Product Identification
【Product Name】1,4-Benzoquinone dioxime
【Synonyms】Quinone dioxime  1,4-苯醌二肟
【CAS】105-11-3
【Formula】C6H6N2O2
【Molecular Weight】138.13999999999999
【EINECS】203-271-5
【RTECS】DK4900000
【RTECS Class】Tumorigen; Mutagen
【Beilstein/Gmelin】2043234
【Beilstein Reference】4-07-00-02074

Physical and Chemical Properties
【Appearance】Pale yellow crystals or brown powder.
【Solubility in water】Slightly soluble
【Melting Point】242
【Boiling Point】315
【Density】1.490 g/cm3 (20 C)
【pKa/pKb】10.54 (pKa)
【Partition Coefficient】.37
【Usage】Rubber accelerator.

First Aid Measures
【Ingestion】Never give anything by mouth to an unconscious person. Get medical aid. Do NOT induce vomiting. If conscious and alert, rinse mouth and drink 2-4 cupfuls of milk or water.
【Inhalation】Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.
【Skin】Get medical aid. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse.
【Eyes】Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.

Handling and Storage
【Storage】Keep container closed when not in use. Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.
【Handling】Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Minimize dust generation and accumulation. Avoid contact with eyes, skin, and clothing. Keep container tightly closed. Avoid ingestion and inhalation. Use with adequate ventilation. Wash clothing before reuse.

Hazards Identification
【Inhalation】Causes respiratory tract irritation. Can produce delayed pulmonary edema.
【Skin】Causes skin irritation.
【Eyes】Causes eye irritation. May cause chemical conjunctivitis.
【Ingestion】Harmful if swallowed. May cause gastrointestinal irritation with nausea, vomiting and diarrhea.
【EC Risk Phrase】R 11 22 40
【EC Safety Phrase】S 16 22 36/37
【UN (DOT)】1325

Exposure Controls/Personal Protection
【Personal Protection】Eyes: Wear appropriate protective eyeglasses or chemical safety ggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166. Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to prevent skin exposure.
【Respirators】A respiratory protection program that meets OSHA's 29 CFR 1910.134 and ANSI Z88.2 requirements or European Standard EN 149 must be followed whenever workplace conditions warrant a respirator's use. Wear a NIOSH/MSHA or European Standard EN 149 approved full-facepiece airline respirator in the positive pressure mode with emergency escape provisions.
【Exposure Effects】Effects may be delayed.
【Poison Class】3

Fire Fighting Measures
【Flash Point】243
【Fire Fighting】Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. To extinguish fire use water spray, dry chemical, carbon dioxide, or appropriate foam.
【Fire Potential】This material is probably combustible.

Accidental Release Measures
【Small spills/leaks】Clean up spills immediately, using the appropriate protective equipment. Sweep up or absorb material, then place into a suitable clean, dry, closed container for disposal. Avoid generating dusty conditions. Provide ventilation.

Stability and Reactivity
【Stability】Stable at room temperature in closed containers under normal storage and handling conditions.
【Incompatibilities】Strong oxidizing agents.
【Decomposition】Nitrogen oxides, carbon monoxide, irritating and toxic fumes and gases, carbon dioxide, nitrogen.

Transport Information
【UN Number】1325