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怎么辨别磷酸二氢钾的真伪?

发布来源:http://www.jinhao360.com    更新时间:2019-04-29 点击数:

由于磷酸二氢钾在农业生产中的商品价值很高,同时其外观又与硫酸镁、工业废盐、碳铵、激素等十分相像,这就给一些不法商贩带来了制假售假的契机,辨别和购买到真正的磷酸二氢钾才是保证效果的基础。

  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、价格上:正规的磷酸二氢钾200克售价在6-7元左右,市面上售价在4元以内的有的甚至是2元左右,显然是假货。
  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、看包装:包装上会有醒目的“磷酸二氢钾”字样,执行标准为HG2321~92,总养分含量≥86%,其中P2O5≥52%,K2O≥34%。没有其他诸如“Ⅰ型、Ⅱ型、真品、微量元素、复合型、改进型”等字样,如此这般均可视为假货。
  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.
氢氧化钾
  3、闻气味:真正的磷酸二氢钾是白色无味晶体,能闻到味道的都是假货,经过火烧、暴晒也无味道,有异味的说明是添加了激素或是假货。
  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、尝味道:真正的磷酸二氢钾是淡淡的咸味,取几颗放在嘴里,如果苦味可能是硫酸镁,如果很咸,可能是海盐冒充。
  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、用火烧:取少量磷酸二氢钾放在铁片上,如果溶解成透明液体,冷却后凝固成半透明状物体,则是真品。
  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:将纯碱放入磷酸二氢钾溶液中,如果出现大量气泡则为正品,如出现絮状沉淀则为假货。
  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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