Alternative Name
Benzoquinone
Major Category
Other Classes
Synonyms
p-Benzoquinone; 1,4-Benzoquine; 1,4-Benzoquinone; 1,4-Cyclohexadiene dioxide; 1,4-Cyclohexadienedione; 1,4-Diossibenzene [Italian]; 1,4-Dioxy-benzol [German]; 1,4-Dioxybenzene; 2,5-Cyclohexadiene-1,4-dione; Benzo-chinon [German]; Benzoquinone; Chinon [Dutch, German]; Chinone; Cyclohexadienedione; Quinone; Steara pbq; p-Chinon [German]; p-Quinone; para-Benzoquinone; para-Quinone; [ChemIDplus] UN2587
Category
Aromatic Ketones
Description
Pale-yellow solid with an acrid, chlorine-like odor; [NIOSH]
Sources/Uses
Used in the production of hydroquinone, dyes, and fungicides; also used as an oxidizing agent and photographic chemical; [ACGIH]
Comments
Benzoquinone can cause skin necrosis after prolonged contact. A dermal sensitizer (DSEN); [ACGIH TLVs and BEIs] A skin, eye, and respiratory tract irritant; [ICSC] Can cause corneal ulcers after acute exposure and corneal opacities after chronic exposure; [CAMEO] Suspected germ cell mutagen (3B); [MAK]
Skin Designation (ACGIH)
Insufficient data
TLV (ACGIH)
0.1 ppm, TLV-Surface Limit = 5 ug/100 cm2
Excerpts from Documentation for IDLHs
Basis for original (SCP) IDLH: The chosen IDLH is based on the mouse LCLO of 320 mg/m3 [Zabolevanii 1962 cited by NIOSH 1976]. No other data on acute inhalation toxicity are available on which to base the IDLH. . . . Basis for revised IDLH: No inhalation toxicity data are available on which to base an IDLH for quinone. Therefore, the revised IDLH for quinone is 100 mg/m3 based on acute oral toxicity data in animals [Woodward et al. 1949]. This may be a conservative value due to the lack of relevant acute toxicity data for workers.
Odor Threshold Low
0.1 ppm
Odor Threshold High
0.15 ppm
Explanatory Notes
Odor thresholds (detection at 0.1 ppm and recognition at 0.15 ppm) from CHEMINFO; Flash point = 93 deg C; VP from HSDB;
NFPA
high ambient temp required
IARC Carcinogen
Not classifiable
ACGIH Carcinogen
Not Classifiable
Diseases
Occupational diseases associated with exposure to this agent:
Processes
Industrial Processes with risk of exposure: