2,4 Dichlorophenoxyacetic acid CAS:94 75 7 Purity:98% Industrial Grade

Product Overview

Description

----2,4-Dichlorophenoxyacetic acid----

2, 4-dichlorophenoxyacetic acid (2,4-D), is an organic compound with the chemical formula C8H6Cl2O3, used mainly as herbicides and plant growth agents.

Mainly used as herbicide and plant growth agent. When the high concentration is above 500ppm, it can be used for stem and leaf treatment. It can prevent broad leaf weeds such as chenopodium, amaranth and germination gramineous weeds in wheat, rice, corn, sugarcane and other crop fields. Endoscopicity. From roots, stems, leaves into the plant body, degradation is slow, so it can accumulate a certain concentration, thus interfering with the hormone balance in the plant body, destroy nucleic acid and protein metabolism, promote or inhibit the growth of some organs, so that weeds stem and leaf distortion, stem base thickening, swelling and cracking. Gramineous crops have strong tolerance at the 4 ~ 5 leaf stage, which is suitable for spraying. Sometimes it is also used for soil treatment of maize after sowing and before seedling to control a variety of monocotyledon and dicotyledon weeds. Mixed with herbicides such as atrazine and pratazine, or with acidic fertilizers such as ammonium sulfate, can increase the effect of killing grass. When the temperature was 20-28 ℃, the efficacy increased with the increase of temperature, but decreased below 20℃. 2,4-D butyl ester is volatile at high temperature, easy to diffuse and drift, harmful to nearby dicotyledonous crops and trees, should be used with caution. 2,4-D adsorption is strong, used sprayer must be fully washed, so as not to cotton, vegetables and other sensitive crops by the residual trace agents harm, but safe for people and animals.

Items	Specifications
English alias	For 2,4-D u-5043 ipaner Estone dicopur Ferxone amoxone dormone dicotox bh 2,4-d weed tox crotilin decamine agrotect weedtrol Fernimine 2,4-d lv6 Fernoxone envert dt netagrone pennamine weedar 64a Foredex 75 chloroxone 2,4-D Acid helena 2,4-d b-selektonon Farmon 2,4-d emulsamine bk Esterone four weedone-2,4-dp dichloro(phenoxy)acetic acid 2,4-Dichlorophenoxyacetic acid 2,4-Dichlorophenoxy Acetic Acid
CAS	94-75-7
chemical formula	C8H6Cl2O3
molecular weight	221.04
density	1.563
melting point	136-140 °C (lit.)
boiling point	160 °C (0.4 mmHg)
flash(ing) point	160°C/0.4mm
water solubility	Slightly soluble. Decomposes. 0.0890 g/100 mL
vapour pressure	0.4 mm Hg ( 160 °C)
solubility	Soluble in organic solvents (ethanol, acetone, dioxane)
refractive index	1.5000 (estimate)
acidity coefficient	pK1:2.64 (25°C)
storage condition	2-8°C
stability	Stable, but moisture-sensitive and may be light-sensitive. Incompatible with strong oxidizing agents, corrodes many metals. Decomposes in water.
appearance	crystalline
colour	off-white to tan
exposure limit	NIOSH REL: TWA 10 mg/m3, IDLH 100 mg/m3; OSHA PEL: TWA10 mg/m3; ACGIH TLV: TWA 10 mg/m3.
physico-chemical property	White crystal. Melting point 138℃, boiling point 160℃(53Pa). Soluble in ethanol, acetone, ether and benzene and other organic solvents, insoluble in water. Rat oral LD50375mg/kg.