PBQ/P-Benzoquinone CAS 106-51-4

Para-phenylenedioxane is a type of quinone organic compound. Pure para-phenylenedioxane is a bright yellow crystal with a pungent odor similar to that of chlorine; impure samples often appear dull due to the presence of quinone-hydroquinone (a 1:1 charge-transfer complex formed by para-phenylenedioxane and hydroquinone). Para-phenylenedioxane contains a non-aromatic six-membered ring and is the oxidation product of hydroquinone (para-phenylenediol).

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Model:
106-51-4
Brand:
futurechemical
Code:
106-51-4

Product Description

1,4-Benzoquinone Basic information
Product Name:	1,4-Benzoquinone
CAS:	106-51-4
MF:	C6H4O2
MW:	108.09
EINECS:	203-405-2
Mol File:	106-51-4.mol
1,4-Benzoquinone Chemical Properties
Melting point	113-115 °C(lit.)
Boiling point	293°C
bulk density	700kg/m3
density	1.31
vapor density	3.73 (vs air)
vapor pressure	0.1 mm Hg ( 25 °C)
refractive index	n20/D 1.453
Fp	38°C
storage temp.	room temp
solubility	10g/l
pka	7.7
form	Powder
color	Yellow to green
Odor	irritant odor
PH	4 (1g/l, H2O, 20℃)
biological source	synthetic
Water Solubility	10 g/L (25 ºC)
Merck	148,074
BRN	773967
Henry's Law Constant	2.1×10-2 mol/(m3Pa) at 25℃, HSDB (2015)
Exposure limits	TLV-TWA 0.4 mg/m3 (0.1 ppm); STEL 1.2 mg/m3 (0.3 ppm) (ACGIH); IDLH 75 ppm (NIOSH).
Stability:	Stable, but light sensitive. Incompatible with strong oxidizing agents. Flammable.
InChI	1S/C6H4O2/c7-5-1-2-6(8)4-3-5/h1-4H
InChIKey	AZQWKYJCGOJGHM-UHFFFAOYSA-N
SMILES	O=C1C=CC(=O)C=C1
LogP	0.1-0.3 at 23℃ and pH4.8-5.3
CAS DataBase Reference	106-51-4(CAS DataBase Reference)
NIST Chemistry Reference	p-Benzoquinone(106-51-4)
IARC	3 (Vol. 15, Sup 7, 71) 1999
EPA Substance Registry System	Quinone (106-51-4)