Anionic Polyacrylamide

Overview Specification Advantages Application Fields Storage and Precautions

Overview

Anionic Polyacrylamide (APAM) is a water-soluble high molecular polymer copolymerized from acrylamide and acrylate monomers, with negatively charged functional groups on its molecular chains. Its mechanism of action is dominated by adsorption bridging, accompanied by a charge neutralization effect: the long-chain polymer can strongly adsorb multiple suspended particles to form coarse flocs; meanwhile, the anionic groups can neutralize a small number of positive charges in the system, assisting in destabilizing and aggregating particles. This product is widely used for solid-liquid separation and wastewater purification in various industries, supporting water resource recycling.

Specification

Appearance	Solid content (%)	Molecular weight (M)	Hydrolysis degree (%)	Dissolution time (min)
White powder	≥88	0.5-18	10-90	30-90

Advantages

Compact flocs, fast settling rate, and low dosage requirements.

High level of water clarification after process.

Wide applicable pH range (5-14).

Good compatibility with inorganic coagulant.

Application Fields

Sewage flocculation and sedimentation

Sludge dewatering

Additive thickening

Construction and shield slurry

Oil industry

River dredging

Minerals selection and sewage disposal

Sand washing and sludge dewatering

Storage and Precautions

The product is non-toxic, water-soluble, and may cake if moistened.

In case of hands or skin contact, rinse immediately and thoroughly with water.

Store in a dry place at temperatures between 5°C and 40°C.

The prepared liquid polyacrylamide solution should not be stored for extended periods. Storage beyond 24 hours may reduce its efficacy.

It is recommended to use low-hardness water with a neutral pH (6-9) to dissolve polyacrylamide. Using groundwater or reclaimed water will result in reduced product effectiveness.

Scale Selection

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