CAS No.: [26099-09-2]

Chemical name: Hydrolyzed polymaleic anhydride

Description: equivalent to FMC¡??s Belcor-200

Specification:

Appearance: homogeneous orange or orange-brown clear liquid

Solid content: 48.0% min.

Number average molecular weight: 300 min.

Bromine number: 160 mg/g max.

Density (20??C): 1.18 min.

PH (1% aqueous solution): 2.0 - 3.0

Packing: 220 kg drum

Usage:Usually used at a concentration of 2-3ppm together with phosphate, in systems like circulating cooling water, oilfield fill water, crude oil dewatering and inside-the-furnace trace treatment of low-pressure boilers. It has good scaling-prevention and descaling capability with scaling prevention rate of 98%. When it is used with 1-2ppm of zinc salts, it can effectively inhibit corrosion of carbon steel.