磷酸三钠在锅炉中作为一款化学除垢剂使用，为什么会这样呢？下面氢氧化钾厂家就来为大家讲解一番。

Trisodium phosphate is used as a chemical scale remover in boilers. Why is this? Now the potassium hydroxide manufacturer will explain it to you.

工业磷酸三钠为白色或微黄色结晶，但不溶于二硫化碳和乙醇，水溶液呈碱性，需要注意的是它对人体皮肤会有一定侵蚀作用。１％水溶液PH值为12.1，如在干燥的空气中易风化。在100°C时即失去十一个结晶水，212°C以上时即变为无水物Na3PO4，能与酸或钙，铁，镁的盐类起复分解反应。

Industrial trisodium phosphate is white or yellowish crystal, but it is insoluble in carbon disulfide and ethanol. The aqueous solution is alkaline. It should be noted that it will have a certain corrosive effect on human skin. The pH value of 1% aqueous solution is 12.1, which is easily weathered in dry air. Eleven crystal water is lost at 100 ° C, and becomes anhydrous Na3PO4 at above 212 ° C, which can reacts with acid or calcium, iron and magnesium salts.

碱煮除垢，碱煮混合液的药品为氢氧化钠、碳酸钠和磷酸三钠。配比浓度为氢氧化钠0.3-0.5%+磷酸三钠0.5-1%（碳酸钠的用量是磷酸三钠的2-3倍）。缓慢升压到额定压力的一半，期间保持高水位煮24-48小时，煮后放掉碱液。

The drugs of alkali boiling mixture are sodium hydroxide, sodium carbonate and trisodium phosphate. The ratio concentration is 0.3-0.5% sodium hydroxide + 0.5-1% trisodium phosphate (the dosage of sodium carbonate is 2-3 times that of trisodium phosphate). Slowly increase the pressure to half of the rated pressure, keep the high water level for 24-48 hours, and drain the lye after cooking.

用清水冲洗只到出水PH值小于9.锅炉磷酸根过低，其实对锅炉的影响不会很大，磷酸根的作用是在锅筒内形成松散的磷酸钙或者磷酸镁，它们比较容易浮在锅水的表面，所以要通过表面排污来排除，也就是说可以阻碍在锅炉的管内壁形成难溶性的水垢，实际上是一种阻垢剂。

Wash with clean water until the pH value of the effluent is less than 9. The phosphate radical of the boiler is too low, which will not have a great impact on the boiler. The function of phosphate radical is to form loose calcium phosphate or magnesium phosphate in the boiler drum, which is relatively easy to float on the surface of the boiler water, so it should be discharged through surface sewage discharge, that is to say, it can prevent the formation of insoluble scale on the inner wall of the boiler pipe, which is actually a scale inhibitor.

除此之外，在炉外可以加入磷酸三钠作为化学除垢剂。就是这个原因。但是它不会因为这个而引起水冷壁管的破裂。更多注意事项就来我们网站http://www.jinhao360.com咨询了解吧。

In addition, trisodium phosphate can be added outside the furnace as a chemical scale remover. That's why. But it will not cause the rupture of the water-cooled wall tube because of this. Come to our website for more precautions http://www.jinhao360.com Consult and understand.