
CAS br. 26099-09-2
Strukturna formula:
Svojstva:
HPMA je polimerid niske molekularne težine, s prosječnom molekularnom težinom 400-800. Nema toksičnosti, topiv u vodi, visoka kemijska i toplinska stabilnost, temperatura raspada iznad 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 mogu se koristiti i kao aditivi za cement.
Specifikacija:
Predmeti |
Indeks |
Izgled |
Prozirna tekućina blijedožute do žute boje |
Sadržaj čvrste tvari, % |
48,0 min |
Broj broma, mg/g |
50,0 maks |
pH (1% vodena otopina) |
2.0-3.0 |
Gustoća (20 ℃), g/cm3 |
1.18 min |
Upotreba:
HPMA is usually used together with organic phosphonate at dosage of 1-15ppm for circulating cool water system, oilfield fill water, crude oil dewatering and low-pressure boilers. HPMA ima dobru inhibiciju kamenca (98%) i svojstva uklanjanja kamenca. Kada se koristi zajedno sa solima cinka, može učinkovito spriječiti koroziju ugljičnog čelika.
Pakiranje i skladištenje:
Plastična bačva od 200L, IBC (1000L), zahtjev kupaca. skladištenje godinu dana u sjenovitom prostoru i na suhom mjestu.
Sigurnost i zaštita:
HPMA je kisela, stoga treba izbjegavati kontakt s kožom, očima itd. Nakon kontakta oprati s puno vode.
Sinonimi:
HPMA; Hydrolyzed Polymaleic Anhydride; poly(maleicacid);
Polymaleic Acid; MALEIC ACID POLYMER;Polymaleic Acid
Hidrolizirani anhidrid polimaleinske kiseline