENTER or doctor/physician. Rinse mouth. If skin irritation or rash occurs: Wash contaminated clothing before reuse. Dispose of contents/ container to an approved waste disposal plant

Other References

Merck
14,4808
Beilstein
605970
Hazard Class
9
Packing Group
III
Harmonized Tariff Code
2907.22
TSCA
Yes
RTECS
MX3500000

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