The cost of polyacrylamide can vary depending on several factors such as the purity, grade, quantity purchased, supplier, and location. Polyacrylamide is used in various industries, including wastewater treatment, agriculture, and the oil and gas sector.

Low-grade Polyacrylamide: This is often used in industrial applications and may cost around $1 to $3 per pound.

Medium-grade Polyacrylamide: Used in a wider range of applications, including water treatment and some agricultural uses, this grade might cost between $3 to $8 per pound.

High-grade Polyacrylamide: Typically used in sensitive applications like cosmetics and pharmaceuticals, this grade can cost $8 to $20 per pound or more.

For larger quantities, you might be able to negotiate a lower price per pound. It's important to obtain quotes from multiple suppliers and consider factors like shipping costs and lead times when evaluating the overall cost.

Please note that these prices are approximate and can vary based on the factors mentioned earlier. For the most accurate and up-to-date pricing, I recommend contacting polyacrylamide suppliers-Xingzhon directly or checking industry-specific pricing databases.