At present, with the wide application of sodium sulfide in smelting and electroplating and other industries, there are more and more sodium sulfide products on the market. At first, we commonly use solid state, until later slowly used in the liquid state, of course, the quality control technology of sodium sulfide product extraction is also improving. From reddish-brown gradually have a yellow product, mainly because in the extraction of production, for impurities in the product and other metal elements in the quality requirements are higher, so the impurities are less, the purity of the product is high, the content of nature is also improved. However, due to the current sodium sulfide industry for yellow high-purity sodium sulfide product production is less, mainly the extraction and production requirements are too harsh, can not produce too much, and the production cost is high, so this is also one of the reasons for the expensive light sodium sulfide products.
Now, because more sodium sulfide production factories in the production of light sodium sulfide process will always be affected by some factors, unable to meet the requirements, so now, the main production is mainly red sodium sulfide. And because of these, now the smelting and plating industry only use red sodium sulfide treatment, commonly used liquid products, mainly fast reaction, and the use of liquid products are on-site, which is also related to the nature of sodium sulfide itself.
The problem now is that the red sodium sulfide commonly used in industry has many impurities, low purity, and also contains a variety of metal elements. In addition, mainly because sodium sulfide is a strong alkali substance. And by the reaction of many manufacturers, the use of sodium sulfide in smelting industry and electroplating industry will have an impact on the coating. The main sodium sulfide alkaline is too high, to make the coating damage, lead to plating surface concave and convex, in fact, this is the disadvantage of solid sodium sulfide use, not only alkaline strong, corrosive, but also poor reaction. Therefore, it is recommended to prepare liquid use, in this way, sodium sulfide has been diluted, alkaline is not strong solid, can reduce the corrosion of the coating, there will be no poor reaction, not only that, liquid sodium sulfide reaction speed is faster than solid.
There is, however, the important thing is, don't think liquid sodium sulfide has been diluted, will not affect coating, in fact, is not to say that have no effect, reduces the impact, so the dosing quantity is very important, and adding the amount should be better through the experiments on dosing quantity, in order to avoid the plating now, along with sodium sulfide in electroplating and smelting industries are widely used, Now there are more and more sodium sulfide products on the market. At first, we often use solid state, but then slowly use liquid state. Of course, the quality control technology of sodium sulfide product extraction is also improving. From reddish-brown gradually have a yellow product, mainly because in the extraction of production, for impurities in the product and other metal elements in the quality requirements are higher, so the impurities are less, the purity of the product is high, the content of nature is also improved. However, due to the current sodium sulfide industry for yellow high-purity sodium sulfide product production is less, mainly the extraction and production requirements are too harsh, can not produce too much, and the production cost is high, so this is also one of the reasons for the expensive light sodium sulfide products.
Now, because more sodium sulfide production factories in the production of light sodium sulfide process will always be affected by some factors, unable to meet the requirements, so now, the main production is mainly red sodium sulfide. And because of these, now the smelting and plating industry only use red sodium sulfide treatment, commonly used liquid products, mainly fast reaction, and the use of liquid products are on-site, which is also related to the nature of sodium sulfide itself.
The problem now is that the red sodium sulfide commonly used in industry has many impurities, low purity, and also contains a variety of metal elements. In addition, mainly because sodium sulfide is a strong alkali substance. And by the reaction of many manufacturers, the use of sodium sulfide in smelting industry and electroplating industry will have an impact on the coating. The main sodium sulfide alkaline is too high, to make the coating damage, lead to plating surface concave and convex, in fact, this is the disadvantage of solid sodium sulfide use, not only alkaline strong, corrosive, but also poor reaction. Therefore, it is recommended to prepare liquid use, in this way, sodium sulfide has been diluted, alkaline is not strong solid, can reduce the corrosion of the coating, there will be no poor reaction, not only that, liquid sodium sulfide reaction speed is faster than solid.
However, there is an important point, do not think that liquid sodium sulfide has been diluted, will not have an effect on the coating, in fact, not to say that there is no effect, just reduce the effect, so the dosage is quite important, and the dosage should be obtained through the test of the best dosage, in order to avoid the effect on the coating.