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Send EmailPolydiallyldimethylammonium Chloride, Polyquaternium-6, PolyDADMAC, PDADMAC, 26062-79-3
PolyDADMAC / Polydiallyldimethylammonium Chloride / Poly(DADMAC) / Polyquaternium-6
CAS Number: 26062-79-3
EC Number: 203-973-8
| Parameter | Information |
|---|---|
| Product Name | Polydiallyldimethylammonium Chloride (PolyDADMAC) |
| Chemical Name | Poly(diallyldimethylammonium chloride) |
| Other Names | PolyDADMAC, Poly(DADMAC), Polyquaternium-6, PDADMAC |
| CAS Number | 26062-79-3 |
| EC Number (EINECS) | 203-973-8 |
| Molecular Formula | (C₈H₁₆NCl)ₙ |
| Molecular Weight | Variable (typically 100,000 – 500,000 g/mol) |
| Chemical Class | Cationic organic polymer (quaternary ammonium compound) |
| Appearance | Colorless to pale yellow viscous liquid |
| Odor | Slight amine-like odor |
| Physical State (20°C) | Liquid |
| Charge Type | High cationic charge density |
PolyDADMAC is a high molecular weight, high charge density cationic polymer belonging to the quaternary ammonium compound family. It is widely used as a coagulant and flocculant in water and wastewater treatment, as a retention and drainage aid in the paper industry, and as a dye fixing agent in textile processing. Its strong cationic charge makes it highly effective in neutralizing negatively charged particles, colloids, and organic matter.
| Type | Name |
|---|---|
| Common Names | PolyDADMAC, Poly(DADMAC), PDADMAC |
| INCI Name | Polyquaternium-6 |
| Chemical Names | Poly(diallyldimethylammonium chloride), Poly(DADMAC) |
| CAS Number | 26062-79-3 |
| EC Number | 203-973-8 |
| HS Code | 3906.90 |
PolyDADMAC is a cationic polymer formed by the polymerization of diallyldimethylammonium chloride (DADMAC) monomers. The polymer contains quaternary ammonium groups that carry a permanent positive charge regardless of pH.
Monomer Structure:
CH₂=CH
|
CH₂ = CH - N⁺(CH₃)₂ Cl⁻
Polymer Structure:
text
-[CH₂ - CH - CH - CH₂]ₙ-
| |
N⁺(CH₃)₂ N⁺(CH₃)₂
Cl⁻ Cl⁻
Simplified Representation:
(C₈H₁₆NCl)ₙ
| Feature | Description |
|---|---|
| Functional Group | Quaternary ammonium (N⁺) |
| Charge Type | Cationic (permanent positive charge) |
| Charge Density | High |
| Molecular Weight | Typically 100,000 – 500,000 g/mol |
| Counter Ion | Chloride (Cl⁻) |
| pH Dependence | Not pH dependent (permanent charge) |
| Property | Value |
|---|---|
| Appearance | Colorless to pale yellow viscous liquid |
| Odor | Slight amine-like odor |
| Density (20°C) | 1.10 – 1.20 g/cm³ |
| pH (1% solution) | 4.0 – 6.0 |
| Viscosity (25°C) | 5,000 – 10,000 cP (mPa·s) |
| Water Solubility | Completely soluble |
| Organic Solvent Solubility | Insoluble (in most organic solvents) |
| Charge Density | High (~6.2 meq/g) |
| Molecular Weight Range | 100,000 – 500,000 g/mol |
| Solid Content | Typically 20 – 40% (commercial grades) |
| Freezing Point | ~ -5°C (depending on concentration) |
| Stability | Stable under normal conditions |
| Decomposition Temperature | >200°C |
| Solvent | Solubility | Conditions |
|---|---|---|
| Water | Completely soluble | All proportions |
| Ethanol | Partially soluble | 25°C |
| Acetone | Insoluble | 25°C |
| Benzene | Insoluble | 25°C |
| Toluene | Insoluble | 25°C |
| Chloroform | Insoluble | 25°C |
| Property | Description |
|---|---|
| Chemical Character | Cationic (quaternary ammonium) |
| Charge Type | Permanent positive charge (not pH dependent) |
| Stability | Stable under normal storage conditions |
