Potassium sulfate is a salt of sulfate ions and potassium ions, usually under the conditions of colorless or white crystals, particles or powder. No smell, bitter taste. Hard. Chemical nature is not active. Stable in the air. Density of 2.66g / cm3. The temperature of 1069 ° C. The solution was neutral and the pH was about 7.1 g in 8.3 ml of water, 4 ml of boiling water, 75 ml of glycerol and insoluble in ethanol at room temperature.
Potassium sulfate is the basic raw material for the production of various potassium salts such as potassium carbonate, potassium persulfate and the like. The glass industry is used as a cleaning agent. The dye industry is used as an Potassium Sulphate
intermediate. Spices industry as auxiliaries and so on. The pharmaceutical industry is also used as a laxative, the treatment of soluble barium salt poisoning. Potassium sulfate in agriculture is commonly used potash, potassium oxide content of 50%, commonly known as "white plus" in Taiwan. In addition, potassium sulfate in the industry is also used for glass, dyes, spices, medicine and so on.
Potassium sulfate is a colorless crystal, hygroscopicity is small, easy to agglomerate, good physical properties, easy to use, is a good water-soluble potassium fertilizer. Potassium sulfate is also a chemical neutral, physiological acid fertilizer. Potassium sulfate is a kind of chlorine-free, high quality and high potash fertilizer, especially in tobacco, grape, beet, tea, potato, flax and a variety of fruit trees and other chlorine-sensitive crops in the planting industry, is an indispensable important fertilizer; Nitrogen, phosphorus, potassium ternary compound fertilizer main raw materials.
Potassium sulfate type compound fertilizer is produced by low temperature conversion of potassium chloride, chemical Potassium Sulphate synthesis and shotcrete granulation process. The stability of the potassium sulfate compound fertilizer is better than that of N, P and K essential nutrients, , Mg, Zn, Fe, Cu and other trace elements. This fertilizer is suitable for a variety of cash crops, especially for chlorine-sensitive crops. The main components of potassium sulfate-type compound fertilizer are MAP (ammonium diammonium phosphate) DAP (diammonium phosphate), ammonium sulfate (mainly low temperature conversion of surplus sulfuric acid and gas ammonia obtained). Potassium sulfate, urea and other others there are some small Potassium Sulphate amounts of impurities such as calcium sulfate, phosphoric acid iron, aluminum, magnesium and other salts and trace unreacted complete potassium chloride.
Potassium sulfate market trends in the near future, prices have risen. At present, 50% powdered potassium sulfate factory price more in 2300 ~ 2400 yuan (t price, the same below), 50% of the granular potassium sulfate factory price 2400 ~ 2550 yuan. Compared with the previous price lows, mostly up 200 yuan, more than 300 yuan high. The following are the same as the "
Potassium sulfate market trends rise, there are three main reasons:
Potassium sulfate is mainly used for compound fertilizer manufacturers to produce sulfur-based compound fertilizer. According to industry insiders, spring perennial sulfur-based fertilizer with a larger amount. Domestic spring sowing generally from late February to May, from south to north; from the spring crops, mainly rice, spring corn, rape, soybeans, peas, fruit Potassium Sulphate trees, vegetables and other use of sulfur-based compound fertilizer. At present, dealers have started to prepare fertilizer, coupled with the chlorine compound fertilizer compared to this year, relatively low price of sulfur-based compound fertilizer, sulfur-based fertilizer demand is relatively good, some manufacturers inventory sold out, the need for tissue reproduction, and thus The demand for raw material potassium sulfate is also increasing.
Potassium chloride is the leading varieties of potash fertilizer, potassium sulfate on the market a greater impact, coupled with a considerable part of China's potassium sulfate using Mannheim process to potassium chloride as raw material production, so the impact of potassium chloride on potassium sulfate Bigger. Since October, the market trend of potassium chloride firm, prices continue to push up. Recently, Qinghai Salt Lake potash up 100 yuan, 60% of potassium chloride for the agency to offer up to 1920 yuan, Qinghai small plant 57% powdered potassium chloride agent foreign sales offer also rose to 1700 yuan. Port potash price is leapt to the 2,000 yuan mark, the current 62% white potassium offer 2030 ~ 2050 yuan supply increased, while the early low, but about 1,800 yuan. Potassium chloride prices strengthened, driving the price of potassium sulfate rose。