How to identify potassium sulfate?
How to identify potassium sulfate? Please introduce the identification method potassium sulfate identification method can refer to the following: first, look at the appearance. Potassium sulfate is in the shape of crystals. Second, look at the color. Potassium sulfate is generally white, and some are grayish yellow\ grayish green or light brown. Third, observe the hygroscopicity. Potassium sulfate is basically not hygroscopic, and even if the humidity of the air exceeds 70%, potassium sulfate still retains its original shape (this is the main distinction between potassium chloride and potassium sulfate). Fourth, observe the dissolution of water. The solubility of potassium sulfate was observed by using the method introduced in the urea section. Potassium sulfate can dissolve, but the rate of dissolution is slower than that of potassium chloride, and the amount of dissolution is smaller than that of potassium chloride (this is one of the divisions of potassium chloride and potassium sulfate). Fifth, the color of the flame. By using the method introduced in the potassium chloride section, the flame color of potassium sulfate was observed, and it was found that potassium sulfate had a purple flame peculiar to potassium ion during burning. Measure the pH of the solution. When the pH extensive test paper is inserted into the aqueous solution of (4), the superior and first-class potassium sulfate solution is acidic, and the strip color is red; the qualified potassium sulfate solution is alkaline, and the strip color is blue (this is one of the methods to distinguish potassium chloride from potassium sulfate). Click to get more nitrogen, phosphorus, potassium application techniques click to get more chemical fertilizer application techniques
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What should we pay attention to when using potassium sulfate?
What should we pay attention to when using potassium sulfate? Please give instructions that potassium sulfate is a kind of potash fertilizer with high quality and high potassium content. Potassium sulfate is a white crystal, and the K2O content is generally between 50% and 52%. It is soluble in water, has low hygroscopicity and is not easy to caking, and its physical properties are better than those of potassium chloride. Potassium sulfate is widely used in all fields.
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What problems should be paid attention to when applying potash fertilizer?
What problems should be paid attention to when applying potash fertilizer? What is the effect of applying potash fertilizer? Please introduce the following problems to be paid attention to when applying potash fertilizer: first, pay attention to the soil condition. In general, the effect of potassium fertilizer application was obvious when the soil available potassium was lower than that of 80mg ∕ kg, but little or no application of soil available potassium in 80~120mg ∕ kg. In addition, the speed of sand.
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