PBQ/P-Benzoquinone CAS 106-51-4

Benzochinone is a quinone organic compound. Pure benzochinone appears as bright yellow crystals with a pungent odor similar to chlorine. Impure samples often exhibit a dull color due to the presence of hydroquinone benzochinone (a 1:1 charge-transfer complex formed between benzochinone and hydroquinone). Benzochinone contains a non-aromatic six-membered ring and is the oxidized product of hydroquinone (p-benzoquinol).

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Model:
106-51-4
Brand:
bosschemical
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
density	1.31
bulk density	700kg/m3
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
PH	4 (1g/l, H2O, 20℃)
Odor	irritant odor
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)

PBQ/P-Benzoquinone CAS 106-51-4 C6H4O2 Food preservative Food antioxidant Edible flavor and fragrance Feed additive

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Chemical detection methods

Spectroscopic Analysis Methods

Ultraviolet-Vis Spectrophotometry (UV-Vis)
Infrared Spectroscopy (IR/FTIR)
Atomic Absorption Spectroscopy (AAS)
X-ray Fluorescence Spectroscopy (XRF)
Nuclear Magnetic Resonance Spectroscopy (NMR)

Chromatographic Analysis

Gas Chromatography (GC)
High Performance Liquid Chromatography (HPLC)
Ion Chromatography (IC)
Thin Layer Chromatography (TLC)

Mass Spectrometry Analysis

GC-MS / LC-MS/MS: Qualitative and Quantitative Analysis
ICP-MS: Trace Metal Elements (ppb Level)
TOF-MS: Precise Molecular Weight Determination

Electrochemical analysis methods

Polypotentiometric methods
Conductivity methods
Polarographic methods / Voltammetric methods
Coulometric analysis

Thermal Analysis Methods

Thermogravimetric Analysis (TGA)
Differential Scanning Calorimetry (DSC)
Differential Thermal Analysis (DTA)

Classical wet chemical analysis

Titration analysis
Gravity analysis