Copolymer of Maleic and Acylic Acid (MA/AA) ?CAS? 26677-99-6 Structural Formula: Properties: MA/AA is a low molecular weight polyelectrolyte, a copolymer of maleic anhydride and acrylic acid. It has good dispersant performance against carbonate and scale inhibition for phosphate. it has good thermal stability, can be used under high temperature (300?). MA/AA has good compatibility when used together with other agents. MA/AA is widely used in low-pressure boiler, centralized heating, centralized air-conditioner and circulating cool system. It can also be used as chelating dispersants in woven and dyeing fields. Specification: items Water treatment agent Accessory detergent Appearance Clear brown liquid amber transparent liquid Solid content % 48 min 50 min Free monomer (MA) % 9.0 max 5.0 max Density (20?)g/cm3 1.18 min 1.18min pH(1% solution) 2.0~3.0 2.0±1.0 Usage: MA/AA is used in circulating cool water system, medium or lower pressure boiler

Hydrolyzed Polymaleic Anhydride (HPMA) ?CAS? 26099-09-2 Dequest P9000 Structural Formula: Properties: HPMA is a low molecular weight polymeride, with average molecular weight 400-800. No toxicity, soluble in water, high chemical and thermal stability, decomposed temperature above 330?. HPMA has obvious threshold effect under high temperature (350?) and high pH(8.3)level, suitable to be used in alkaline water system or built with agents. It has good scale inhibition against carbonate and phosphate scales under temperature 300? with effective time as long as 100 hours. Due to its good scale inhibition and high temperature tolerance properties, HPMA is widely used in desalination plant of flash vaporization equipment, low pressure boiler, steam locomotive, crude oil evaporation, petroleum pipeline, and industrial circulating cool water systems. In addition, HPMA has good corrosion inhibition effect when used together with zinc salt. HPMA can also

Polyacrylic Acid Sodium (PAAS) CAS 9003-04-7 Properties: PAAS is innoxious and soluble in water, it can be used in situations of alkaline and high concentration without scale sediment. PAAS can disperse the microcrystals or microsand of calcium carbonate, calcium phosphate and calcium sulfate. PAAS is used as scale inhibition and dispersant for circulating cool water system, papermaking, weave, dyeing, ceramic, painting, etc. Specification: items index Appearance Colorless or light yellow transparent liquid Solid content % 30 min Free monomer (CH2=CH-COOH) % 0.5 max Density (20)g/cm3 1.15 min pH(1% solution) 6.0~8.0 Notes: Solid content 40%, 45% and 50% are also available Usage: PAAS can be used as scale inhibitor and dispersant in circulating cool water systems in power plants, iron & steel factories, chemical fertilizer plants, refineries and air conditioning systems. Dosage should be in accordance with water quality and equipment materials. When