2,4-D

CAS RN:94-75-7

DOT Emergency Guidelines

Go to Guide 131
Go to Guide 153

GUIDE 131
FLAMMABLE LIQUIDS - TOXIC
POTENTIAL HAZARDS
HEALTH
· TOXIC; may be fatal if inhaled, ingested or absorbed through skin.
· Inhalation or contact with some of these materials will irritate or burn skin and eyes.
· Fire will produce irritating, corrosive and/or toxic gases.
· Vapors may cause dizziness or suffocation.
· Runoff from fire control or dilution water may cause pollution.
FIRE OR EXPLOSION
· HIGHLY FLAMMABLE: Will be easily ignited by heat, sparks or flames.
· Vapors may form explosive mixtures with air.
· Vapors may travel to source of ignition and flash back.
· Most vapors are heavier than air. They will spread along ground and collect in low or confined areas (sewers, basements, tanks).
· Vapor explosion and poison hazard indoors, outdoors or in sewers.
· Those substances designated with a (P) may polymerize explosively when heated or involved in a fire.
· Runoff to sewer may create fire or explosion hazard.
· Containers may explode when heated.
· Many liquids are lighter than water.
PUBLIC SAFETY
· CALL EMERGENCY RESPONSE Telephone Number on Shipping Paper first. If Shipping Paper not available or no answer, refer to appropriate telephone number listed on the inside back cover.
· As an immediate precautionary measure, isolate spill or leak area for at least 50 meters (150 feet) in all directions.
· Keep unauthorized personnel away.
· Stay upwind, uphill and/or upstream.
· Ventilate closed spaces before entering.
PROTECTIVE CLOTHING
· Wear positive pressure self-contained breathing apparatus (SCBA).
· Wear chemical protective clothing that is specifically recommended by the manufacturer. It may provide little or no thermal protection.
· Structural firefighters' protective clothing provides limited protection in fire situations ONLY; it is not effective in spill situations where direct contact with the substance is possible.
EVACUATION
Spill
· See the Initial Isolation and Protective Action Distances for highlighted materials. For non-highlighted materials, increase, in the downwind direction, as necessary, the isolation distance shown under "PUBLIC SAFETY".
Fire
· If tank, rail car or tank truck is involved in a fire, ISOLATE for 800 meters (1/2 mile) in all directions; also, consider initial evacuation for 800 meters (1/2 mile) in all directions.
In Canada, an Emergency Response Assistance Plan (ERAP) may be required for this product. Please consult the shipping document and/or the Canada and United States National Response Centers reference document.
EMERGENCY RESPONSE
FIRE
CAUTION: All these products have a very low flash point: Use of water spray when fighting fire may be inefficient.
Small Fire
· Dry chemical, CO2, water spray or alcohol-resistant foam.
Large Fire
· Water spray, fog or alcohol-resistant foam.
· Move containers from fire area if you can do it without risk.
· Dike fire-control water for later disposal; do not scatter the material.
· Use water spray or fog; do not use straight streams.
Fire involving Tanks or Car/Trailer Loads
· Fight fire from maximum distance or use unmanned hose holders or monitor nozzles.
· Cool containers with flooding quantities of water until well after fire is out.
· Withdraw immediately in case of rising sound from venting safety devices or discoloration of tank.
· ALWAYS stay away from tanks engulfed in fire.
· For massive fire, use unmanned hose holders or monitor nozzles; if this is impossible, withdraw from area and let fire burn.
SPILL OR LEAK
· Fully encapsulating, vapor-protective clothing should be worn for spills and leaks with no fire.
· ELIMINATE all ignition sources (no smoking, flares, sparks or flames in immediate area).
· All equipment used when handling the product must be grounded.
· Do not touch or walk through spilled material.
· Stop leak if you can do it without risk.
· Prevent entry into waterways, sewers, basements or confined areas.
· A vapor-suppressing foam may be used to reduce vapors.
Small Spill
· Absorb with earth, sand or other non-combustible material and transfer to containers for later disposal.
· Use clean, non-sparking tools to collect absorbed material.
Large Spill
· Dike far ahead of liquid spill for later disposal.
· Water spray may reduce vapor, but may not prevent ignition in closed spaces.
FIRST AID
· Ensure that medical personnel are aware of the material(s) involved and take precautions to protect themselves.
· Move victim to fresh air.
· Call 911 or emergency medical service.
· Give artificial respiration if victim is not breathing.
· Do not use mouth-to-mouth method if victim ingested or inhaled the substance; give artificial respiration with the aid of a pocket mask equipped with a one-way valve or other proper respiratory medical device.
· Administer oxygen if breathing is difficult.
· Remove and isolate contaminated clothing and shoes.
· In case of contact with substance, immediately flush skin or eyes with running water for at least 20 minutes.
· Wash skin with soap and water.
· In case of burns, immediately cool affected skin for as long as possible with cold water. Do not remove clothing if adhering to skin.
· Keep victim calm and warm.
· Effects of exposure (inhalation, ingestion or skin contact) to substance may be delayed.
ERG 2016

