Description
4,4′-Diaminodiphenylmethane (4,4′-MDA, Methylenedianiline) is a critical aromatic diamine precursor used in the production of methylene diphenyl diisocyanate (MDI) and polyurethane polymers. Tracking MDA concentrations in chemical synthesis and wastewater discharge is essential for process efficiency and environmental compliance.
Polyurethane Synthesis & Environmental Safety
Direct Raman optical testing provides fast, compound-specific quantification without hazardous chromatographic solvents or lengthy sample preparation.
Fast On-Site Spectroscopy vs. Laboratory Delays
The OndaVia 4,4′-MDA Analysis Kit (Analyte Code: B029) delivers rapid on-site optical testing in under 5 minutes.
| Specification Parameter | Consumable Kit Details |
|---|---|
| Target Chemical Analyte | 4,4′-Methylenedianiline (4,4′-MDA) (CAS 101-77-9) |
| Analyte Number | B029 |
| Analytical Methodology | Quantitative Raman Spectroscopy (QRS) |
| Analysis Turnaround | Under 5 minutes per test cycle |
| Packaging Format & Yield | 10 tests per box |
| Calibration Architecture | Factory pre-calibrated per production lot; zero toxic liquid standard preparation |
| Storage & Shelf Life | Store at room temperature; 12-month shelf life from date of manufacture |
| Compatible Hardware Systems | OPAL-100 Series Analyzers | OndaVia Analysis System |
| Instrument Platform | Order SKU | Validated Range | Primary Field Application |
|---|---|---|---|
| OPAL Benchtop | OV-OP-B029-PPM |
5 – 100 ppm | Polyurethane chemical manufacturing, wastewater monitoring, and QA/QC |
| OndaVia Analysis System | OV-PP-B029-PPM |
5 – 100 ppm | OndaVia Analysis System MDA process and wastewater analysis |
Kit Contents & Scope of Supply
- 10× 4,4′-Methylenedianiline (4,4′-MDA) (B029) Analysis Cartridges




