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Chemical Name: 2-Nitrobenzaldehyde
Chemical Formula: C7H5NO3
Common Use: Acts as an intermediate in chemical reactions, frequently appears in research labs and some manufacturing sites. Its bright yellow crystalline form might look harmless, but looks deceive.
Synonyms: ortho-Nitrobenzaldehyde, o-nitrobenzaldehyde
Hazard Class: Causes irritation to eyes, skin, and respiratory tract.
GHS Label Elements: Exclamation mark symbol means this chemical brings acute toxicity and revolts against careless handling.
Main Risks: Dust inhalation stings the nose and throat, plus possible coughing.
Signal Word: Warning—use with discipline, not bravado.
Some Effects: Prolonged exposure pokes at the liver and kidneys. The nitro group brings its own oxidizing tendencies, which demands respect.
Ingredient: 2-Nitrobenzaldehyde
CAS Number: 552-89-6
Purity Range: Research-grade batches usually hit over 98% purity, but impurities slip in with poor storage or sloppy suppliers.
Eye Contact: Rinse gently with water for several minutes, keep eyelids apart. Seek medical attention if redness or vision trouble holds on.
Skin Contact: Grab a running faucet and scrub with soap. Change out of contaminated clothes; don’t let the irritant stew.
Inhalation: Step into fresh air. Annoying cough or shortness of breath deserves a physician’s eye—don’t try to tough it out.
Ingestion: Rinse mouth with water, skip forced vomiting, and call for skilled help. The aldehyde group is reactive for a reason.
Suitable Extinguishers: Use dry chemical, carbon dioxide, or alcohol-resistant foam.
Hazardous Combustion Products: Burns release toxic smoke, including nitrogen oxides and carbon monoxide.
Protective Equipment: Firefighters should wear self-contained breathing apparatus and bunker gear; don’t skimp.
Firefighting Advice: Move containers if it’s safe, but don’t invite risk. Burning debris can sap oxygen fast.
Personal Precautions: Don gloves and goggles. Stop dust spreading by dampening the area, and section off the spill with a physical barrier.
Environmental Precautions: Prevent chemical from running into drains or natural waterways; nitro compounds drift and linger.
Cleanup Methods: Scoop up the bulk material and place it in a secure waste container. Wash the area with soap and lots of water.
Handling: Use only with proper ventilation—don’t depend on common sense alone. Avoid any unfiltered sniff or touch. Spilled powder isn’t just messy; it’s hazardous.
Storage: Stash the chemical in tightly sealed containers, cool and dry. Keep far from sunlight and oxidizing agents. Humidity welcomes clumps and surprises.
Incompatible Materials: Store away from strong acids and bases.
Engineering Controls: Fume hoods matter a lot; do all work under ventilation. Gloveboxes suit fine for small-scale prep.
Personal Protective Equipment: Chemical-resistant gloves, wrap-around safety goggles, and lab coats keep most risks at bay. Dust masks or respirators help if powders might go airborne.
Hygiene Advice: Don’t eat or drink where the chemical is handled. Wash hands before leaving the lab.
Appearance: Bright yellow crystalline powder, tends to stick along cracks and crevices.
Odor: Bitter almond scent—heralded as a tell for some aldehydes, but don't test your nose.
Melting Point: About 58–59°C, not stable when heated long.
Boiling Point: Decomposes before boiling; aldehydes and nitro groups don’t lend themselves to safe distillation.
Solubility: Soluble in organic solvents like ethanol and ether, barely dissolves in water.
Other Notes: Dust can escape open containers. Static buildup sparks aren’t imaginary.
Chemical Stability: Stable in cool, dry conditions away from sunlight.
Reactivity: Reacts with strong oxidizers and reducers, making volatile or noxious byproducts.
Decomposition: If heated above 100°C or mixed poorly, can break down, sending out nitrogen oxides, which are rough on lungs.
Likely Routes of Exposure: Eyes, skin, inhalation, ingestion. No shortcut, risks exist whether accidental or through repeat exposure.
Short-Term Effects: Irritation, redness, cough, and headache. Swallowing could mean nausea and stomach upset.
Long-Term Risks: Some studies warn of liver and kidney stress. Use caution and get medical records if regular exposure happens.
Carcinogenicity: Not conclusively proved as a cancer risk in people, but the nitro group warns chemists not to treat it like household vinegar.
Ecotoxicity: Toxic to aquatic life in high concentrations; don’t dump in drains or streams.
Persistence: Nitro compounds stick around, leaching through soil and water. Breakdown happens slowly.
Bioaccumulation: Data shows some accumulation in fish and plants—no reason to ignore runoff risks.
Waste Handling: Gather up solid or liquid waste in secure, labelled containers. Avoid letting waste evaporate inside labs.
Disposal Method: Send to licensed hazardous waste facilities. Mixing with standard trash isn’t safe or legal.
Environmental Caution: Confirm all materials removed from drains, floors, and benches.
UN Number: Classified under chemicals not otherwise specified; check the latest hazardous material lists for updates.
Packing Group: Varies based on state, but treat as hazardous in transit.
Transport Conditions: Protect containers from jolts, leaks, and rough temperature swings. Report any spillage on public routes to the authorities, no matter how inconvenient.
Regulation Status: Not listed as an extremely hazardous chemical, but workplace safety laws in US, EU, and elsewhere require risk assessment and proper signage.
Employee Rights: Workers can ask for exposure monitoring and get health surveillance if requested.
Label Requirements: All storage and shipping must show hazard pictograms and risk statements in plain language.
