What is PAC 10%? Liquid Coagulant for Medium & Small Water Treatment Systems
5 Key Takeaways:
- PAC 10% is a pre-diluted coagulant with 10% ± 1% active content (CAS 1327-41-9)
- Specific gravity 1.19–1.20 g/cm³ (20°C), pH 2–4 — acidic, requires FRP/HDPE/PVC tanks
- Ideal for small/medium systems, swimming pools, fish/shrimp ponds — no large storage needed
- Direct dosing without powder dissolution — reduces labor costs
- Loc Thien delivers nationwide within 24h — call 0979 891 929 for instant quotes
1. What is PAC 10%?
PAC 10% — full name Poly Aluminium Chloride 10% solution — is an inorganic aluminum polymer coagulant with the general formula [Al₂(OH)ₙCl₆₋ₙ]ₘ. This pale yellow to clear liquid is pre-diluted from concentrated PAC, enabling direct dosing without dissolution steps.
The core difference between PAC 10% and powdered PAC: no manual mixing required. With PAC 31% powder, plants must dissolve it into 5–10% solution, stir for 30–60 minutes, settle for 2–4 hours before dosing. PAC 10% allows direct metering from drums or tanks — eliminating mixing errors and labor.
This makes PAC 10% the top choice for small water plants, residential wastewater systems, swimming pools, and aquaculture — where daily chemical consumption is low but operational simplicity is critical.
2. PAC 10% Technical Specifications
Below TDS summarizes PAC 10% parameters per Loc Thien’s MSDS. Actual COA varies by production batch.
| Parameter | Unit | Value |
|---|---|---|
| Product Name | — | Poly Aluminium Chloride (PAC) 10% |
| Chemical Formula | — | [Al₂(OH)ₙCl₆₋ₙ]ₘ |
| CAS Number | — | 1327-41-9 |
| Active Content | % | 10 ± 1 |
| Appearance | — | Pale yellow to clear liquid |
| Specific Gravity (20°C) | g/cm³ | 1.19–1.20 |
| pH (10% solution, 20°C) | — | 2–4 |
| Solubility | — | Fully water-soluble |
| Stability | — | Stable at ambient conditions |
| Origin | — | Vietnam |
| Packaging | — | 30L cans · 200L drums · Bulk tanks · 5–30 ton tankers |
Note: PAC 10% pH is acidic (2–4). Contact equipment must use acid-resistant materials — avoid carbon steel or bare stainless steel. See Section 6.
3. Applications of PAC 10%
3.1. Medium/Small-Scale Water Treatment
PAC 10% serves as the primary coagulant in coagulation-flocculation-sedimentation-filtration systems for water plants below 5,000 m³/day capacity, bottled water facilities, and residential clusters. It removes suspended solids, turbidity, organics, and bacteria — achieving QCVN 01-1:2018/BYT drinking water standards.
3.2. Domestic & Light Industrial Wastewater
For small wastewater plants, resorts, and hospitals requiring stable clarity without complex dosing systems, PAC 10% delivers effective coagulation with lower sludge production than alum.
3.3. Swimming Pools
As a filter aid, PAC 10% agglomerates suspended particles (<5 microns) into flocs for sand filtration. Typical dose: 5–10 mg/L, 1–2 times weekly. Note: PAC doesn’t disinfect — maintain separate free chlorine.
3.4. Aquaculture
PAC 10% clarifies shrimp/fish pond water by coagulating algae, suspended solids, and organic debris. The liquid form allows direct dosing without powder mixing.
4. PAC 10% Dosage & Dosing Methods
Dosage depends on source water turbidity and system capacity. Below are reference values — always conduct jar tests with actual water before full-scale operation.
| Application | Reference Dose | Notes |
|---|---|---|
| Water Supply (<150 NTU) | 15–40 mg/L | Increase during rainy seasons |
| Domestic Wastewater | 50–200 mg/L | Combine with anionic polymer if needed |
| Pools (Filter Aid) | 5–10 mg/L | Dose 1–2x weekly before filters |
| Aquaculture Ponds | 2–5 mg/L | Cyclic dosing, avoid overdose shock |
Dosing Method: PAC 10% is ready-to-use — meter directly into rapid mix zone (80–150 RPM for 1–3 mins), then slow mix (20–40 RPM for 15–30 mins) for flocculation, followed by 60–120 mins settling. Adjust raw water pH to 6.5–7.5 before dosing for optimal performance.
