Reverse osmosis scale inhibitor is a scale inhibitor specifically designed for reverse osmosis (RO) systems, nanofiltration (NF), and ultrafiltration (UF) systems. It can prevent membrane fouling, improve water production and quality, and reduce operating costs. Characteristics 1. Effectively control inorganic scaling within a large concentration range; 2. It does not condense with iron aluminum oxides and silicon compounds to form insoluble substances; 3. It can effectively inhibit the aggregation and deposition of silicon, and the concentration of SiO2 on the concentrated water side can reach 290; 4. Can be used for reverse osmosis CA and TFC membranes, nanofiltration membranes, and ultrafiltration membranes; 5. Good solubility and stability; 6. The pH value of the feedwater is valid within the range of 5-10.