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问 2,4-D的基本性质和主要用途是什么? 答 2,4-D化学名称为2,4-二氯苯氧乙酸。它是苯氧化合物中活性最高的生长调节剂,活性比植物体内天然存在的吲跺乙酸约大100倍。纯品为带苯酚气味的白色结晶粉,易溶于醇类、丙酮、乙醚等有机溶剂,难溶于水,但其钠盐可直接溶于水。配用时先用少量白酒或酒精溶解(1克结晶粉用20毫升酒精或60度白酒溶解),然后加水稀释至一定浓度。如果使用的是2,4-D钠盐,则可直接加水稀释至所需浓度。
What are the basic properties and main uses of 2,4-D? A. 2,4-D The chemical name is 2,4-Dichlorophenoxyacetic acid. It is the most active growth regulator in phenoxy compounds, about 100 times more active than the naturally occurring indoleacetate in plants. Pure product is white crystalline powder with phenol odor, soluble in organic solvents such as alcohols, acetone and ether, hardly soluble in water, but its sodium salt can be directly dissolved in water. When used with a small amount of liquor or alcohol dissolved (1 g of crystal powder with 20 ml of alcohol or 60 degrees of liquor dissolved), and then diluted with water to a certain concentration. If 2,4-D sodium salt is used, dilute directly with water to the desired concentration.