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High Purity NNDiethylpphenylenediamine Sulfate CAS 6283632 China Factory Suppliers
N,N-Diethyl-p-phenylenediamine sulfate (DPD sulfate) is a high-performance organic compound engineered for use as a sensitive colorimetric reagent in advanced analytical chemistry. As a sulfate salt form of DPD, it provides exceptional stability and superior water solubility compared to free base alternatives. Its specialized molecular structure, featuring a phenylenediamine core with diethyl substitutions, enables rapid and selective oxidation reactions, making it indispensable for precise oxidant detection across various industrial and laboratory settings.
Primarily utilized in water treatment and environmental monitoring, this reagent is the gold standard for quantifying chlorine, bromine, ozone, and peroxide concentrations. When oxidized, it produces a distinct magenta-colored product, allowing for both immediate visual assessment and rigorous spectrophotometric quantification. From maintaining swimming pool hygiene to clinical chemistry and environmental science, DPD sulfate ensures accuracy and reliability in monitoring critical disinfectant levels and oxidant concentrations.
Detailed Parameters
| Chemical Name | N,N-Diethyl-p-phenylenediamine sulfate | CAS No. | 6283-63-2 |
|---|---|---|---|
| Molecular Formula | C10H16N2·H2SO4 | EINECS No. | 228-500-6 |
| Molecular Weight | 262.33 | Appearance | White or pink crystal |
| Assay | 96.0% min. | Sulfated Ash | 0.1% max. |
| Solubility | Soluble in water, insoluble in ethanol | Packing | 25kg/ fibre drum |
Key Advantages
Enhanced Stability
The sulfate salt form offers superior shelf life and resists oxidation during storage compared to other DPD formulations.
Rapid Reaction
High reaction kinetics enable immediate oxidant level determination, ideal for field testing and automated systems.
Extreme Sensitivity
Capable of detecting chlorine concentrations as low as 0.02 mg/L, ensuring high-precision analytical results.
High Absorptivity
The oxidation product exhibits high molar absorptivity, allowing for accurate low-level spectrophotometric measurements.
High Selectivity
Specifically targets free chlorine, minimizing interference from combined chlorines for more reliable water analysis.
Water Soluble
Excellent solubility in water ensures consistent reactions without the need for harmful organic solvents.
Product Gallery
Management Platforms
Quality Control
Strict adherence to purity standards with an assay of 96% min to ensure reagent reliability.
Process Optimization
Specialized synthesis to optimize the sulfate salt form for maximum stability and solubility.
Supply Chain
Secure packaging in 25kg fibre drums for safe international shipping and long-term storage.
Application Support
Expert guidance on integrating DPD sulfate into automated water analysis systems.
Inventory Mgmt
Efficient stock management to ensure a steady supply of critical chemical intermediates.
Regulatory Compliance
Full documentation provided including CAS and EINECS numbers for global compliance.
Investment Return Comparison
| Metric | Standard DPD Base | DPD Sulfate Form |
|---|---|---|
| Stability | Low / Prone to Oxidation | High / Long Shelf Life |
| Water Solubility | Moderate/Poor | Excellent / Rapid Dissolution |
| Detection Limit | Standard | Ultra-low (0.02 mg/L) |
| Interference | Higher Combined Cl interference | High Selectivity for Free Cl |
| Operational Cost | Higher (due to waste/instability) | Lower (due to efficiency) |
Frequently Asked Questions
DPD sulfate is the salt form of the compound, which significantly enhances its stability against premature oxidation and improves its solubility in water, making it more practical for commercial and field applications.
It acts as a colorimetric indicator. When added to water containing oxidants like free chlorine, it reacts quickly to form a magenta color. The intensity of this color corresponds to the concentration of the oxidant.
Yes, environmental scientists utilize DPD-based methods not only for chlorine but also for monitoring bromine, ozone, and peroxide concentrations due to its broad oxidant sensitivity.
While the sulfate form is more stable, it should be stored in a cool, dry place, protected from light and strong oxidizing agents, typically in the provided 25kg fibre drums.
Yes, beyond water treatment, it finds application in clinical chemistry specifically for the detection of occult blood in stool samples.
N,N-Diethyl-p-phenylenediamine sulfate demonstrates exceptional sensitivity, capable of detecting free chlorine concentrations as low as 0.02 mg/L.
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