2,4-D, alkanolamine salts

buff-colored powder. Odorless or with slight, characteristic odor.

Registry Numbers and Inventories.

Solubility in water

Hazards and Protection.
Keep in a cool, dry, dark location in a tightly sealed container or cylinder. Keep away from incompatible materials, ignition sources and untrained individuals. Secure and label area. Protect containers/cylinders from physical damage.
All chemicals should be considered hazardous. Avoid direct physical contact. Use appropriate, approved safety equipment. Untrained individuals should not handle this chemical or its container. Handling should occur in a chemical fume hood.
Wear appropriate clothing to prevent any reasonable probability of skin contact. Wear eye protection to prevent any possibility of eye contact.
Wear positive pressure self-contained breathing apparatus (SCBA).
Small spills/leaks
Do not touch damaged containers or spilled material unless wearing appropriate protective clothing. Stop leak if you can do it without risk. Cover with plastic sheet to prevent spreading. Absorb or cover with dry earth, sand or other non-combustible material and transfer to containers. DO NOT GET WATER INSIDE CONTAINERS.
Avoid exposure to heat, air, and moisture; any exposure will cause equilin content to lose potency.
Strong oxidizing acids may cause a vigorous reaction that is sufficiently exothermic to ignite the reaction products.

Fire fighting
U.S. Coast guard recommendations-extinguish with dry chemicals, foam, or carbon dioxide. Water may be ineffective. Use water to cool exposed containers. (Cghcd* 78/uscg) DOT recommendations (same as for 2,4-d acid)-small fires: dry chemical, carbon dioxide, waterspray, or foam. Large fires: water spray, fog, or foam. Fight fire from maximum distance. If you can do so without risk, move container from fire area. bureau of explosives recommendations-use extinguishing agent suitable for type of surrounding fire.).
Fire potential
Combustible material: may burn but does not ignite readily.
Containers may explode when heated.
Combustion products
Fire may produce irritating, corrosive and/or toxic gases.

Exposure limit(s)
OSHA: PEL (8 h TWA): 10 mg/m3.
Exposure effects
Low dose exposures - vertigo, headache, malaise, and paresthesias may occur depending on the specific compound involved. High dose exposures - muscle twitching, spasms, profound weakness, polyneuritis, and unconsciousness may occur depending on the specific compound involved. Idiosyncratic reactions - peripheral neuropathies 2,4-D and 2,4,5-T have caused adverse reproductive effects in experimental animals. Allegations of human birth defects due to these compounds have not been confirmed.
Nausea, vomiting, and diarrhea have been reported. Necrosis of the gastrointestinal mucosa has been reported.
Ingestion of large amounts may cause bradypnea, respiratory failure, hyperventilation, or pulmonary edema.
Direct contact may cause skin irritation.
See Skin.

First aid
Treat ingestions of greater than 40 milligrams per kilogram with decontamination of the stomach if within 4 hours of ingestion. Administer charcoal as a slurry.
Move victim to fresh air. Monitor for respiratory distress. If cough or difficulty breathing develops, evaluate for respiratory tract irritation, pneumonitis or bronchits. Administer oxygen and assist ventilation as required.
Remove contaminated clothing and jewelry. Wash the skin, including hair and nails, vigorously. Discard contaminated clothing. Treat irritation or burns with standard topical therapy.
Irrigate exposed eyes with copious amounts of tepid water for at least 15 minutes. If irritation, pain, swelling, tearing, or sensitivity to light persist, the patient should be seen in a health care facility.

UN number
Response guide
Hazard class