2,4-Dichlorophenoxyacetic acid

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2,4-Dichlorophenoxyacetic acid 2,4-Dichlorophenoxyacetic acid
2,4-Dichlorophenoxyacetic acid
2,4-Dichlorophenoxyacetic acid (2,4-D) is a systemic herbicide used worldwide for weed control. It is one of the oldest and most cost-effective weed killers.
Product Introduction

2,4-Dichlorophenoxyacetic acid (2,4-D) is a systemic herbicide used worldwide for weed control. It is one of the oldest and most cost-effective weed killers.

CAS No.: 94-75-7

Synonyms: 2,4-D; 2,4-D ACID; 2,4-dichlorophenoxyacetic acid

Molecular Formula: C8H6Cl2O3

Molecular Weight: 221.04

2,4-Dichlorophenoxyacetic Acid Properties

Melting point

136-140 °C (lit.)

Boiling point

160 °C (0.4 mmHg)

Density

1.563

Vapour pressure

0.4 mm Hg (160 °C)

Refractive index

1.5000 (estimate)

Flash point

160 °C / 0.4 mm

Storage temperature

2-8 °C

Solubility

Soluble in organic solvents (ethanol, acetone, dioxane)

pKa

pK1: 2.64 (25 °C)

Form

Crystalline

Color

Off-white to tan

pH range

Acidic

Odour threshold

3.13 ppm

Water solubility

Slightly soluble. Decomposes. 0.0890 g/100 mL

Stability

Stable, but moisture-sensitive and may be light-sensitive. Incompatible with strong oxidizing agents; corrodes many metals. Decomposes in water.
Risk and Safety Statements

Symbol (GHS)

2,4-Dichlorophenoxyacetic acid 2,4-Dichlorophenoxyacetic acid 2,4-Dichlorophenoxyacetic acid
GHS05, GHS07, GHS09

Signal word

Danger

Hazard codes

Xn, Xi, T, F

RIDADR

UN 3077 9/PG 3

Autoignition temperature

> 180 °C

TSCA

Yes

Hazard class

6.1

Packing group

III

HS Code

29189090
2,4-Dichlorophenoxyacetic Acid: Chemical Properties and Uses

As one of the most cost-effective and long-standing weed control agents, 2,4-dichlorophenoxyacetic acid (commonly referred to as 2,4-D) is a systemic herbicide widely used around the world. It provides selective control of various terrestrial and aquatic broadleaf weeds without significantly affecting most grasses, including cereals, lawn turf, and grasslands. Today, 2,4-D is widely used to manage unwanted vegetation in a range of applications. In forestry, it is used for stump treatment and trunk injection, and for selective brush control in conifer forests. It is also used to control weeds and brush along roadways, railways, and power lines where they may damage equipment or interfere with safe operation. In addition, it is applied for the control of aquatic weeds to support safe boating, fishing, and swimming, or to protect hydroelectric equipment. It is further used by government for controlling the spread of invasive, noxious, and non-native weed species, as well as for managing various poisonous weeds, such as poison ivy and poison oak. In addition to forestry applications, 2,4-D may be used as a supplement in plant cell culture media in laboratories as a dedifferentiation hormone.

Our supply includes:
2,4-D 96% TC
2,4-D 98% TC
2,4-D 2.4% + Glyphosate 30% SL
2,4-D 240 g/L + Picloram 64 g/L SL
Glufosinate-Ammonium 10% + 2,4-D 2% SL
Dicamba 10.3% + 2,4-D 29.7% SL
Bentazone 40% + 2,4-D 5% ME

2,4-D 0.3% + 6-benzylamino-purine 3% ME
2,4-D dimethylamine salt 600 g/L SL
2,4-D dimethylamine salt 720 g/L SL
2,4-D dimethylamine salt 860 g/L SL
2,4-D-ethylhexyl 96% TC
2,4-D-ethylhexyl 50% EC
2,4-D-ethylhexyl 87.5%




2,4-D-ethylhexyl 453 g/L + Florasulam 6 g/L SE
2,4-D-ethylhexyl 200 g/L + Propanil 360 g/L EC
2,4-D Na 96% TC