INDUSTRY COMPONENT

Chloride ions

Chloride ions are negatively charged chlorine atoms that serve as active components in polyaluminum chloride coagulants for industrial water purification.

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Component Specifications

Definition
Chloride ions (Cl⁻) are anionic components derived from chlorine that function as charge-neutralizing agents in polyaluminum chloride (PAC) coagulants. In industrial-grade PAC formulations, chloride ions help stabilize aluminum hydroxide polymers, enhance coagulation efficiency through charge neutralization of colloidal particles, and improve floc formation in water treatment processes. Their concentration typically ranges from 30-45% in commercial PAC products.
Working Principle
Chloride ions work through electrostatic charge neutralization in water treatment. When PAC is added to water, chloride ions help maintain the positive charge density on aluminum hydroxide polymers. These positively charged polymers attract and neutralize negatively charged colloidal particles (like clay, organic matter, and microorganisms) through charge neutralization, causing destabilization and subsequent aggregation into larger flocs that can be removed by sedimentation or filtration.
Materials
Industrial-grade chloride ions in PAC coagulants are typically derived from hydrochloric acid (HCl) or aluminum chloride (AlCl₃) sources. The chloride content must meet purity standards with minimal impurities like heavy metals (As < 0.0005%, Pb < 0.002%) and sulfate ions (SO₄²⁻ < 3.0%).
Technical Parameters
  • Density 1.19-1.33 g/cm³
  • Basicity 40-90%
  • pH Range 3.5-5.0
  • Solubility Fully soluble in water
  • Chemical Formula Cl⁻
  • Molecular Weight 35.45 g/mol
  • Al₂O₃ Content 28-31%
  • Concentration in PAC 30-45%
Standards
ISO 9001, ISO 14001, DIN 19603, AWWA B408

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Chloride ions.

chloride ions polyaluminum chloride PAC coagulant water treatment chemicals industrial coagulation charge neutralization flocculation water purification Chloride ions in Chemical Manufacturing

Parent Products

This component is used in the following industrial products

Industrial Grade Polyaluminum Chloride Coagulant

High-purity inorganic polymer coagulant for industrial water treatment.

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Engineering Analysis

Risks & Mitigation
  • Corrosion of metal equipment at high concentrations
  • Environmental toxicity if discharged untreated
  • Reduced coagulation efficiency at improper pH levels
  • Handling hazards due to acidic nature
FMEA Triads
Trigger: Insufficient chloride ion concentration
Failure: Reduced charge neutralization capacity leading to poor floc formation
Mitigation: Regular quality control testing and maintaining optimal PAC dosage
Trigger: High chloride levels in treated water
Failure: Corrosion of downstream equipment and pipes
Mitigation: Implement proper dosing controls and post-treatment monitoring
Trigger: Impurities in chloride sources
Failure: Contamination of treated water and reduced coagulation efficiency
Mitigation: Source high-purity raw materials and implement filtration systems

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance
±2% chloride ion concentration variation from specified values
Test Method
Potentiometric titration with silver nitrate (AgNO₃) per ASTM D512 and ISO 9297 standards

Procurement Evaluation Criteria

Not customer reviews or live demand data. These dimensions support RFQ preparation and supplier evaluation.

Technical documentation
4/5
Manufacturing capability
4/5
Inspection readiness
5/5
Supplier transparency
3/5

These scores are example evaluation dimensions, not real customer ratings, country-specific buyer feedback, or live inquiry activity.

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Frequently Asked Questions

What is the primary function of chloride ions in PAC coagulants?

Chloride ions stabilize aluminum hydroxide polymers and enhance charge neutralization of colloidal particles in water treatment processes.

How do chloride ions affect coagulation efficiency?

They maintain optimal positive charge density on PAC molecules, improving colloidal destabilization and floc formation rates.

What are typical chloride ion concentrations in industrial PAC?

Commercial PAC products contain 30-45% chloride ions by weight, depending on basicity and manufacturing process.

Can I contact factories directly?

Yes, each factory profile provides direct contact information.

Data Basis

CNFX manufacturer profiles, technical classification, publicly available product information, and ongoing plausibility checks.

Preliminary Technical Classification
This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

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