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Key Documents

8.22333

Sigma-Aldrich

Hydroquinone

for synthesis

Synonym(s):

Hydroquinone, 1,4-Dihydroxybenzene, Quinol

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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.

Signal Word

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 Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

329.0 °F - closed cup

Flash Point(C)

165 °C - closed cup


Certificates of Analysis (COA)

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