☣️ UN 1712 • CLASS 6
UN 1712 — Zinc arsenate and zinc arsenite mixture
Placard: Toxic. ERG Guide 151. Training/quick-reference only — use current ERG + SOP/SOG for incident-specific actions.
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⚠️ 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.
Zinc arsenate and zinc arsenite mixture is a highly toxic substance that can cause fatal injury if inhaled, ingested, or absorbed through the skin. It is essential to handle this substance with extreme care and follow proper emergency procedures.
Hazard overview: Zinc arsenate and zinc arsenite mixture is highly toxic and can cause fatal injury if inhaled, ingested, or absorbed through the skin.
Response guidance: In case of an emergency, evacuate the area immediately and provide fresh air. If inhaled, remove the person to fresh air and seek medical attention.
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UN 1712 Quick Details
UN 1712
Product name: Zinc arsenate and zinc arsenite mixture
DOT Class: 6
Placard type: Toxic
ERG Guide: 151 (check current ERG)
Initial isolation: ERG 151: isolate spill/leak area immediately for at least 25 meters in all directions; evacuate downwind 100 meters if powder released
Common Hazards of UN 1712
- Highly toxic, may be fatal if inhaled, ingested or absorbed through skin.
- Avoid any skin contact.
- Fire may produce irritating, corrosive and/or toxic gases.
- Runoff from fire control or dilution water may be corrosive and/or toxic and cause environmental
- Non-combustible, substance itself does not burn but may decompose upon heating to produce corrosive
- Containers may explode when heated.
- Runoff may pollute waterways.
Chemical Identity & Physical Properties
Zinc arsenate and zinc arsenite mixture is a white to grayish-white odorless powder or granular solid at room temperature.
| Also known as | Zinc arsenateZinc arseniteZinc orthoarsenateArsenous acid zinc saltZinc arsenate/arsenite blend |
| Appearance | White to grayish-white odorless powder or granular solid at room temperature. May appear as a mixed crystalline material. |
| Flash Point | Not applicable (non-combustible inorganic solid) |
| Boiling Point | Not applicable (decomposes before boiling) |
| Vapor Density | Not applicable (solid material) |
| Water Reactivity | Slightly soluble in water; no violent reaction but may slowly release toxic arsenic compounds |
Chemical details are general reference only. Always verify with current SDS, ERG, and SOP/SOG.
Fireground Response Guidance — UN 1712
Extinguishing Media
Dry chemical, sand, or earth for surrounding fires; water spray for cooling containers only
PPE Requirements
⚠️ Level B minimum with full-face SCBA required; chemical-resistant suit, gloves, and boots mandatory to prevent skin absorption
Wear Level B minimum personal protective equipment (PPE) with a full-face self-contained breathing apparatus (SCBA) required, chemical-resistant suit, gloves, and boots to prevent skin absorption.
Isolation & Evacuation
ERG 151: isolate spill/leak area immediately for at least 25 meters in all directions; evacuate downwind 100 meters if powder released
Always confirm protective actions with the current edition of the Emergency Response Guidebook (ERG Guide 151).
First Actions for a UN 1712 Incident
- Keep unauthorized personnel away.
- Stay upwind, uphill and/or upstream.
- Isolate spill or leak area in all directions for at least 50 meters (150 feet) for liquids and at least 25 meters
- For highlighted materials: see Table 1 - Initial Isolation and Protective Action Distances.
- For non-highlighted materials: increase the immediate precautionary measure distance, in the downwind
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📋 Copy & Share Field Card
UN 1712 — Zinc arsenate and zinc arsenite mixtureHAZMAT RADIO NOTE — UN 1712
Product: Zinc arsenate and zinc arsenite mixture
Class 6 / Toxic / ERG 151
PPE: Level B minimum with full-face SCBA required; chemical-resistant suit, gloves, and boots mandatory to prevent skin absorption
ISOLATION: ERG 151: isolate spill/leak area immediately for at least 25 meters in all directions; evacuate downwind 100 meters if powder released
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 1712 — Zinc arsenate and zinc arsenite mixture
Class: 6 | Placard: Toxic | ERG Guide: 151
Appearance: White to grayish-white odorless powder or granular solid at room temperature. May appear as a mixed crystalline material.
Water Reactivity: Slightly soluble in water; no violent reaction but may slowly release toxic arsenic compounds
Extinguishing: Dry chemical, sand, or earth for surrounding fires; water spray for cooling containers only
PPE: Level B minimum with full-face SCBA required; chemical-resistant suit, gloves, and boots mandatory to prevent skin absorption
Isolation: ERG 151: isolate spill/leak area immediately for at least 25 meters in all directions; evacuate downwind 100 meters if powder released
— Key Hazards —
• Highly toxic, may be fatal if inhaled, ingested or absorbed through skin.
• Avoid any skin contact.
• Fire may produce irritating, corrosive and/or toxic gases.
— First Actions —
• Keep unauthorized personnel away.
• Stay upwind, uphill and/or upstream.
• Isolate spill or leak area in all directions for at least 50 meters (150 feet) for liquids and at least 25 meters
• For highlighted materials: see Table 1 - Initial Isolation and Protective Action Distances.
SOURCE: allfirefighter.com/hazmat/un/1712 | Always use current ERG + SOP/SOGIC BRIEFING
Use for: Incident command briefing, staging area whiteboard, or pre-entry team brief.
UN1712 Zinc arsenate and zinc arsenite mixture Cls6 ERG151 | allfirefighter.com/hazmat/un/1712SMS / 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/zinc-arsenate-and-zinc-un-1712
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Frequently Asked Questions about UN 1712
No, Zinc arsenate and zinc arsenite mixture is not flammable.
Zinc arsenate and zinc arsenite mixture is highly toxic and can cause fatal injury if inhaled, ingested, or absorbed through the skin.
Isolate the spill area immediately for at least 25 meters in all directions and evacuate downwind 100 meters if powder released.
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.