Product Identification

Product Name

2,4-D LV6

Synonyms

2-(2,4-Dichlorophenoxy)acetic acid
2,4-D
Fernimine
Hedonal
Vergemaster

CAS

94-75-7

Formula

C8H6Cl2O3

Molecular Weight

221.04

EINECS

202-361-1

RTECS

AG6825000

RTECS Class

Agricultural Chemical and Pesticide; Tumorigen; Mutagen; Reproductive Effector; Human Data; Primary Irritant

Merck

13,2825

Beilstein/Gmelin

1214242

Beilstein Reference

4-06-00-00908

EC Index Number

607-039-00-8

EC Class

Harmful; Irritant; Sensitising; Dangerous for the Environment

Physical and Chemical Properties

Appearance

White to yellow, crystalline powder, odorless when pure, may have a slight phenolic odor due to impurities.

Solubility in water

Very soluble

Melting Point

137 - 139

Boiling Point

346

Vapor Pressure

2E-5 (25 C)

Density

1.563 g/cm3 (20 C)

pKa/pKb

2.98 (pKa)

Partition Coefficient

2.81

Heat Of Vaporization

62.2 kJ/mol

Heat Of Combustion

-3915 kJ/mol

Usage

It is registered in the usa as a herbicide for control of broadleaf plants & as a plant-growth regulator.

Vapor Density

7.63

Saturation Concentration

526 ppm (0.05%) at 160 C (calculated)

Odor threshold

3.13 mg/kg

First Aid Measures

Ingestion

Never give anything by mouth to an unconscious person. Get medical aid. Do NOT induce vomiting. If conscious and alert, rinse mouth and drink 2-4 cupfuls of milk or water.

Inhalation

Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid. DO NOT use mouth-to-mouth respiration.

Skin

Get medical aid. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse.

Eyes

Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.

Handling and Storage

Storage

Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.

Handling

Minimize dust generation and accumulation. Avoid contact with eyes, skin, and clothing. Keep container tightly closed. Avoid ingestion and inhalation. Use with adequate ventilation. Wash clothing before reuse.

Hazards Identification

Inhalation

Causes respiratory tract irritation. May cause liver and kidney damage. Can produce delayed pulmonary edema.

Skin

Causes skin irritation. May be harmful if absorbed through the skin.

Eyes

Causes eye irritation. May cause chemical conjunctivitis.

Ingestion

Harmful if swallowed. May cause gastrointestinal irritation with nausea, vomiting and diarrhea. May cause liver and kidney damage. Human fatalities have been reported from acute poisoning.

Hazards

Containers may explode when heated.

EC Risk Phrase

R 22 37 41 43 52/53

EC Safety Phrase

S 24/25 26 36/37/39 46 61

UN (DOT)

2765

Exposure Controls/Personal Protection

Personal Protection

Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166. Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to prevent skin exposure.

Respirators

A respiratory protection program that meets OSHA's 29 CFR 1910.134 and ANSI Z88.2 requirements or European Standard EN 149 must be followed whenever workplace conditions warrant a respirator's use.

Exposure Effects

May cause liver and kidney damage. Effects may be delayed.

Exposure limit(s)

TLV: ppm; 10 mg/m3 (as TWA) (ACGIH 1993-1994). OSHA PEL: TWA 10 mg/m3 NIOSH REL: TWA 10 mg/m3 NIOSH IDLH: 100 mg/m3

Poison Class

3

Fire Fighting Measures

Flash Point

163

Fire Fighting

Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. Combustible material; may burn but does not ignite readily. To extinguish fire use water spray, dry chemical, carbon dioxide, or appropriate foam.

Fire Potential

Nonflammable.

Accidental Release Measures

Small spills/leaks

Clean up spills immediately, using the appropriate protective equipment. Sweep up, then place into a suitable container for disposal. Avoid generating dusty conditions. Provide ventilation.

Stability and Reactivity

Stability

Stable at room temperature in closed containers under normal storage and handling conditions.

Incompatibilities

Strong oxidizing agents, strong acids, strong bases.

Decomposition

Hydrogen chloride, carbon monoxide, irritating and toxic fumes and gases, carbon dioxide.

Combustion Products

Toxic and irritating hydrogen chloride or phosgene gases may form.

Transport Information

UN Number

2765

Hazard Class

3.2

Packing Group

III

HS Code

2918 90 90