Many people don't know thatsodium tripolyphosphate(STPP)is not only used in water treatment agents,surfactants and food additives, but also widely used as an important detergent additive in syntheticdetergents, as well as in ceramics production. Therefore, the demand for STPP in the market remainshigh. In order to prevent some malicious business, CD will tell you how to distinguish genuine orimitative STPP.

　　First, the appearance of STPP. It has a white granule or powder appearance. Those who have been exposedto high quality STPP should be aware that it should feel like an expanded particle or powder. If youpinch it and it's loose and sticky, you need to pay attention to it!

　　Secondly, take clear water and dissolve proper amount of STPP of CD in water. The genuine sodiumtripolyphosphate solution should be clear and transparent. If you add the same amount of products youbuy one day and it turns cloudy, please pay attention to it!

　　Thirdly, take a little dilute soapy water and dissolve it with tap water to get milky and cloudy liquid(because calcium and magnesium ions in tap water will form soap scale with soap). It's genuine STPPthat if you add a little bit of STPP, you can make the liquid clear. But if you have added a lot ofSTPP, and it stays the same, please pay attention to it!