UN 2507 — Chloroplatinic acid, solid
Placard: Corrosive. ERG Guide 154. Training/quick-reference only — use current ERG + SOP/SOG for incident-specific actions.
UN 2507 At a Glance
UN 2507 (Chloroplatinic acid, solid) is listed as DOT Class 8 Corrosive and is assigned to ERG Guide 154. Use this page to review placard data, common hazards, PPE notes, isolation context, first actions, and related UN numbers.
UN 2507 is Chloroplatinic acid, solid, a corrosive toxic platinum acid salt assigned to ERG Guide 154. Dust, acidic solution and metal-contaminated runoff are key hazards.
Hazard overview: CORROSIVE and toxic platinum acid salt; dust or solution can burn eyes, skin and respiratory tissue. Hygroscopic solid dissolves in water to form acidic, metal-containing solution. Non-combustible, but heating may release hydrogen chloride, chlorine-containing fumes and metal residues.
Response guidance: For UN 2507, isolate the area, avoid skin contact and use SCBA where dust, vapor, mist or fire is present. Contain toxic/corrosive runoff and verify product controls with SDS and ERG 154.
Firefighter training notes: Training for UN 2507 should emphasize toxic/corrosive exposure routes, skin absorption, SCBA use, decontamination, runoff containment and SDS verification. Use ERG 154, SDS and local SOP.
Regulatory context: Chloroplatinic acid, solid is regulated as a hazardous material for transport and emergency response. Storage, exposure, spill reporting, waste and fire-code duties depend on quantity, concentration and jurisdiction; verify shipping papers, SDS and local authority requirements.
Storage & handling: Chloroplatinic acid, solid should be stored dry in tightly closed compatible containers with secondary containment, restricted access and segregation from bases, metals where incompatible and moisture-sensitive materials.
UN 2507 Quick Details
Common Hazards of UN 2507
- CORROSIVE and toxic platinum acid salt; dust or solution can burn eyes, skin and respiratory tissue.
- Hygroscopic solid dissolves in water to form acidic, metal-containing solution.
- Non-combustible, but heating may release hydrogen chloride, chlorine-containing fumes and metal residues.
- Contact with metals may generate flammable hydrogen under acidic conditions.
- Runoff may be acidic, corrosive and contaminated with platinum salts.
- Dust or solution may cause sensitization or allergic-type reactions in susceptible people.
- Avoid dust generation, skin contact and uncontrolled dilution runoff.
Chemical Identity & Physical Properties
Orange-yellow to brownish-red crystalline solid. Hygroscopic (absorbs moisture from air). No significant odor when dry.
| Also known as | Hexachloroplatinic acidPlatinic chloridePlatinum(IV) chloride hexahydrateHydrogen hexachloroplatinate(IV) |
| CAS Number | 16941-12-1 |
| Appearance | Orange-yellow to brownish-red crystalline solid. Hygroscopic (absorbs moisture from air). No significant odor when dry. |
| Flash Point | Not applicable (non-combustible inorganic solid) |
| Boiling Point | Not applicable (decomposes before boiling) |
| Vapor Density | Not applicable (solid) |
| Water Reactivity | Highly soluble in water, forming acidic solution; no violent reaction but generates heat |
Fireground Response Guidance — UN 2507
Extinguishing Media
PPE Requirements
Use positive-pressure SCBA for dust, vapor, mist, fire or confined-space exposure. Wear chemical-resistant gloves, boots, eye/face protection and protective clothing.
Isolation & Evacuation
First Actions for a UN 2507 Incident
- Call 911 and the emergency response number on the shipping paper, if available.
- Keep unauthorized personnel away and establish incident command.
- Stay upwind, uphill and upstream.
- Avoid breathing vapor, dust, mist, smoke or fumes and avoid skin or eye contact.
- Do not touch damaged containers or spilled material without proper training and PPE.
- Ventilate confined spaces only after monitoring and only if properly trained and equipped.
- Use ERG Guide 154, SDS, shipping papers and monitoring to set isolation, evacuation and entry decisions.
📋 Copy & Share Field Card
UN 2507 — Chloroplatinic acid, solidUse 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.