Product Name: Chlorotoluron
CAS No.: 15545-48-9
EINECS: 239-592-2
Molecular formula: C10H13ClN2O
Molecular mass: 212.68
Density:1.218 g/cm3
Flash point:: 2°C
Melting point: 147-148oC
Boiling point: 367.8oC at 760 mmHg
Content:≥96.0% High performance liquid chromatography
Dangerous goods sign:
Risk terms:R40;R50/53;R63;
Molecular structure:
Physicochemical properties:
The characters of chlorotoluron (15545-48-9) were as follows
1. The pure product is a white crystalline solid with a melting point of 148.1 ºC and a density of 1.40 (20 ºC).
2. Vapor pressure 4.79 μ Pa(20ºC ),5 μ The half-life in soil is about 4 weeks.
3. Solubility (25 ºC): 74mg / L in water, 54G / L in , 519 / L in (dichlo rome thane), 48g / L in ethanol, 3.0g/l in , 0.06g/l in , 24g / L in n-octanol and 21g / L in et hyl acet ate.
4. Stable to heat and ultraviolet. It can decompose slowly in the presence of strong acid and alkali, and DT50 (calculated value) is more than 200 days (pH 7.9); 30ºC).
Application:
Application of chlorotoluron (15545-48-9)
This product is mainly absorbed by the roots of weeds and transmitted upward, and has the effect of leaf contact.
The leaves can also absorb part of it. After entering the plant, the chemicals inhibit the Hill reaction in photosynthesis,
It interferes with the process of electron transfer and makes the leaves chlorotic, unable to produce nutrients and "starve" to death.
Three days after spraying, oats and weeds began to show poisoning symptoms, the green of leaves decreased, and the green of leaf tips and heart leaves lost successively,
The whole plant died of green and dry drying after about 10 days. The effect of green wheat dragon is slow, and it usually takes two weeks to get effect.
It has strong resistance to leaching, and its duration can reach more than 70 days. There was no residue in the soil after 120 days.
It is mainly used to control the wheat fields, such as KanMaiNiang, rigida, Dactylis, Poa pratensis, oxfamia, Agave, rolled ear, Granna, shepherd's purse, Fuchu, etc.
It can also be used in corn, cotton, peanut, soybean, potato, broad bean, cabbage radish and other crop fields to prevent and control annual weeds such as Tang, Dogtail, quinoa, amaranth, etc. It is not effective for the pig, the bramble, the field spinning flower, the sonrytis, the sour mold, the Polygonum and so on.