What is Acrylamide?

Acrylamide is an organic compound with the molecular formula C₃H₅NO. It is a white crystalline solid that is highly soluble in water and organic solvents. Acrylamide is primarily used as a monomer for the production of polyacrylamide (PAM) and related copolymers.

It plays a critical role in:

  • Water and wastewater treatment
  • Oilfield chemicals
  • Paper manufacturing
  • Mining and mineral processing
  • Textile and soil conditioning industries

 

Primary Industrial Uses and Applications

1. Water and Wastewater Treatment (largest segment)
Polyacrylamide flocculants derived from acrylamide clarify drinking water, treat municipal and industrial effluent, and dewater sludge. Anionic, cationic, and non-ionic PAM grades achieve superior solids separation and reduce chemical usage.

2. Paper Manufacturing
Used as dry-strength resin, retention aid, and drainage aid. Improves paper formation, filler retention, and machine speed while reducing energy consumption.

3. Enhanced Oil Recovery (EOR) and Petroleum Industry
High-molecular-weight polyacrylamide increases water viscosity in polymer flooding, improving sweep efficiency and oil displacement.

4. Mining and Mineral Processing
Serves as flocculant for tailings thickening, coal washing, and mineral separation (copper, gold, iron ore).

5. Construction and Civil Engineering
Chemical grouting agent and soil stabilizer for tunnel construction, sewer rehabilitation, well sealing, and reservoir lining. Provides excellent water control and structural reinforcement.

6. Other Applications

  • Sugar refining (juice clarification)
  • Textiles and dyes (printing thickeners)
  • Cosmetics and personal care (copolymers in low-residual-monomer grades)
  • Electrophoresis gels in molecular biology (research-grade only)

 

Safety, Handling, and Regulatory Compliance

Acrylamide monomer is classified as:

  • Toxic if swallowed (Acute Tox. 3, H301)
  • Harmful in contact with skin or if inhaled (H312 + H332)
  • Skin sensitizer and irritant (H317, H315)
  • May cause genetic defects and cancer (Muta. 1B H340, Carc. 1B H350)
  • Suspected of damaging fertility (Repr. 2 H361f)
  • Causes damage to organs through prolonged exposure (STOT RE 1 H372) — primarily the nervous system.

 

Key exposure controls

  • Use closed systems, local exhaust ventilation, and full PPE (chemical-resistant gloves, goggles, protective clothing).
  • Store below 25 °C, away from initiators, oxidizers, and direct sunlight.
  • OSHA PEL: 0.3 mg/m³ (skin); ACGIH TLV: 0.03 mg/m³ (inhalable, skin, A3 animal carcinogen).