果树常用的防病药波尔多液,主要原料是天蓝色结晶体硫酸铜(蓝矾);当前市场上有人掺入淡绿色结晶体硫酸亚铁(黑矾),混合后粉碎冒充硫酸铜出售,致使不少果农高价买假药,上当受骗,遭受经济损失。下面介绍一种简易鉴别方法: 捏取商品“硫酸铜”碎末或一小块约1克,放入一杯茶水中,在10秒钟内,茶水不 Bordeaux mixture commonly used as a preventive medicine for fruit trees, the main raw material is sky blue crystal copper sulfate (blue alum); some people in the market are mixed with light green crystal ferrous sulfate (black alum), after mixing and smashing as copper sulfate for sale, Farmers to buy fake drugs at high prices, deceived, suffered economic losses. Here’s a simple identification method: pinch the goods “copper sulfate” pieces or a small piece of about 1 grams, into a cup of tea, in 10 seconds, the tea is not