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| Home > Products > Herbicide |
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| Product Name |
2,4-D series |
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| Function |
Herbicide |
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| Chemical Name |
(2,4-dichlorophenoxy)acetic acid |
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| Empirical Formula |
C8H6Cl2O3 |
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| CAS Number |
94-75-7 |
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| Molecular Weight |
221.04 |
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Chemical Formula of
Active Ingredient |
 |
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| Quality standard |
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Item |
Index |
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2,4-D acid content %, (w/w) ≥ |
98.0 |
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Appearance |
White powder |
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Water %, ≤ |
1.5 |
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Free phenols %, ≤ |
0.3 |
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Triethanolamine insolubles %, ≤ |
0.5 | |
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| Toxicology |
2, 4-D acid Acute Oral LD50 (rat): 639 mg/kg
2, 4-D acid Acute Dermal LD50 (rabbit):>2000 mg/kg
2, 4-D acid rat inhalation LC50: > 1.79 mg/l
2, 4-D acid Acute Skin Irritation(rabbit): moderate skin irritant
2, 4-D acid Acute Eye Irritation(rabbit): severe eye irritant
2, 4-D acid Skin Sensitization (guinea pig): not a dermal sensitizer
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| Applications |
Selective systemic herbicide. Salts are readily absorbed by the roots, whilst esters are readily absorbed by the foliage. Translocation occurs, with accumulation principally at the meristematic regions of shoots and roots. Acts as a growth inhibitor. Post-emergence control of annual and perennial broad-leaved weeds in cereals, maize, sorghum, grassland, established turf, grass seed crops, orchards (pome fruit and stone fruit), cranberries, asparagus, sugar cane, rice, forestry, and on non-crop land (including areas adjacent to water), at 0.28-2.3 kg/ha. Control of broad-leaved aquatic weeds. The isopropyl ester can also be used as a plant growth regulator to prevent premature fruit fall in citrus fruit. |
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| Stability |
2,4-D is a strong acid, and forms water-soluble salts with alkali metals and amines. Hard water leads to precipitation of the calcium and magnesium salts, but a sequestering agent is included in formulations to prevent this. Photolytic DT50 (simulated sunlight) 7.5 d. |
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| Pack |
25 kg/bag, 200 L/drum etc. |
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