Antifreeze Analysis Instrument Factory

Antifreeze Analysis Instrument

Published by Changsha Friend Experimental Analysis Instrument Co., Ltd.

Introduction

Antifreeze (engine coolant) formulations require careful balance of freeze protection, corrosion inhibitors, and thermal stability. The Antifreeze Analysis Instrument provides laboratories and service centers with a comprehensive suite of tests—freeze point, corrosion evaluation, pH measurement, and inhibitor concentration—to verify coolant health and ensure engine protection under variable environmental conditions.

Core Testing Parameters

1. Freeze Point Determination

• Uses a controlled cooling bath and optical/turbidity sensors to detect the onset of crystallization.

• Cooling rate is maintained at 1 °C/min to prevent supercooling artifacts.

2. Corrosion Inhibitor Assessment

• Measures inhibitor concentration via titration or colorimetric reaction (e.g., borate, silicate levels).

• Ensures that metal protection additives remain within specified ranges.

3. pH Measurement

• Automated pH electrode integrated into the sample chamber for real-time monitoring.

• Verifies that pH stays within 8.5–11.0 to prevent acid corrosion.

4. Electrical Conductivity

• Indicates ionic contamination that might degrade inhibitor packages.

Instrument Design Highlights

• Multi-parameter Module: A single platform that sequentially performs freeze point, titration, pH, and conductivity tests without manual transfers.

• Precision Temperature Control: Peltier or cryostat-based cooling with ±0.1 °C stability.

• Automated Reagent Delivery: Micro-syringe pumps dispense titrants and buffers for inhibitor assays.

• Touchscreen Interface & Data Logging: Guides users through each test and archives results with timestamp, sample ID, and test conditions.

Industry Applications

• Automotive Service Outlets: Quick on-site analysis to top up or replace coolant.

• Fleet Maintenance: Scheduled preventive checks for heavy-duty vehicles in cold climates.

• Coolant Formulation R&D: Screening new additive chemistries for extended service life.

• Laboratory Quality Control: Batch-release testing for coolant manufacturers.

Best Practices

• Sample Conditioning: Degas samples at 25 °C for 10 minutes to remove air bubbles before titration.

• Reagent Calibration: Verify titrant concentration monthly against certified standards.

• Electrode Maintenance: Clean and store pH electrodes per manufacturer guidelines to prevent drift.

• Data Review: Compare sequential test runs to detect gradual inhibitor depletion or pH shifts.