| pH Stability | Stable from pH 2 – 11 |
| Reactivity | Forms complexes with anionic substances; precipitates with high molecular weight anionic polymers |
| Incompatible Materials | Strong oxidizers, high molecular weight anionic polymers (may precipitate) |
| Step | Description |
|---|---|
| 1 | Addition of cationic PolyDADMAC to water |
| 2 | High positive charge neutralizes negatively charged particles (colloids, suspended solids, organic matter) |
| 3 | Charge neutralization causes particles to destabilize |
| 4 | Bridging between particles occurs (high molecular weight) |
| 5 | Formation of larger, settleable flocs |
| 6 | Flocs settle by gravity or are removed by filtration |
| 7 | Clear supernatant water |
Advantages of Cationic Charge:
Effective over wide pH range
Not affected by pH changes (permanent charge)
Rapid floc formation
Effective at low dosages
| Application | Description |
|---|---|
| Coagulation/Flocculation | Primary coagulant for turbidity and suspended solids removal |
| Color Removal | Effective for removal of anionic dyes and color compounds |
| Phosphorus Removal | Precipitation of phosphorus compounds |
| Sludge Dewatering | Conditioning agent for sludge dewatering |
| Drinking Water Treatment | Primary coagulant or coagulant aid |
| Industrial Wastewater Treatment | Textile, paper, food, chemical, and metal industry wastewaters |
| Application | Description |
|---|---|
| Retention Aid | Improves retention of fibers, fillers, and fines |
| Drainage Aid | Enhances drainage on the paper machine |
| Strength Additive | Improves paper strength properties |
| Charge Control | Controls cationic demand in wet-end chemistry |
| Application | Description |
|---|---|
| Dye Fixative | Fixes dyes onto fibers; improves wash fastness |
| Anti-Migration Agent | Prevents dye migration during drying |
| Wastewater Treatment | Coagulant for textile dyeing wastewater |
| Application | Description |
|---|---|
| Clarifier | Removes fine suspended particles and cloudiness |
| Algae Control | Reduces algae formation |
| Filter Aid | Improves filtration efficiency |
| Application | Description |
|---|---|
| Clay Stabilizer | Stabilizes clay formations in drilling fluids |
| Drilling Fluid Additive | Prevents shale swelling and dispersion |
| Application | Description |
|---|---|
| Hair Care | Conditioning agent in shampoos and conditioners |
| Skin Care | Film-forming agent |
| Antistatic Agent | Reduces static electricity |
| Advantage | Description |
|---|---|
| High Cationic Charge | Rapid floc formation; effective at low dosages |
| Wide pH Range | Effective from pH 2 to 11 |
| High Efficiency | Low dosage requirement for effective results |
| Environmentally Friendly | Formaldehyde-free; biodegradable |
| Easy to Use | Liquid form; easy to dose; no dilution required |
| Versatile | Effective in various applications |
| Cost-Effective | Reduces overall treatment costs |
| Stable | Stable under normal storage conditions |
| Application | Typical Dosage (mg/L active product) |
|---|---|
| Drinking Water Treatment | 1 – 10 mg/L |
| Wastewater Treatment | 5 – 50 mg/L |
| Industrial Wastewater | 5 – 100 mg/L |
| Paper Industry (Retention Aid) | 0.1 – 1.0 kg/ton paper |
| Textile Wastewater | 10 – 50 mg/L |
| Sludge Dewatering | 1 – 10 kg/ton dry solids |
| Pool Clarifier | 1 – 5 mg/L |
Note: Dosage should be optimized by jar testing for each specific application and water quality.
