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*This document is like a lab demo—an example Certificate of Analysis (COA) that showcases what a COA looks like but may not match the latest batch in all its glory. Think of it as a chemistry experiment: close, but not quite the final reaction!
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| hazards summary | Methemoglobinemia, liver injury, and visual impairment (central scotomas) have been reported in exposed workers. Listed in table of Industrial Chemicals for Which Methemoglobin Formation is the Principal Cause of Toxicity. m-Dinitrobenzene was eliminated from in vitro testing after little response was detected, even at high concentrations. . An eye and respiratory tract irritant. Can induce methemoglobinemia and have effects on the liver. The major hazards encountered in the use and handling of 1,3-dinitrobenzene stem from its toxicologic properties and explosivity. Toxic by all routes (ie, inhalation, ingestion, dermal absorption), exposure to this yellowish, crystalline substance may occur from its use in the production of analine, dyes, explosives, industrial solvents, and pesticides. Effects from exposure mayinclude contact burns to the skin and eyes, headache, nausea, lethargy, heart palpitations, methemoglobinemia, jaundice, and respiratory failure. Effects may be delayed up to 1-4 hours. OSHA has established an 8 hour, Time Weighted Average (TWA) limit of 1 mg/cu m, with a skin designation for this substance. In activities and situations where over-exposure may occur, wear a positive pressure self-contained breathing apparatus and chemical protective clothing which is specifically recommended by the shipper or manufacturer. If contact should occur, irrigate exposed eyes with copious amounts of tepid water for at least 15 minutes and wash exposed skin thoroughly with soap and water. Contaminated clothing should be removed and discarded or left at the site for cleaning before being reworn. 1,3-Dinitrobenzene is a severe explosion hazard when exposed to friction, mechanical shock, localized thermal shock, or contamination. For fires involving 1,3-dinitrobenzene, extinguish with dry chemical, CO2, water spray, fog, or standard foam. Fight the fire from as far a distance as possible in an explosion-resistant location. If fire is massive, back off, protect surroundings, and let burn. 1,3-Dinitrobenzene may be transported via air, rail, road, and water, in containers bearing the label, "Poison." 1,3-Dinitrobenzene should be stored in a permanent magazine, away from heat, sources of ignition, sources of physical damage, oxidizers, combustibles, caustics, and metals such as tin and zinc. For small spills of 1,3-dinitrobenzene, use a clean shovel to place material into clean, dry, covered containers for later disposal (liquid solutions are taken up with sand or other noncombustible absorbent). Dike far ahead of large liquid spills to prevent runoff. Large dry spills should be covered with plastic sheeting. Large spills into bodies of water should be trapped at the bottom with sand bag barriers, apply activated carbon, and use mechanical dredges or lifts to remove immobilized masses. |
