PAPEMP is the abbreviation of polyamino polyether methylene phosphonate. It is a new kind of water treatment agent. PAPEMP has high chelation and dispersion effects, a high value of calcium tolerance, and good scale inhibition effects.

CAS No.:


Molecular Weight:

about 600.

Structure Formula:

PAPEMP structure formula


AppearanceAmber transparent liquid
Active component, %40.0 Min.
Phosphorous acid (as PO43-), %1.0 Max.
Density (20℃), g/cm31.20±0.05
pH (1%solution)2.0±0.5


PAPEMP can be used as a scale and corrosion inhibitor in circulating cool water systems and oilfield refill water systems in situations of high hardness, high alkali, and high pH value.

PAPEMP has an excellent scale inhibition ability to calcium carbonate, calcium sulfate, and calcium phosphate. It can efficiently inhibit the formation of silica scale, stabilize metal ions such as Zn, Mn, and Fe.

PAPEMP can be used as scale inhibitor for reverse osmosis system and multistep flash vaporization system in which high salt concentration, high turbidity, and high temperature are usually encountered (such as high temperature and high turbidity in coal vaporization system), accessory agent for woven & dyeing (for example, yellow turnback inhibition agent), as alternatives of EDTA, DTPA, and NTA.

A dosage of 5-100mg/L is preferred. Different from other Water Treatment Chemicals, the more quantity is, the better the effect. PAPEMP can be built with polycarboxylic acids.

Packing and Storage:

200L plastic drum, IBC(1000L),customers’ requirement. Storage for ten months in shady room and dry place.

200l plastic drum 1000l IBC


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