Overview
Dissolvine D-40 is a DTPA (diethylenetriaminepentaacetic acid) pentasodium salt supplied as a 40% active liquid chelating agent. It binds polyvalent metal ions such as iron, copper, and manganese across a broad pH range, preventing metal-catalyzed degradation, discoloration, and scale formation in aqueous formulations.
Compared with weaker chelants, Dissolvine D-40 delivers strong sequestering power at low dosage, making it well suited for bleaching, industrial cleaning, and process water applications where trace metal contamination affects product quality or process efficiency.
Specifications
| Active ingredient | ≥ 40.5 % |
| Appearance | Clear pale yellow liquid |
| Assay according to Fe-sequestering capacity | ≥ 40.0 % |
| Chelating value, CaCV | ≥ 80.5 mg CaCO₃/g |
| Color | ≤ 250 APHA |
| Density | ~ 1280 kg/m³ |
| pH, 1% w/v aqueous dilution | 11.0-12.0 |
| pH, 1% w/v dilution | 11.0-11.8 |
| Specific gravity, 25°C | 1.28-1.32 |
Characteristics
| Crystallization point | ≤ -15 °C |
| Miscibility with water | any desired ratio |
Key Benefits
- Broad pH stability: maintains chelating performance from acidic to alkaline conditions
- High sequestering capacity, effective at low use levels versus weaker chelants
- Compatible with peroxide and hydrosulphite bleaching systems
- Reduces metal-catalyzed decomposition and off-color formation
- Liquid form for easy metering and blending into process baths
Applications
- Pulp bleaching: stabilizer in peroxide and hydrosulphite bleaching systems
- Textile processing: stabilizer in scouring, bleaching, and dyeing baths
- Photographic industry: stabilizer in developing baths
- Industrial and institutional cleaning formulations
- Process water treatment for scale and corrosion control
Selection Guide
Choose Dissolvine D-40 when a formulation requires strong, broad-pH metal chelation at economical dosage, such as peroxide bleach stabilization or hard-water process baths. For food-contact or biodegradability-sensitive applications, alternative chelants (e.g., GLDA- or citrate-based) may be more appropriate. Our technical team can help compare grades and confirm dosage for your process.
Packaging and Shipping
Dissolvine D-40 is available in drum and IBC packaging with bulk supply and global shipping support. TDS, SDS, and COA are provided with each shipment; batch-specific documentation can be supplied on request.
FAQ
What is the active content of Dissolvine D-40?
Dissolvine D-40 is supplied at approximately 40.5% active DTPA pentasodium salt in aqueous solution.
Is Dissolvine D-40 compatible with peroxide bleaching?
Yes. It is widely used to stabilize peroxide and hydrosulphite bleaching systems by chelating trace metals that would otherwise catalyze oxidant decomposition.
What is the typical dosage range?
Dosage depends on the metal ion load and process conditions; typical use levels range from 0.05% to 0.5%. Contact us for application-specific recommendations.
Can you provide COA and SDS for each batch?
Yes, COA, SDS, and TDS are available for every shipment.
Do you support bulk supply and global shipping?
Yes, Dissolvine D-40 is available in drum and IBC packaging with worldwide shipping.
