The manufacturer tells you how to solve the problem that sodium tripolyphosphate(STPP) is insoluble in water
Editor：川东化工Time：2019-05-20Hits：
As everyone in the chemical industry knows, sodium tripolyphosphate(STPP) is white powder, soluble in water and white granular or powdery.
In fact, "practice often goes against theory". Technical grade sodium tripolyphosphate(STPP) is widely used and has relatively high value. Some illegal traders can easily add low-value products such as sodium bicarbonate and soda or directly add other impurities to pass the customs, which can not dissolve properly. Some manufacturers only guarantee the main content in the production process, other indicators are not taken into account, but also easy to cause many washing plants, ceramics factories, printing and dyeing factories are distressed:"sodium tripolyphosphate(STPP) that bought back is insoluble water or dissolved in water after turbidity and has a series of problems."
So what if the sodium tripolyphosphate(STPP) being used is not easily soluble in water and the water solution is turbid? It can be solved in the following three steps.
1. Heating. The solubility of sodium tripolyphosphate(STPP) will be stronger with the increase of temperature. Generally, sodium tripolyphosphate(STPP) insoluble in water will gradually dissolve in water and become clear with the increase of temperature in the dissolving environment.
2. Add stirring steps. Technical grade sodium tripolyphosphate(STPP) is generally a mixture of its type I and type II. Among them, I dissolves in water and quickly exothermic to produce small pieces, while stirring will be more conducive to dissolution, but also to solve the problem of solution turbidity.
3. If heating and stirring are still unable to solve the problem, the purity and quality of the raw materials should be considered.
As the manufacturer of high-quality sodium tripolyphosphate(STPP), it is necessary to explain that the sodium tripolyphosphate(STPP) produced by CDchem is soluble in water and its water solution is clarified. Moreover, we independently developed ceramic grade sodium tripolyphosphate(STPP), and formulated the only internal control indicators for more than 20 for ceramics in the world, with high purity and few impurities.
