Which Is More Effective: Solid Polyaluminium Chloride Or Liquid Polyaluminium Chloride?

There are indeed numerous polyaluminium chloride products available on the market. However, the majority are predominantly in solid powder form. Liquid polyaluminium chloride products do exist as well. So, which is more effective: solid or liquid polyaluminium chloride? Let's discuss.

Generally, we assume that higher-purity polyaluminium chloride products are more effective, though they also command a higher price. Solid polyaluminium chloride content is broadly categorised into four levels: below 26%, 26%, 28%, and 30%. Liquid polyaluminium chloride primarily comes in three concentrations: 9%, 10%, and 12%. In terms of purity, solid polyaluminium chloride products generally offer superior quality. Moreover, solid polyaluminium chloride production processes are comprehensive, encompassing plate-and-frame drying, drum drying, and spray drying. In summary, solid polyaluminium chloride is essentially the dried form of liquid polyaluminium chloride. It features low moisture content and high aluminium oxide (Al₂O₃) content. This constitutes the primary distinction between solid and liquid polyaluminium chloride.
 

In terms of application, solid polyaluminium chloride products offer greater convenience for transportation. They can be packaged in bags, facilitating both handling and shipping. Furthermore, solid polyaluminium chloride products possess a relatively long shelf life, typically two years. Provided the packaging remains intact, the product's efficacy remains unaffected during this period. Solid polyaluminium chloride requires only dissolution for use, a process completed rapidly within three to five minutes. Liquid polyaluminium chloride, while less convenient to transport with higher logistics costs and a shorter shelf life, eliminates the need for dissolution—it can be added directly. Consequently, it is priced more competitively. From this perspective, liquid polyaluminium chloride may be preferable for short-distance transport. Conversely, solid polyaluminium chloride is recommended for longer distances or where storage is inconvenient, as it requires minimal attention for preservation.

Generally speaking, even standard-grade polyaluminium chloride typically contains over 26% active ingredient. When purchasing, a content of 26% or above is sufficient to consider it a qualified product. Ultimately, whether liquid or solid polyaluminium chloride is more suitable depends entirely on your specific requirements.