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你知道自己购买的磷酸二氢钾是真的吗?
来源:http://www.jnjrh.com 日期:2019-09-23 发布人:admin
一、问价钱
I. Asking Price
磷酸二氢钾纯度非常高,根本都在98%、99%以上,由于原料本钱的缘由,真磷酸二氢钾价钱都比拟高,以市场400克一袋的为例,价钱根本在12-14块钱左右。假如农资店的磷酸二氢钾价钱几块钱一袋,那根本能够断定为冒充伪劣商品,直接走人就能够了,千万不要图廉价花三块两块的去买。
The purity of potassium dihydrogen phosphate is very high, basically above 98% and 99%. Because of the cost of raw materials, the price of potassium dihydrogen phosphate is comparatively high. Take the market of 400 grams a bag as an example, the price is basically about 12-14 yuan. If the price of potassium dihydrogen phosphate in agricultural stores is several yuan and a bag, it can be concluded that it is a counterfeit and inferior commodity. It is enough to walk away directly. Don't try to buy it cheaply for three yuan and two yuan.
二、看含量
2. Look at the Content
真的磷酸二氢钾外包装上,在磷酸二氢钾五个大字下面普通都标有含量,含量普通标识为00-52-34,优质磷酸二氢钾中的五氧化二磷(P205)≥51.6、氧化钾(K20)≥34%,假如含量数字中,个00标有其他数字,或者后两个数字低于52、34,那也别买了!
Real potassium dihydrogen phosphate packaging, under the five big words of potassium dihydrogen phosphate, the content is generally marked as 00-52-34, phosphorus pentoxide (P205) > 51.6, potassium oxide (K20) > 34% in high-quality potassium dihydrogen phosphate. If the content number, the first 00 is marked with other numbers, or the last two numbers are low. In 52, 34, don't buy it!
三、看包装
3. Look at Packaging
1、真的磷酸二氢钾,在外包装上一定有磷酸二氢钾五个汉字,并且一定标有细致的消费企业、厂址、电话和执行规范(老执行规范为HG-2321-92、新执行规范HG-2321-2016),假如没有企业、厂址等表示,则为假货,同时能够试打包装袋上面的电话看看能否可以打通,假如打不通也为假货。
1. Real potassium dihydrogen phosphate must have five characters of potassium dihydrogen phosphate on the outer packaging, and must be marked with detailed consumer enterprises, factory sites, telephone and implementation specifications (old implementation specifications are HG-2321-92, new implementation specifications are HG-2321-2016). If there are no enterprises, factory sites, etc., it will be fake, and can be packed on trial. The phone on the bag to see if it can get through, if it can't get through, it's also a fake.
2、真的磷酸二氢钾标识都要遵照统一的标识标准,不会也不敢随意乱标,假如外包装上标有进口、纳米、高纯、复方等字的,或者标有稀土型、多肽型、复合型、增效型、微量元素型、螯合型、I型、Ⅱ型、生长因子型等字的,也能够断定是假货无疑。
氨基磺酸
2. Real potassium dihydrogen phosphate labeling should conform to the unified labeling standards, not and dare not randomly label, if the packaging is marked with import, nanometer, high purity, compound, or rare earth, polypeptide, compound, synergistic, trace element, chelating, I, II, growth factor, etc. It can also be concluded that there is no doubt that the goods are fake.
真磷酸二氢钾外包装普通比拟精巧,假如外包装粗糙简单、质量差,标识信息不清,也根本上都是假货。
Potassium dihydrogen phosphate packaging is generally comparable to exquisite. If the packaging is rough and simple, the quality is poor, and the identification information is unclear, it is also basically fake.
3、真的磷酸二氢钾全部是白色结晶或粉状的固体成分,一切瓶装或袋装的液体磷酸二氢钾全部为假货,由于国度制定的磷酸二氢钾执行规范HG2321-92中,就没有、也不允许消费液体磷酸二氢钾。
3. Real potassium dihydrogen phosphate is all white crystalline or powdery solid ingredients. All bottled or bagged liquid potassium dihydrogen phosphate is fake. Because of the national standard HG2321-92 for implementing potassium dihydrogen phosphate, there is no and no consumption of liquid potassium dihydrogen phosphate.
四、看颗粒外观
IV. Look at the appearance of particles
真的磷酸二氢钾,颗粒大局部是两三毫米大的长柱状白色晶体,警觉颜色透明、平均划一,假如是粉末状或者浅黄色、淡黄绿色、颜色不透明的,就要非常当心了!
Really potassium dihydrogen phosphate, most of the particles are long columnar white crystals of two or three millimeters in size, alert to transparent and uniform color, if it is powder or light yellow, yellowish green, opaque color, we must be very careful!
五、浅尝闻味儿
5. Taste
真的磷酸二氢钾无色无味,开袋弄几个颗粒放入口中或者闻闻袋内,有油腻咸味儿是真的,但假如咸味非常重、发苦,或者闻到有臭味、氨味、奶香味的,那么就是假货。入口的磷酸二氢钾,浅尝后一定要记得吐掉哦!
Real potassium dihydrogen phosphate is colorless and tasteless. It's true to open a bag and put a few grains in the mouth or smell the bag. But if the salty taste is very heavy, bitter, or smells of stink, ammonia and milk, it's a fake. Potassium dihydrogen phosphate at the entrance must be vomited after tasting it.
六、用火熄灭
6. Extinguishing with Fire
真的磷酸二氢钾用火烧,火焰是紫色的,而且不会有氨味儿,但假货会有很浓的氨味儿。
Real potassium dihydrogen phosphate is burned on fire. The flame is purple and does not smell of ammonia, but fake products will have a strong smell of ammonia.
七、太阳暴晒
7. Sun exposure
真的磷酸二氢钾,暴晒后颗粒颜色和性状不会变化,假的暴晒后会变色。
Real potassium dihydrogen phosphate will not change the color and properties of particles after exposure, but will change color after false exposure.
八、水溶察看
8. Water-soluble inspection
真的磷酸二氢钾可以完整在水中快速溶解,并且无沉淀,在磷酸二氢钾水溶液中参加一点纯碱,冒泡的是真货,发作絮状沉淀的为假货。
Real potassium dihydrogen phosphate can dissolve in water completely and quickly without precipitation. It takes part in a little soda ash in potassium dihydrogen phosphate aqueous solution. The foaming is genuine, and the flocculent precipitation is fake.