Industry News

According to the comprehensive analysis of existing regulations and chemical properties, Polyaluminum Chloride (PAC) is not a legal dangerous goods, but due to its chemical properties, the use and storage should strictly comply with safety specifications. The specific analysis is as follows:

1. Screening of core quality indicators

1.Alumina content (Al₂O₃)

● Industrial grade: ≥28% (plate frame/spray type), drinking water grade: ≥30%;

● Note: High content (30%) may be ineffective in acidic/low turbidity water and should be matched to The Water Quality

Roller-dried polyaluminum chloride (PAC), a highly efficient flocculant for water treatment, is widely used in both water purification and wastewater management. As a solid form of polyaluminum chloride (PAC), it is manufactured through a drum-drying process, offering advantages such as convenient storage and high efficiency. Below I will elaborate on key aspects:

According to "PAC for drinking water" (GB15892-2020), the key indicators include:

Alumina (Al₂O₃) content: liquid> or equal to 10%, solid> or equal to 29%, to ensure flocculation efficiency.

The normalization of environmental restrictions has led to the exit of small and medium-sized production capacities. For example, in the PAC production area of Gongyi, Henan, the price of Q1 increased by 10% in the short term due to environmental restrictions in 2025. In the long run, environmental inspections have eliminated low-end production capacities (such as low-purity products produced using the drum method), leading to increased industry concentration and stronger bargaining power for leading companies.

Drinking water-grade liquid polyaluminum chloride is a high-purity inorganic polymer coagulant specifically designed for drinking water purification. Its chemical formula is [Al₂(OH)ₙCl₆−n]m[Al₂​(OH)ₙ​Cl₆−n​]m​. The product strictly complies with China's "Hygienic Standard for Drinking Water" regarding heavy metal residue levels (arsenic ≤0.0005%, lead ≤0.001%) and salt base content (40%-60%). Compared to industrial-grade products, it demonstrates distinct advantages:

The following is a comprehensive analysis of the price trend of China's industrial grade polyaluminum chloride (PAC) solid in the first half of 2025, based on the latest market data:

According to the national standards, product forms and application scenarios, there are clear classification of polyferric sulfate, as follows: