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怎么辨別磷酸二氫鉀的真偽?

發布來源:http://www.fx311.com    更新時間:2021-02-13 點擊數:

由于磷酸二氫鉀在農業生產中的商品價值很高,同時其外觀又與硫酸鎂、工業廢鹽、碳銨、激素等十分相像,這就給一些不法商販帶來了制假售假的契機,辨別和購買到真正的磷酸二氫鉀才是保證效果的基礎。

  Potassium dihydrogen phosphate has a high value in agricultural production, and its appearance is very similar to magnesium sulfate, industrial waste salt, ammonium carbonate, hormones and so on. This gives some illegal vendors a chance to make counterfeit sales. Identifying and purchasing real potassium dihydrogen phosphate is the basis of guaranteeing the effect.
  1、價格上:正規的磷酸二氫鉀200克售價在6-7元左右,市面上售價在4元以內的有的甚至是2元左右,顯然是假貨。
  1. Price: The regular price of potassium dihydrogen phosphate 200 grams is about 6-7 yuan, and the market price is less than 4 yuan or even about 2 yuan, which is obviously a fake.
  2、看包裝:包裝上會有醒目的“磷酸二氫鉀”字樣,執行標準為HG2321~92,總養分含量≥86%,其中P2O5≥52%,K2O≥34%。沒有其他諸如“Ⅰ型、Ⅱ型、真品、微量元素、復合型、改進型”等字樣,如此這般均可視為假貨。
  2. Look at the packaging: There will be a striking word "potassium dihydrogen phosphate" on the packaging. The implementation standard is HG2321-92. The total nutrient content is over 86%, of which P2O5 is over 52%, K2O is over 34%. There are no other words such as "Type I, Type II, genuine products, trace elements, compound, improved" and so on, which can be regarded as fake.
氫氧化鉀
  3、聞氣味:真正的磷酸二氫鉀是白色無味晶體,能聞到味道的都是假貨,經過火燒、暴曬也無味道,有異味的說明是添加了激素或是假貨。
  3. Smell: Real potassium dihydrogen phosphate is a white tasteless crystal, which smells fake. After burning and exposure, it is tasteless. The odorous description is adding hormones or fake.
  4、嘗味道:真正的磷酸二氫鉀是淡淡的咸味,取幾顆放在嘴里,如果苦味可能是硫酸鎂,如果很咸,可能是海鹽冒充。
  4. Taste: Real potassium dihydrogen phosphate is slightly salty. Take a few pills and put them in your mouth. If the bitterness may be magnesium sulfate, if it is very salty, it may be sea salt.
  5、用火燒:取少量磷酸二氫鉀放在鐵片上,如果溶解成透明液體,冷卻后凝固成半透明狀物體,則是真品。
  5. Burn with fire: Take a small amount of potassium dihydrogen phosphate and put it on the iron sheet. If it dissolves into a transparent liquid and solidifies into a translucent object after cooling, it is the real product.
  6、水溶法:將純堿放入磷酸二氫鉀溶液中,如果出現大量氣泡則為正品,如出現絮狀沉淀則為假貨。
  6. Water-soluble method: Put soda into potassium dihydrogen phosphate solution, if there are a large number of bubbles, it is genuine, if there is flocculent precipitation, it is fake.

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