Anionic Polyacrylamide (APAM) — VIT Series
CAS Number: 9003-05-8
Anionic polyacrylamide (APAM) VIT Series are high-molecular-weight anionic flocculants produced by free-radical copolymerisation of acrylamide with anionic monomers (sodium acrylate). Molecular weight spans 8–20 million Da and hydrolysis degree 13–30%, enabling grade-specific performance across municipal water treatment, mining tailings clarification, oil-field produced water, paper wet-end retention, and soil erosion control. Solid powder form (≥88% active) dissolves in water at 0.1–0.2% concentration for dosing. Residual monomer ≤0.05% for environmental compliance.
Technical Specifications
| appearance | White to off-white granular powder |
| solid content | ≥ 88 wt% |
| molecular weight | 800 – 2000 万 (8–20 million Da) |
| hydrolysis degree | 13 – 30 mol% |
| pH range (1% solution) | 6.0 – 8.5 |
| residual acrylamide monomer | ≤ 0.05 wt% |
| recommended dosing concentration | 0.1 – 0.2 wt% |
| dissolution time (0.1% solution, 25°C) | ≤ 60 min |
Applications
- Municipal and industrial wastewater clarification: suspended solids flocculation
- Mining tailings settlement and thickener feed conditioning
- Oil-field produced water treatment and reinjection
- Coal washing effluent dewatering
- Paper and pulp wet-end retention and drainage aid
- Soil erosion control and irrigation furrow stabilisation
- Sugar juice clarification
Key Features
- Ultra-high molecular weight up to 20 million Da — efficient charge-neutralisation and bridging flocculation at low dosage
- 8 grades (VIT-01 / 02 / 03 / 170 / 270 / 340 / R1 / 1312) cover MW 8–20 million × HD 13–30% matrix
- Low residual monomer ≤0.05% — meets GB/T 17514, ISO 10523 and EPA guidelines
- Solid powder form — long shelf life, easy transport and dosing
- Compatible with cationic flocculants (CPAM) for dual-polymer programmes
Grade Variants & Supplier Reference
Specific grades available from leading Chinese-market suppliers. Spec sheets and lead-time vary per grade — request a quote to confirm availability.
VIT-01APAM VIT-01VIT
| HD | 22% |
| MW | 1600万 |
VIT-02APAM VIT-02VIT
| HD | 20% |
| MW | 1200万 |
VIT-R1APAM VIT-R1VIT
| HD | 18% |
| MW | 1000万 |
VIT-03APAM VIT-03VIT
| HD | 25% |
| MW | 1700万 |
VIT-170APAM VIT-170VIT
| HD | 28% |
| MW | 1800万 |
VIT-270APAM VIT-270VIT
| HD | 30% |
| MW | 1900万 |
VIT-340APAM VIT-340VIT
| HD | 30% |
| MW | 2000万 |
VIT-1312APAM VIT-1312VIT
| HD | 13% |
| MW | 800万 |
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