8.22333

Hydroquinone

for synthesis

• Synonym(s): Hydroquinone, 1,4-Dihydroxybenzene, Quinol
• Linear Formula: C₆H₄(OH)₂
• CAS Number: 123-31-9
• Molecular Weight: 110.11
• MDL number: MFCD00002339
• UNSPSC Code: 12352104
• EC Index Number: 204-617-8
• NACRES: NA.22
• Assay: ≥99.5% (GC)
• bp: 287 °C/1013 hPa
• vapor pressure: <0.1 hPa ( 25 °C)

Properties

• vapor pressure: <0.1 hPa ( 25 °C)
• Quality Level: 200
• 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
• SMILES string: Oc1ccc(cc1)O
• InChI: 1S/C6H6O2/c7-5-1-2-6(8)4-3-5/h1-4,7-8H
• InChI key: QIGBRXMKCJKVMJ-UHFFFAOYSA-N

Description

Application

Hydroquinone can be used as a reducing agent:

• To synthesize metal nanoparticles by reduction of metal salt precursors.[1][2]
• For the reduction of aryldiazonium salt intermediates to aromatic compounds.[3]
• In combination with ethylenediaminetetraacetic acid (EDTA) to prepare urchin-like gold nanoparticles via a one-pot seedless growth process.[4]

Safety Information

• Pictograms: GHS08,GHS05,GHS07,GHS09
• Signal Word: Danger
• Hazard Statements: H302,H317,H318,H341,H351,H410
• Precautionary Statements: P273 - P280 - P301 + P312 - P302 + P352 - P305 + P351 + P338 - P308 + P313
• 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