Dry polyacrylamide is characterized by its high molecular weight, which can range from several thousand to several million g/mol. This large molecular structure contributes to its functionality as a flocculant, thickener, and stabilizer. When mixed with water, dry polyacrylamide forms a gel-like substance that exhibits remarkable viscosity and can retain significant amounts of water. This property makes it ideal for applications where water retention is necessary.
Sulfamic acid can be synthesized through several methods, the most common being the reaction of sulfur trioxide with ammonia or by the hydrolysis of sulfamide. The latter method involves treating sulfamide with water at high temperatures, yielding sulfamic acid and releasing ammonia as a byproduct. Due to its straightforward synthesis and high solubility, sulfamic acid can be produced on a large scale, making it readily available for industrial use.