Dicamba
Dicamba
CAS No.: 1918-00-9
Molecular Formula: C8H6Cl2O3
Molecular Weight: 221.04
Melting point |
112–116 °C (lit.) |
Boiling point |
316.96 °C (rough estimate) |
Density |
1.57 |
Refractive index |
1.5000 (estimate) |
Flash point |
2 °C |
Storage temperature |
2–8 °C |
Solubility |
Chloroform (slightly), Methanol (slightly) |
Physical form |
Crystals |
pKa |
2.40 ± 0.25 (predicted) |
Color |
White |
Water solubility |
50 g/100 mL |
Symbol (GHS) |
|
Signal word |
Danger |
Hazard codes |
Xn, N, F |
RIDADR |
UN 3077 9/PG 3 |
HS Code |
29189900 |
Dicamba is a benzoic acid derivative used as a broad-spectrum herbicide. It can be used to control annual and perennial rose weeds in grain crops and highlands, and to control brush and bracken in pastures, as well as legumes and cacti. It kills broadleaf weeds both before and after they sprout. Dicamba works by stimulating plant outgrowth, which leads to the depletion of nutrient supplies and plant death. This is based on the nature of Dicamba, which is a synthetic mimic of natural auxin (a plant hormone responsible for stimulating plant growth). After exposure to this type of herbicide, plants develop abnormalities such as leaf epinasty, leaf abscission, and growth inhibition of roots and shoots. Overall, the effects of auxinic herbicides can be divided into three consecutive phases: first, stimulation of abnormal growth and gene expression; second, inhibition of growth and physiological responses, such as stomatal closure; and third, senescence and cell death.
Uses:
Selective, systemic pre-emergence and post-emergence herbicide used to control both annual and perennial broad-leaved weeds, chickweed, mayweed, and bindweed in cereals and other related crops.
Dicamba is mainly used as an herbicide to control weeds, dock, bracken, and brush. It is frequently applied in combination with other herbicides, including atrazine, glyphosate, imazethapyr, ioxynil, and mecoprop.