| Parameter | Value |
|---|---|
| Acute Oral Toxicity (LD50, Rat) | > 5,000 mg/kg (low toxicity) |
| Acute Dermal Toxicity (LD50, Rabbit) | > 2,000 mg/kg |
| Acute Inhalation Toxicity | Low risk; may cause respiratory irritation |
| Skin Irritation | Mild irritant |
| Eye Irritation | May cause moderate eye irritation |
| Skin Sensitization | Not a sensitizer |
| Mutagenicity | Negative |
| Carcinogenicity | Not classified as a carcinogen |
| Reproductive Toxicity | Not classified as a reproductive toxin |
| Target Organs | Eyes, respiratory system, skin |
| Hazard Class | Category | H-Statement |
|---|---|---|
| Skin Irritation | Category 2 | H315 |
| Eye Irritation | Category 2 | H319 |
| Specific Target Organ Toxicity - SE | Category 3 | H335 |
Signal Word: WARNING
Hazard Pictograms: GHS07 (Exclamation Mark)
Hazard Statements (H-Codes):
| Code | Statement |
|---|---|
| H315 | Causes skin irritation. |
| H319 | Causes serious eye irritation. |
| H335 | May cause respiratory irritation. |
| Code | Statement |
|---|---|
| P261 | Avoid breathing dust/fume/gas/mist/vapors/spray. |
| P264 | Wash hands thoroughly after handling. |
| P271 | Use only outdoors or in a well-ventilated area. |
| P280 | Wear protective gloves/protective clothing/eye protection/face protection. |
| P302+P352 | IF ON SKIN: Wash with plenty of soap and water. |
| P305+P351+P338 | IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses if present. |
| P337+P313 | If eye irritation persists: Get medical advice/attention. |
| P501 | Dispose of contents/container in accordance with local regulations. |
| Route of Exposure | Action to Be Taken |
|---|---|
| Inhalation | Move to fresh air. If respiratory irritation persists, seek medical attention. |
| Skin Contact | Wash with plenty of soap and water. Remove contaminated clothing. If irritation persists, consult a physician. |
| Eye Contact | Rinse thoroughly with plenty of water for at least 15 minutes. Remove contact lenses. If irritation persists, seek medical attention. |
| Ingestion | Rinse mouth with water. Drink plenty of water. Do not induce vomiting. If large amount is swallowed, seek medical attention. |
| Parameter | Information |
|---|---|
| Fire Hazard | Not flammable; may decompose at high temperatures. |
| Hazards During Fire | Thermal decomposition produces toxic fumes including carbon monoxide, carbon dioxide, and nitrogen oxides. |
| Suitable Extinguishing Media | Water spray, CO₂, dry chemical powder, alcohol-resistant foam. |
| Special Protective Equipment | Self-contained breathing apparatus (SCBA), full protective clothing. |
| Parameter | Information |
|---|---|
| Personal Protection | Protective goggles, chemical-resistant gloves, coverall. |
| Ventilation | Increase ventilation; use local exhaust in confined spaces. |
| Containment | Absorb with inert material (sand, vermiculite). |
| Cleaning Methods | Collect with absorbent material. Avoid washing with water (spread). |
| Environmental Precautions | Prevent entry into drains, sewers, and water bodies. |
| Waste Disposal | Dispose of in accordance with local regulations. |
| Parameter | Information |
|---|---|
| Storage Conditions | Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). |
| Container Requirements | Keep tightly closed in original packaging. Protect from direct sunlight. |
| Materials to Avoid | Strong oxidizers, high molecular weight anionic polymers. |
| Shelf Life | 12-24 months (under proper storage conditions). |
| Stability Note | Stable under normal storage conditions; protect from freezing. |
| Packaging Options | 25 kg pails, 200 kg drums, 1000 kg IBC tanks. |
| Packaging Type | Quantity | Material |
|---|---|---|
| Plastic Pail | 25 kg | HDPE |
| Plastic Drum | 200 kg | HDPE |
| IBC Tank | 1000 kg | HDPE |
| Bulk Tanker | 20 – 25 tons | Stainless steel / HDPE |
| Parameter | Information |
|---|---|
| UN Number | Not applicable (not classified as dangerous goods) |
| Hazard Class | Not classified as hazardous for transport |