5. PAC 10% vs. PAC 17% vs. PAC 31% — How to Choose?
All three are liquid PACs differing in active content and density. Selection depends on plant capacity and logistics.
| Criteria | PAC 10% | PAC 17% | PAC 31% |
|---|---|---|---|
| Active Content | 10% ± 1% | 17% (Al₂O₃ ≥ 17%) | ~31% (concentrated) |
| Specific Gravity (20°C) | 1.19–1.20 g/cm³ | 1.375 g/cm³ | Higher |
| Typical Form | Ready liquid | Liquid | Concentrated liquid/powder |
| Best For | Small/medium systems, pools, aquaculture | Textiles, paper, medium water plants | Large plants (>5,000 m³/day) |
| Transport Cost/kg Active | Highest (diluted) | Medium | Lowest (concentrated) |
Selection Rule: Large plants with big storage → PAC 31% for transport savings. Small systems needing simplicity → PAC 10%. Textiles/paper requiring color removal → PAC 17%.
6. PAC 10% Storage & Safety
6.1. Compatible Materials
| Material | Recommendation |
|---|---|
| Storage Tanks | FRP, HDPE, PP, PVC |
| Dosing Pumps | PTFE/EPDM diaphragm pumps, PVC/PP heads |
| AVOID | Carbon steel, bare stainless, aluminum, copper |
6.2. Storage
- Temperature 5–35°C, avoid direct sunlight
- Shelf life 6–12 months per batch COA
- Prevent freezing (<0°C causes irreversible precipitation)
- Seal containers after use to prevent evaporation/contamination
6.3. PPE Requirements
- Chemical-resistant gloves (nitrile/neoprene)
- Safety goggles
- Long-sleeve protective clothing
6.4. First Aid
- Eye Contact: Flush with running water for 15 mins, seek medical help
- Skin Contact: Remove contaminated clothing, wash with soap/water
- Ingestion: Rinse mouth, DO NOT induce vomiting, seek immediate care
7. Loc Thien — PAC 10% Supplier for Industrial Plants
Loc Thien Chemicals supplies PAC 10% nationwide to water plants, industrial parks, and aquaculture farms:
- 6 Nationwide Warehouses: Stock available in Binh Duong, HCMC, Dong Nai, Long An, Hanoi, Da Nang — same-day delivery.
- 20 Dedicated Tankers: Transport 5–30 tons/load safely without cross-contamination.
- Batch-Specific COA/MSDS: Full traceability with each shipment.
- Free Technical Support: Engineers assist with site surveys, dosage calculations, and jar tests.
Call 0979 891 929 — quotes within 15 minutes.
8. FAQs
Does PAC 10% require further dilution?
No. PAC 10% is pre-diluted for direct metering. Unlike PAC powder which requires dissolving into 5–10% solution.
Can PAC 10% treat textile wastewater?
Yes, but for high-color loads, PAC 17% or 31% perform better. PAC 10% suits low-pollution applications like water supply, domestic wastewater, and pools.
What is PAC 10% specific gravity?
1.19–1.20 g/cm³ at 20°C. Used for volume-to-mass conversion in metering pumps.
Is PAC 10% corrosive?
Yes. With pH 2–4 and Cl⁻ ions, it requires FRP/HDPE/PVC tanks. Avoid carbon steel or bare stainless steel.
Where to buy reliable PAC 10%?
Loc Thien Chemicals — 6 warehouses, 20 tankers, batch-specific COA/MSDS. Call 0979 891 929 for instant quotes, 24h nationwide delivery.
See also: PAC 17% — Medium-Strength Coagulant for Textiles & Paper · What is PAC? — Comprehensive Guide · PAC 10% Liquid Pricing
LOC THIEN INVESTMENT DEVELOPMENT CO., LTD
Tax Code: 0313650856 — Address: 219/19A, Binh Phuoc B Hamlet, Binh Chuan Ward, Thuan An City, Binh Duong
Hotline: 0979 891 929 — Email: [email protected]
Website: hoachatlocthien.com