
TEST ITEMS | TEST STANDARD | |
N/% >= | 20.5 | 19 |
S/% >= | 24 | 21 |
H2SO4/% <= | 0.05 | 0.2 |
H2O/% <= | 0.5 | 2 |
Water insoluble matter/% <= | 0.5 | 2 |
CL-/% <= | 1 | 2 |



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There are also many biological uses, mostly used in protein purification process, because ammonium sulfate is an inert substance, not easy to react with other bioactive substances, in the purification process can maximize the protection of protein activity, in addition, ammonium sulfate is extremely soluble, can form a high salt environment, for protein precipitation and subsequent high salt purification preparation. There is a big difference between the solubility of ammonium sulfate at zero and 25 degrees at room temperature. The following is the molar concentration of ammonium sulfate at different saturation at two temperatures.

At the same time, relying on our own geographical location and resource advantages, our company is committed to the optimization of a variety of chemical supply chain, including magnesium chloride, sodium metabisulfite, sodium bicarbonate, calcium chloride, magnesium sulfate, polyaluminium chloride, aluminium sulfate, industrial salt, soda ash etc.
Our products are sold well in 288 domestic cities and more than 36 foreign countries. Now the company has won the praise and trust of domestic and foreign customers. Based on stable quality and output, good team service and staff efforts, we will continue to develop domestic and foreign markets.
Jiuchong chemical takes "integrity, innovation and development" as the concept, puts integrity in the priority position in serving customers, and guarantees high quality products and satisfactory cooperation for customers experience. Your satisfaction is our driving force. Quality is the soul of enterprise and that is what we have always done. In the future, Shandong Jiuchong Chemical Company Limited hopes to build a brilliant tomorrow with you!