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GUIDE 153
SUBSTANCES - TOXIC and/or CORROSIVE (Combustible)
POTENTIAL HAZARDS
HEALTH
· TOXIC; inhalation, ingestion or skin contact with material may cause severe injury or death.
· Contact with molten substance may cause severe burns to skin and eyes.
· Avoid any skin contact.
· Effects of contact or inhalation may be delayed.
· Fire may produce irritating, corrosive and/or toxic gases.
· Runoff from fire control or dilution water may be corrosive and/or toxic and cause pollution.
FIRE OR EXPLOSION
· Combustible material: may burn but does not ignite readily.
· When heated, vapors may form explosive mixtures with air: indoors, outdoors and sewers explosion hazards.
· Those substances designated with a (P) may polymerize explosively when heated or involved in a fire.
· Contact with metals may evolve flammable hydrogen gas.
· Containers may explode when heated.
· Runoff may pollute waterways.
· Substance may be transported in a molten form.
PUBLIC SAFETY
· CALL EMERGENCY RESPONSE Telephone Number on Shipping Paper first. If Shipping Paper not available or no answer, refer to appropriate telephone number listed on the inside back cover.
· As an immediate precautionary measure, isolate spill or leak area in all directions for at least 50 meters (150 feet) for liquids and at least 25 meters (75 feet) for solids.
· Keep unauthorized personnel away.
· Stay upwind, uphill and/or upstream.
· Ventilate enclosed areas.
PROTECTIVE CLOTHING
· Wear positive pressure self-contained breathing apparatus (SCBA).
· Wear chemical protective clothing that is specifically recommended by the manufacturer. It may provide little or no thermal protection.
· Structural firefighters' protective clothing provides limited protection in fire situations ONLY; it is not effective in spill situations where direct contact with the substance is possible.
EVACUATION
Spill
· See the Initial Isolation and Protective Action Distances for highlighted materials. For non-highlighted materials, increase, in the downwind direction, as necessary, the isolation distance shown under "PUBLIC SAFETY".
Fire
· If tank, rail car or tank truck is involved in a fire, ISOLATE for 800 meters (1/2 mile) in all directions; also, consider initial evacuation for 800 meters (1/2 mile) in all directions.
In Canada, an Emergency Response Assistance Plan (ERAP) may be required for this product. Please consult the shipping document and/or the Canada and United States National Response Centers reference document.
EMERGENCY RESPONSE
FIRE
Small Fire
· Dry chemical, CO2 or water spray.
Large Fire
· Dry chemical, CO2, alcohol-resistant foam or water spray.
· Move containers from fire area if you can do it without risk.
· Dike fire-control water for later disposal; do not scatter the material.
Fire involving Tanks or Car/Trailer Loads
· Fight fire from maximum distance or use unmanned hose holders or monitor nozzles.
· Do not get water inside containers.
· Cool containers with flooding quantities of water until well after fire is out.
· Withdraw immediately in case of rising sound from venting safety devices or discoloration of tank.
· ALWAYS stay away from tanks engulfed in fire.
SPILL OR LEAK
· ELIMINATE all ignition sources (no smoking, flares, sparks or flames in immediate area).
· Do not touch damaged containers or spilled material unless wearing appropriate protective clothing.
· Stop leak if you can do it without risk.
· Prevent entry into waterways, sewers, basements or confined areas.
· Absorb or cover with dry earth, sand or other non-combustible material and transfer to containers.
· DO NOT GET WATER INSIDE CONTAINERS.
FIRST AID
· Ensure that medical personnel are aware of the material(s) involved and take precautions to protect themselves.
· Move victim to fresh air.
· Call 911 or emergency medical service.
· Give artificial respiration if victim is not breathing.
· Do not use mouth-to-mouth method if victim ingested or inhaled the substance; give artificial respiration with the aid of a pocket mask equipped with a one-way valve or other proper respiratory medical device.
· Administer oxygen if breathing is difficult.
· Remove and isolate contaminated clothing and shoes.
· In case of contact with substance, immediately flush skin or eyes with running water for at least 20 minutes.
· For minor skin contact, avoid spreading material on unaffected skin.
· Keep victim calm and warm.
· Effects of exposure (inhalation, ingestion or skin contact) to substance may be delayed.
ERG 2016

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Find more information on this substance at: Hazardous Substances Data Bank , TOXMAP , TOXNET , PubMed