CAS 5451-09-2: Comprehensive User Guide for Benzalkonium Chloride (BZK)
Table of Contents
1. Product Overview & Specifications
CAS 5451-09-2, commonly known as Benzalkonium Chloride (BZK), is a quaternary ammonium compound with the molecular formula C21H38ClN. This EPA-registered antimicrobial agent is available in multiple grades:
| Parameter | Pharmaceutical Grade | Industrial Grade | Cosmetic Grade |
|---|---|---|---|
| Purity | ≥99.5% | ≥98.0% | ≥99.0% |
| pH (1% Solution) | 6.0-7.0 | 5.5-7.5 | 6.2-7.2 |
| Solubility | Water, Alcohol, Ethylene Glycol | ||
2. Key Applications & Use Cases
Core Functional Areas:
- Healthcare: Surgical instrument sterilization (0.1-0.5% solutions)
- Water Treatment: Biofilm control at 10-50 ppm concentrations
- Personal Care: Preservative in shampoos (0.01-0.1% w/w)
3. Performance Comparison Table
| Competitor Product | BZK Efficacy | Contact Time | pH Stability |
|---|---|---|---|
| Chlorhexidine | 15% Higher log reduction | 2 minutes vs 5 minutes | Stable in 4-10 range |
4. Industry-Specific Implementation Examples
Pharmaceutical Manufacturing:
Used in cleanroom surface disinfection protocols with 70% alcohol-BZK blends, achieving 5-log microbial reduction within 3 minutes.
5. Verified Customer Success Stories
Case 1: Shanghai Municipal Water Co.
Challenge: Legionella contamination in cooling towers
Solution: 25 ppm BZK continuous dosing system
Outcome: 99.9% pathogen reduction within 72 hours
6. Request Customized Solutions
Contact our formulation experts for application-specific guidance:
info@vivalr.com
(86) 15866781826
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