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106-51-4

106-51-4 Structure

106-51-4 Structure
IdentificationMore
[Name]

1,4-Benzoquinone
[CAS]

106-51-4
[Synonyms]

1,4-BENZOCHINONE
1,4-BENZOQUINONE
2,5-CYCLOHEXADIENE-1,4-DIONE
BENZOQUINONE
BENZOQUINONE, 1,4-
CHINONE
CYCLOHEXADIENEDIONE
PARA BENZOQUINONE
P-BENZOQUINONE
p-benzoquinone 98+ % (dried)
P-QUINONE
QUINONE
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-benzol
[EINECS(EC#)]

203-405-2
[Molecular Formula]

C6H4O2
[MDL Number]

MFCD00001591
[Molecular Weight]

108.09
[MOL File]

106-51-4.mol
Chemical PropertiesBack Directory
[Description]

Quinone (p-benzoquinone) exists as a large yellow, monoclinic prism with an irritating odour resembling that of chlorine. Quinone is extensively used as a chemical intermediate, a polymerisation inhibitor, an oxidising agent, a photographic chemical, a tanning agent, and a chemical reagent. Quinone (p-benzoquinone) was first produced commercially in 1919 and has since been manufactured in several European countries. Its major use is in hydroquinone production, but it is also used as a polymerisation inhibitor and as an intermediate in the production of a variety of substances, including rubber accelerators and oxidising agents. It is used in the dye, textile, chemical, tanning, and cosmetic industries. In chemical synthesis for hydroquinone and other chemicals, quinone is used as an intermediate. It is also used in the manufacturing industries and chemical laboratory associated with protein fibre, photographic film, hydrogen peroxide, and gelatin making. Occupational exposure to quinone may occur in the dye, textile, chemical, tanning, and cosmetic industries. Inhalation exposure to quinone may occur from tobacco smoke.
[Appearance]

Quinone is a yellow, crystalline material or large yellow, monoclinic prisms. Pungent, irritating odor.
[Appearance]

gold powder
[mp ]

113-115 °C(lit.)
[bp ]

293°C
[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. ]

2-8°C
[Stability:]

Stable, but light sensitive. Incompatible with strong oxidizing agents. Flammable.
[Water Solubility ]

10 g/L (25 ºC)
[Merck ]

14,8074
[BRN ]

773967
[CAS DataBase Reference]

106-51-4(CAS DataBase Reference)
[NIST Chemistry Reference]

p-Benzoquinone(106-51-4)
[EPA Substance Registry System]

106-51-4(EPA Substance)
Safety DataBack Directory
[Hazard Codes ]

T,N,Xn,F
[Risk Statements ]

R23/25:Toxic by inhalation and if swallowed .
R36/37/38:Irritating to eyes, respiratory system and skin .
R50:Very Toxic to aquatic organisms.
R20/21/22:Harmful by inhalation, in contact with skin and if swallowed .
R11:Highly Flammable.
[Safety Statements ]

S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S28:After contact with skin, wash immediately with plenty of ... (to be specified by the manufacturer) .
S45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) .
S61:Avoid release to the environment. Refer to special instructions safety data sheet .
S23:Do not breathe gas/fumes/vapor/spray (appropriate wording to be specified by the manufacturer) .
S16:Keep away from sources of ignition-No smoking .
[RIDADR ]

UN 2587 6.1/PG 2
[WGK Germany ]

3
[RTECS ]

DK2625000
[F ]

8
[HazardClass ]

6.1
[PackingGroup ]

II
[HS Code ]

29146900
[Safety Profile]

Poison by ingestion, subcutaneous, intraperitoneal, and intravenous routes. Questionable carcinogen with experimental tumorigenic data by skin contact. Human mutation data reported. Quinone has a characteristic, irritating odor. Causes severe damage to the skin and mucous membranes by contact with it in the solid state, in solution, or in the form of condensed vapors. Locally, it causes dlscoloration, severe irritation, erythema, swehng, and the formation of papules and vesicles, whereas prolonged contact may lead to necrosis. When the eyes become involved, it causes dangerous disturbances of vision. The moist material self-heats and decomposes exothermically above 60℃. When heated to decomposition it emits acrid smoke and fumes.
[Hazardous Substances Data]