| Packing Group | Not applicable |
| ADR/RID | Not regulated |
| IMDG Code | Not regulated |
| IATA (Air) | Not regulated |
| Marine Pollutant | No |
| Transport Temperature | Ambient temperature; protect from freezing. |
| Region / Authority | Status |
|---|---|
| European Union (REACH) | Registered; industrial chemical. |
| USA (TSCA) | Listed. |
| Turkey (KKDIK) | Registered under chemical registration regulations. |
| NSF/ANSI 60 | Certified (select grades). |
| EPA | Approved for use in drinking water treatment. |
| Parameter | Information |
|---|---|
| Aquatic Toxicity | Low to moderate toxicity to aquatic organisms. |
| Biodegradability | Partially biodegradable. |
| Bioaccumulation | Not expected. |
| Mobility in Soil | Moderate. |
| Waste Disposal | Dispose of in accordance with local regulations. Incineration recommended for contaminated materials. |
| Name | Context |
|---|---|
| PolyDADMAC | Common abbreviation |
| Poly(DADMAC) | Chemical abbreviation |
| PDADMAC | Common abbreviation |
| Polyquaternium-6 | INCI name (cosmetics) |
| Diallyldimethylammonium Chloride Polymer | Chemical name |
| CAS | 26062-79-3 |
| EC | 203-973-8 |
| Property | Value |
|---|---|
| CAS Number | 26062-79-3 |
| EC Number | 203-973-8 |
| Molecular Formula | (C₈H₁₆NCl)ₙ |
| Appearance | Colorless to pale yellow viscous liquid |
| Density (20°C) | 1.10 – 1.20 g/cm³ |
| pH (1% solution) | 4.0 – 6.0 |
| Viscosity (25°C) | 5,000 – 10,000 cP |
| Water Solubility | Completely soluble |
| Charge Density | High (~6.2 meq/g) |
| Primary Uses | Water treatment, paper industry, textile, pool chemicals |
| Shelf Life | 12-24 months |
| UN Number | Not applicable |
| GHS Signal Word | WARNING |
CRITICAL NOTICES:
Cationic Nature: PolyDADMAC is a high charge density cationic polymer. It is effective in neutralizing negatively charged particles and colloids.
Incompatibility: Do not mix with high molecular weight anionic polymers (may cause precipitation). Avoid contact with strong oxidizers.
Dosing: Overdosing may cause charge reversal and restabilization of particles. Conduct jar tests to determine optimal dosage.
Storage: Protect from freezing. If frozen, thaw slowly at room temperature. Do not heat.
Eye and Skin Contact: May cause irritation. Use appropriate personal protective equipment.
pH Range: Effective over a wide pH range (2-11) due to permanent cationic charge.
Formaldehyde-Free: PolyDADMAC is formaldehyde-free and environmentally friendly.
Application Temperature: Effective at a wide range of temperatures; viscosity may increase at low temperatures.
BEST PRACTICE RECOMMENDATIONS:
Storage: Store in a cool, dry, and well-ventilated area. Keep containers tightly closed. Protect from direct sunlight and freezing.
Handling: Use protective gloves, goggles, and appropriate clothing. Avoid skin and eye contact. Ensure adequate ventilation.
Dilution: Dilute with water as needed for dosing. For best results, use dilute solutions within 24-48 hours.
Dosing: Use a chemical dosing pump for accurate and consistent dosing. Inject at the point of rapid mixing.
Compatibility: Check compatibility with other chemicals before mixing. Avoid mixing with anionic polymers unless formulated for such use.
Quality Control: Monitor viscosity, pH, and charge density to ensure consistent product quality.
Waste Management: Dispose of waste in accordance with local regulations.
LEGAL DISCLAIMER:
This Technical Data Sheet (TDS) is for informational purposes only and is prepared based on available technical data. The user is solely responsible for determining the suitability of the product for their specific application and for complying with all local, national, and international regulations. For complete safety, storage, handling, transport, waste, and regulatory compliance information, the official Safety Data Sheet (SDS/MSDS) provided by the manufacturer/supplier must be consulted. This document does not substitute professional advice. Jar testing is recommended for optimal dosage determination.