Skip to Content
MilliporeSigma
All Photos(1)

Key Documents

8.22333

Sigma-Aldrich

Hydroquinone

for synthesis

Synonym(s):

Hydroquinone, 1,4-Dihydroxybenzene, Quinol

Sign Into View Organizational & Contract Pricing


About This Item

Linear Formula:
C6H4(OH)2
CAS Number:
Molecular Weight:
110.11
MDL number:
UNSPSC Code:
12352104
EC Index Number:
204-617-8
NACRES:
NA.22

vapor pressure

<0.1 hPa ( 25 °C)

Quality Level

assay

≥99.5% (GC)

form

solid

autoignition temp.

515 °C

potency

302 mg/kg LD50, oral (Rat)

reaction suitability

reagent type: reductant

bp

287 °C/1013 hPa

mp

172 °C (decomposition)

transition temp

flash point 165 °C

solubility

70 g/L

density

1.358 g/cm3 at 20 °C

bulk density

600 kg/m3

storage temp.

2-30°C

InChI

1S/C6H6O2/c7-5-1-2-6(8)4-3-5/h1-4,7-8H

InChI key

QIGBRXMKCJKVMJ-UHFFFAOYSA-N

Application

Hydroquinone can be used as a reducing agent:
  • To synthesize metal nanoparticles by reduction of metal salt precursors.
  • For the reduction of aryldiazonium salt intermediates to aromatic compounds.
  • In combination with ethylenediaminetetraacetic acid (EDTA) to prepare urchin-like gold nanoparticles via a one-pot seedless growth process.

signalword

Danger

Hazard Classifications

Acute Tox. 4 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - Carc. 2 - Eye Dam. 1 - Muta. 2 - Skin Sens. 1B

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

329.0 °F - closed cup

flash_point_c

165 °C - closed cup


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Stuart T Gentry et al.
Langmuir : the ACS journal of surfaces and colloids, 25(5), 2613-2621 (2009-05-14)
Hydroquinone (HQ) was used as the principal chemical reducing agent to prepare aqueous silver nanocolloids from silver nitrate. The data demonstrate that HQ is unable to initiate the particle growth process on its own, but is able to sustain particle
Hydroquinone as a reducing agent for conversion of aryldiazonium salts into arenes
McDonald RN and Richmond JM
Journal of the Chemical Society. Chemical Communications, (17), 605-606 (1973)
Facile synthesis of urchin-like gold nanoparticles using binary reducing agent composed of EDTA and hydroquinone
Nhat Hang NT and Phuong Phong NT
Vietnam Journal of Chemistry, 56(6), 667-671 (2018)
The formation of gold nanoparticles using hydroquinone as a reducing agent through a localized pH change upon addition of NaOH to a solution of HAuCl4
Mechler A, et al.
Colloids and Surfaces. A, Physicochemical and Engineering Aspects, 370(1-3), 35-41 (2010)

Related Content

MILLIPLEX® genotoxicity assays enable high-throughput measurement of DNA damage, reducing time and cost.

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service