UN 1827 — Stannic chloride, anhydrous
Placard: Corrosive. ERG Guide 137. Training/quick-reference only — use current ERG + SOP/SOG for incident-specific actions.
UN 1827 is Stannic chloride, anhydrous, a fuming corrosive metal chloride assigned to ERG Guide 137. Water or moist air can produce dense hydrogen chloride fumes and corrosive tin-containing contamination.
Hazard overview: UN 1827 presents water-reactive HCl fume, corrosive liquid and heavy vapor hazards. Keep moisture away and control acidic runoff and decontamination waste.
Response guidance: For a UN 1827 incident, responders should verify the product with shipping papers, package markings, SDS and ERG Guide 137. Establish incident command, isolate the area, stay upwind, prevent incompatible contact, control runoff and choose entry or fire-control actions based on monitoring, SDS and local SOP.
Firefighter training notes: Training for UN 1827 should emphasize water-reactive fuming liquid behavior, dense acid vapor clouds, dry-agent selection, downwind control, PPE selection and decontamination. Use ERG 137, SDS and local hazmat SOP.
Regulatory context: Stannic chloride, anhydrous is regulated as a hazardous material for transportation and emergency response purposes. Transportation, workplace exposure, spill reporting, waste handling, storage and environmental requirements may vary by concentration, formulation, quantity and jurisdiction. Verify current requirements through shipping papers, SDS, facility documents and applicable DOT, OSHA, EPA, NFPA, state or local authority guidance.
Storage & handling: Stannic chloride, anhydrous should be stored in tightly closed compatible containers in a cool, dry, well-ventilated area away from water, moisture, bases, oxidizers/reducing agents where incompatible, heat and unauthorized access. Protect containers from corrosion, leakage and contamination.
UN 1827 Quick Details
Common Hazards of UN 1827
- TOXIC and CORROSIVE fuming metal chloride; inhalation, ingestion or contact may cause severe injury.
- Reacts violently with water or moist air, releasing heat and dense hydrogen chloride fumes.
- Heavy vapors and acid clouds may collect in low or poorly ventilated areas.
- Runoff may spread corrosive tin/metal chloride contamination.
- Fire may produce irritating, corrosive and/or toxic gases.
- Containers may rupture or fail when heated or contaminated with water.
- Avoid water and moisture contact with released product.
Chemical Identity & Physical Properties
Colorless to slightly yellow fuming liquid with a pungent, acrid odor. Fumes heavily in moist air forming dense white clouds of hydrochloric acid vapor.
| Also known as | Tin(IV) chlorideTin tetrachlorideTetrachlorostannaneStannic chloride pentahydrate (anhydrous form) |
| CAS Number | 7646-78-8 |
| Appearance | Colorless to slightly yellow fuming liquid with a pungent, acrid odor. Fumes heavily in moist air forming dense white clouds of hydrochloric acid vapor. |
| Flash Point | Not applicable (non-flammable) |
| Boiling Point | 114C (237F) |
| Vapor Density | 9.0 (much heavier than air) |
| Water Reactivity | Reacts violently with water producing heat and corrosive hydrochloric acid fumes; exothermic reaction can be vigorous |
Fireground Response Guidance — UN 1827
Extinguishing Media
PPE Requirements
Use positive-pressure SCBA for vapor, fume, fire or confined-space exposure. Chemical-resistant gloves, boots, eye/face protection and protective clothing should be selected from SDS; Level A may be needed for close entry or unknown concentrations.
Isolation & Evacuation
First Actions for a UN 1827 Incident
- CALL 911. Then call the emergency response telephone number on the shipping paper, if available.
- Keep unauthorized personnel away.
- Stay upwind, uphill and/or upstream.
- Avoid breathing vapors, fumes, dust, mist or spray and avoid skin or eye contact.
- Keep water and moisture away from released product unless incident command confirms a compatible cooling or control use.
- Do not touch or walk through spilled material unless properly trained and wearing appropriate protective equipment.
- Ventilate closed spaces before entering, but only if properly trained, equipped, monitored and authorized by incident command.
- Isolate the spill or leak area and expand the perimeter if vapor, dust, fire involvement, water reaction or unknown concentration is present.
- Use ERG Guide 137, shipping papers, SDS, air monitoring and incident command for protective actions.
📋 Copy & Share Field Card
UN 1827 — Stannic chloride, anhydrousUse 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.