UN 2788 — Organotin compound, liquid, n.o.s.
Placard: Toxic. ERG Guide 153. Training/quick-reference only — use current ERG + SOP/SOG for incident-specific actions.
Organotin compound, liquid, n.o.s. is a broad toxic liquid entry. Response actions depend on the specific organotin compound, concentration and solvent carrier.
Hazard overview: This n.o.s. entry can cover different organotin liquids with different toxicity and solvent content. Inhalation, ingestion or skin contact may cause severe systemic poisoning. Liquid contact can irritate or burn skin and eyes depending on the compound and carrier.
Response guidance: Isolate the spill, avoid contact and keep runoff contained. Use SCBA and full chemical protection; choose firefighting agents and decon based on SDS, shipping papers and monitoring.
Firefighter training notes: Train responders to identify the UN number, product name, placard, container type and exposure route before committing personnel to the hot zone.
Regulatory context: Use the proper DOT shipping description, ERG guide, SDS and site-specific response plan; do not substitute this summary for regulatory compliance.
Storage & handling: Store in tightly closed, compatible containers away from heat, ignition sources, drains and incompatible materials listed in the SDS.
UN 2788 Quick Details
Common Hazards of UN 2788
- This n.o.s. entry can cover different organotin liquids with different toxicity and solvent content.
- Inhalation, ingestion or skin contact may cause severe systemic poisoning.
- Liquid contact can irritate or burn skin and eyes depending on the compound and carrier.
- Some formulations may be combustible and can produce toxic tin-containing fumes in fire.
- Vapors or mist may accumulate in poorly ventilated or confined spaces.
- Water may spread contamination even when no violent reaction occurs.
- Fire control water and absorbent can become highly toxic hazardous waste.
- Exact product identity must be confirmed from SDS and shipping papers.
Chemical Identity & Physical Properties
Variable appearance depending on specific compound; typically colorless to pale yellow liquid with mild to no odor at room temperature. May be oily or water-like in consistency.
| Also known as | Organotin liquidTin organic compoundStannane derivative liquidOrganostannane solution |
| Appearance | Variable appearance depending on specific compound; typically colorless to pale yellow liquid with mild to no odor at room temperature. May be oily or water-like in consistency. |
| Flash Point | Variable, depends on specific organotin compound and solvent; typically 23-61C (73-142F) for common formulations |
| Boiling Point | Variable, typically 150-300C (302-572F) depending on molecular weight and structure |
| Vapor Density | Heavier than air (typically 5-10 relative to air) |
| Water Reactivity | Variable by compound; some organotin liquids may hydrolyze slowly. Avoid water streams that spread toxic contamination. |
Fireground Response Guidance — UN 2788
Extinguishing Media
PPE Requirements
Level A or B required; full-face SCBA, chemical-resistant suit; severe skin and eye hazard requires double gloves and face shield minimum
Isolation & Evacuation
First Actions for a UN 2788 Incident
- Call 911 and the emergency response number shown on the shipping papers.
- Keep unauthorized personnel away and establish an initial isolation perimeter.
- Stay upwind, uphill and upstream; avoid low areas where vapors or runoff may collect.
- Avoid breathing vapors, dust, mist or smoke and prevent skin and eye contact.
- Do not touch damaged packages, leaking containers or spilled material without appropriate PPE.
- Keep water away from the material itself unless the SDS, ERG and incident commander confirm it is safe.
- Use ERG, SDS, shipping papers and air monitoring to set final isolation, evacuation and decon actions.
📋 Copy & Share Field Card
UN 2788 — Organotin compound, liquid, n.o.s.Use for: Quick radio or face-to-face size-up. Short, structured, field-ready.
Use for: Incident command briefing, staging area whiteboard, or pre-entry team brief.
Use for: Quick text to command or incoming units. Fits in a single SMS.