☣️ UN 2730 • CLASS 6
UN 2730 — Nitroanisoles, liquid
Placard: Toxic. ERG Guide 152. Training/quick-reference only — use current ERG + SOP/SOG for incident-specific actions.
🚒☣️
⚠️ Verification required:
Broad or variable material category; verify exact product, SDS and shipping papers.
⚠️ This page is a quick-reference aid. For real incidents: stage upwind, isolate, deny entry, request Hazmat early, and consult the current ERG + SOP/SOG.
Nitroanisoles, liquid covers nitroanisole isomers or mixtures. Treat the product as toxic and combustible until the exact isomer and SDS are confirmed.
Hazard overview: The main danger is toxic exposure through vapor, liquid contact or skin absorption. Heating or fire can produce nitrogen oxide fumes and heavier-than-air vapors.
Response guidance: Isolate the spill, keep ignition sources away and prevent entry into sewers. Use alcohol-resistant foam, dry chemical or CO2 for fire control and water spray for container cooling.
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UN 2730 Quick Details
UN 2730
Product name: Nitroanisoles, liquid
DOT Class: 6
Placard type: Toxic
ERG Guide: 152 (check current ERG)
Initial isolation: ERG 152: isolate spill 25m all directions; for large spills isolate 50m; evacuate immediate area; highly toxic, avoid vapor/liquid contact
Common Hazards of UN 2730
- Nitroanisoles are toxic by inhalation, ingestion and skin absorption.
- Liquid contact can irritate or injure skin and eyes; avoid any unprotected contact.
- Combustible liquid; vapors can form hazardous mixtures when heated.
- Vapors are heavier than air and may collect in low or confined spaces.
- Fire can produce toxic nitrogen oxides and irritating smoke.
- Runoff can spread toxic contamination to drains or waterways.
- Exact toxicity and physical properties vary by isomer or blend.
Chemical Identity & Physical Properties
Pale yellow to amber oily liquid with a faint aromatic odor. Slightly soluble in water. All three isomers (o-, m-, p-) are liquids at room temperature
| Also known as | ortho-Nitroanisolepara-Nitroanisolemeta-NitroanisoleMethoxy nitrobenzene isomersNitromethoxybenzene |
| Appearance | Pale yellow to amber oily liquid with a faint aromatic odor. Slightly soluble in water. All three isomers (o-, m-, p-) are liquids at room temperature. |
| Flash Point | 127°C (261°F) to 138°C (280°F) depending on isomer |
| Boiling Point | 258-274°C (496-525°F) depending on isomer |
| Vapor Density | 5.3 (heavier than air) |
| Water Reactivity | No significant reaction with water; slightly soluble |
Chemical details are general reference only. Always verify with current SDS, ERG, and SOP/SOG.
Fireground Response Guidance — UN 2730
Extinguishing Media
Alcohol-resistant foam, CO2, dry chemical, water spray for cooling
PPE Requirements
⚠️ Level A or B with full-face SCBA required; avoid all skin contact; highly toxic via all routes; impervious chemical-protective clothing mandatory
Use SCBA with chemical-protective clothing and gloves that prevent liquid contact; upgrade based on vapor monitoring and SDS.
Isolation & Evacuation
ERG 152: isolate spill 25m all directions; for large spills isolate 50m; evacuate immediate area; highly toxic, avoid vapor/liquid contact
Always confirm protective actions with the current edition of the Emergency Response Guidebook (ERG Guide 152).
First Actions for a UN 2730 Incident
- Call 911 and the emergency response number shown on the shipping papers.
- Keep unauthorized personnel away and deny entry to the spill or fire area.
- Stay upwind, uphill and upstream; avoid low areas where vapors or runoff may collect.
- Avoid breathing dust, vapor, mist or smoke; prevent skin and eye contact.
- Do not touch damaged containers or spilled material without appropriate PPE.
- Ventilate confined spaces only if personnel are trained, equipped and monitored.
- Use the ERG, SDS, shipping papers and air monitoring to set isolation, PPE and tactical decisions.
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📋 Copy & Share Field Card
UN 2730 — Nitroanisoles, liquidHAZMAT RADIO NOTE — UN 2730
Product: Nitroanisoles, liquid
Class 6 / Toxic / ERG 152
PPE: Level A or B with full-face SCBA required; avoid all skin contact; highly toxic via all routes; impervious chemical-protective clothing mandatory
ISOLATION: ERG 152: isolate spill 25m all directions; for large spills isolate 50m; evacuate immediate area; highly toxic, avoid vapor/liquid contact
ACTION: Stage upwind · Isolate · Deny entry · Request HazmatRADIO
Use for: Quick radio or face-to-face size-up. Short, structured, field-ready.
=== IC HAZMAT BRIEFING ===
UN 2730 — Nitroanisoles, liquid
Class: 6 | Placard: Toxic | ERG Guide: 152
Appearance: Pale yellow to amber oily liquid with a faint aromatic odor. Slightly soluble in water. All three isomers (o-, m-, p-) are liquids at room temperature.
Water Reactivity: No significant reaction with water; slightly soluble
Extinguishing: Alcohol-resistant foam, CO2, dry chemical, water spray for cooling
PPE: Level A or B with full-face SCBA required; avoid all skin contact; highly toxic via all routes; impervious chemical-protective clothing mandatory
Isolation: ERG 152: isolate spill 25m all directions; for large spills isolate 50m; evacuate immediate area; highly toxic, avoid vapor/liquid contact
— Key Hazards —
• Nitroanisoles are toxic by inhalation, ingestion and skin absorption.
• Liquid contact can irritate or injure skin and eyes; avoid any unprotected contact.
• Combustible liquid; vapors can form hazardous mixtures when heated.
— First Actions —
• Call 911 and the emergency response number shown on the shipping papers.
• Keep unauthorized personnel away and deny entry to the spill or fire area.
• Stay upwind, uphill and upstream; avoid low areas where vapors or runoff may collect.
• Avoid breathing dust, vapor, mist or smoke; prevent skin and eye contact.
SOURCE: allfirefighter.com/hazmat/un/nitroanisoles-liquid-un-2730 | Always use current ERG + SOP/SOGIC BRIEFING
Use for: Incident command briefing, staging area whiteboard, or pre-entry team brief.
UN2730 Nitroanisoles, liquid Cls6 ERG152 | allfirefighter.com/hazmat/un/nitroanisoles-liquid-un-2730SMS / 160 CHAR
Use for: Quick text to command or incoming units. Fits in a single SMS.
⚠️ Quick-reference only. Always use current ERG + SOP/SOG for incident-specific actions.
Page: https://allfirefighter.com/hazmat/un/nitroanisoles-liquid-un-2730
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Frequently Asked Questions about UN 2730
UN 2730 is Nitroanisoles, liquid, regulated as a toxic combustible nitroaromatic liquid for transport and emergency response.
The main concern is a toxic combustible nitroaromatic liquid behavior plus exposure risk from dust, vapor, liquid or fire products.
Approach from upwind, isolate the area, keep nonessential people out and verify the exact product with shipping papers or SDS.
Water is not expected to react violently, but it can spread contaminated liquid and should be managed as toxic runoff.
Use SCBA with chemical-protective clothing and gloves that prevent liquid contact; upgrade based on vapor monitoring and SDS.
A fire may produce toxic nitrogen oxides and heavy vapors that collect in low areas.
Sources (high level): DOT/PHMSA marking & class concepts + ERG usage principles.
This page does not reproduce ERG guide text—always consult the current ERG for incident-specific protective actions.