106-51-4(Hazardous Substances Data)
Raw materials And Preparation ProductsBack Directory
[Raw materials]

Sulfuric acid -->Aniline-->Manganese dioxide-->Hydroquinone-->Manganese
[Preparation Products]

Hydroquinone-->Pigment Red 122-->4-Methoxyphenol-->Ondansetron-->5-HYDROXY-2-METHYL-BENZOFURAN-3-CARBOXYLIC ACID-->Alclometasone-17,21-dipropionate-->5-HYDROXY-2-METHYL-BENZOFURAN-3-CARBOXYLIC ACID ETHYL ESTER-->1,2,4-Triacetoxybenzene-->3-NITROBENZO[B]FURAN-5-OL-->Etamsylate-->1,2,4-Benzenetriol-->2,4,5-Trimethoxybenzaldehyde-->1,4-Benzoquinone dioxime-->Trepibutone-->4-METHYLESCULETIN-->Esculetin-->carboquone-->Chlorohydroquinone
Hazard InformationBack Directory
[General Description]

A 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.
[Reactivity Profile]

BENZOQUINONE acts as an oxidizing agent .
[Air & Water Reactions]

Soluble in water and denser than water. If moist BENZOQUINONE(106-51-4) may decompose spontaneously above 140°F. This has occurred in drums, causing over-pressurization.
[Hazard]

Toxic by inhalation, strong irritant to skin, eyes and mucous membranes. Skin damage. Ques- tionable carcinogen.
[Health Hazard]

Poisonous; 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.
[Potential Exposure]

Due to this compound’s ability to react with certain nitrogen compounds to form colored sub- stances, quinone is widely used in the dye, textile, chemi- cal, tanning, and cosmetic industries. It is used as an industrial chemical; laboratory reagent; and as an interme- diate in chemical synthesis for hydroquinone and other chemicals.
[First aid]

If this chemical gets into the eyes, remove any contact lenses at once and irrigate immediately for at least 15 minutes, occasionally lifting upper and lower lids. Seek medical attention immediately. If this chemical contacts the skin, remove contaminated clothing and wash immediately with soap and water. Seek medical attention immediately. If this chemical has been inhaled, remove from exposure, begin rescue breathing (using universal precautions, including resuscitation mask) if breathing has stopped and CPR if heart action has stopped. Transfer promptly to a medical facility. When this chemical has been swallowed, get medi- cal attention. Give large quantities of water and induce vomiting. Do not make an unconscious person vomit.
[Shipping]

UN2587 Benzoquinone, Hazard Class: 6.1; Labels: 6.1-Poisonous materials.
[Incompatibilities]

Incompatible with oxidizers (chlorates, nitrates, peroxides, permanganates, perchlorates, chlorine, bromine, fluorine, etc.); contact may cause fires or explo- sions. Keep away from alkaline materials, strong bases, strong acids, oxoacids, epoxides, some combustible substances; reducing agents. Decomposes exothermically on warming above 60 ? C, when moist, producing carbon monoxide.
[Waste Disposal]

Controlled incineration (982℃, 2.0 seconds minimum).
Material Safety Data Sheet(MSDS)Back Directory
[msds information]

p-quinone(106-51-4).msds
Spectrum DetailBack Directory
[Spectrum Detail]

1,4-Benzoquinone(106-51-4)IR1
1,4-Benzoquinone(106-51-4)MS
1,4-Benzoquinone(106-51-4)IR3
1,4-Benzoquinone(106-51-4)13CNMR
1,4-Benzoquinone(106-51-4)IR2
1,4-Benzoquinone(106-51-4)1HNMR
1,4-Benzoquinone(106-51-4)ESR
Well-known Reagent Company Product InformationBack Directory
[Acros Organics]

1,4-Benzoquinone, 99%(106-51-4)
[Alfa Aesar]

p-Benzoquinone, 98+%(106-51-4)
[Sigma Aldrich]

106-51-4(sigmaaldrich)
[TCI AMERICA]

1,4-Benzoquinone,>98.0%(T)(106-51-4)
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