NS-303: HPMA
CAS No.: [26099-09-2]
Chemical name: Hydrolyzed polymaleic anhydride
Description: equivalent to FMC¡¯s Belcor-200
Specification:
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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:
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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. |
