Product Name: P-Benzoquinone (PBQ) CAS 106-51-4 Model NO.: CT3202 Colour: Yellow Quality: Industrial Appearance: Powder Type: Quinones Benzoquinone: Benzoquinone Trademark: CT3202 Transport Package: in 25kgs Drum Specification: 99% Min Origin: China HS Code: 29 Product Description p-Benzoquinone Basic informationProduct Name:p-BenzoquinoneSynonyms:1,4-Benzochinon;1,4-Benzoquine;1,4-Cyclohexadiene dioxide;1,4-Cyclohexadienedione;1,4-cyclohexadienedioxide;1,4-Diossibenzene;1,4-dioxybenzene;1,4-Dioxy-benzolCAS:106-51-4MF:C6H4O2MW:108.09EINECS:203-405-2Mol File:106-51-4.molp-Benzoquinone Chemical PropertiesMelting point113-115°C(lit.)Boiling point293°Cdensity1.31vapor density3.73 (vs air)vapor pressure0.1 mm Hg ( 25 °C)refractive indexn20/D 1.453Fp38°Cstorage temp.2-8°CWater Solubility10 g/L (25 ºC)Merck14,8074BRN773967Stability:Stable, but light sensitive. Incompatible with strong oxidizing agents. Flammable.CAS Database Reference106-51-4(CAS Database Reference)NIST Chemistry Referencep-Benzoquinone(106-51-4)EPA Substance Registry System2,5-Cyclohexadiene- 1,4-dione(106-51-4)Safety InformationHazard CodesT,N,Xn,FRisk Statements23/25-36/37/38-50-20/21/22-11Safety Statements26-28-45-61-28A-23-16RIDADRUN 2587 6.1/PG 2WGK Germany3RTECSDK2625000F8HazardClass6.1PackingGroupIIHazardous Substances Data106-51-4(Hazardous Substances Data)p-Benzoquinone Usage And SynthesisChemical Propertiesgold powderGeneral DescriptionA yellowish-colored crystalline solid with a pungent, irritating odor. Poisonous by ingestion or inhalation of vapors. May severely damage skin, eyes and mucous membranes. Used to make dyes and as a photographic chemical.Air & Water ReactionsSoluble in water and denser than water. If moist 1,4-Benzoquinone may decompose spontaneously above 140°F. This has occurred in drums, causing over-pressurization.Reactivity Profile1,4-Benzoquinone acts as an oxidizing agent .Health HazardPoisonous; may be fatal if inhaled, swallowed or absorbed through the skin. Contact with solid, vapor or solution can cause severe local damage to the skin and mucous membranes. Symptoms include discoloration, severe irritation, erythema, swelling, papules and vesicles. Necrosis may result from long exposure. The eyes may experience irritation, conjunctivitis, photophobia, lacrymation and burning sensations. The cornea may suffer ulceration and scarring. Chronic eye exposure causes gradual brownish discoloration of the conjunctiva and cornea, small corneal opacities and damage in corneal structure which cause loss of visual acuity.