Overview
Morwet D-400 is a powder-form anionic surfactant supplied by Nouryon, formulated as a sodium alkyl naphthalene sulfonate condensate (NSC). It is positioned as a cost-effective version of Morwet D-425, giving buyers a lower-cost option within the same dispersant family without changing the underlying chemistry. As one of the recommended international brand products in our auxiliary agent range, Morwet D-400 is supplied with supply chain resource support for formulators sourcing anionic surfactants for dispersion applications.
Specifications
| Appearance | Powder at 20°C |
| Moisture | ≤ 3 % |
| pH | 7.5-10.0 (5% in water) |
| Active content | ≥ 72.5 % |
| Salt content | ≤ 22.0 % |
Characteristics
| Foam Height according to Ross-Miles | Immediately: 70 mm; after 5 min: 45 mm (25°C, 0.05% in de-ionised water). Immediately: 35 mm; after 5 min: 25 mm (25°C, 0.05% in Standard Water D) |
| Surface Tension according to Du Noüy | 60 mN/m (25°C, 0.1%, DIN 53914) |
| Wetting power according to Draves | ≥ 5 min (25°C, 0.1%) |
Applications of Morwet D-400 in Dispersion Formulations
Morwet D-400 is used in dispersion applications, where its anionic surfactant chemistry supplies wetting and dispersing action in aqueous systems. Because it is supplied as a powder with active content of 72.5% minimum, formulators can dose this dispersant precisely into a formulation and adjust concentration based on the target level of dispersion performance.
Why Foam and Wetting Performance Matter for This Grade
The Ross-Miles foam height data for this product shows an initial foam height of 70 mm in de-ionised water, dropping to 45 mm after five minutes, with somewhat lower foam generation of 35 mm initial and 25 mm after five minutes in Standard Water D. This distinction is relevant for buyers whose process water hardness or composition differs from de-ionised conditions, since foam behavior can shift accordingly. The measured surface tension of 60 mN/m and a Draves wetting time of five minutes minimum give formulators a reference point for comparing this surfactant against other anionic dispersants under consideration for the same application.
Why Sourcing Consistency Matters for Buyers
Because active content, moisture, and salt content directly affect dosing accuracy and dispersion performance, formulators should confirm current specifications for this dispersant against the latest technical data sheet before scheduling a production run. A supplier that consistently delivers this material within its stated active content, moisture, and pH range reduces the need to re-qualify a formulation with every new batch.
This is particularly relevant for buyers who have standardized a formulation around this grade’s foam height, surface tension, and wetting power values, since any batch-to-batch drift in active content or moisture can shift dispersion and wetting behavior. Buyers should confirm current batch documentation against the latest technical data sheet before finalizing a production schedule.
What to Consider When Sourcing Morwet D-400
Buyers evaluating Morwet D-400 for the first time should confirm that its active content (72.5% minimum), moisture (3% maximum), and salt content (22.0% maximum) match their formulation requirements, and should compare these values against Morwet D-425 if cost and performance trade-offs between the two grades are being weighed. Requesting the current certificate of analysis alongside the safety data sheet is a practical way to confirm that a given batch matches the specifications listed above.
Packaging, moisture-sensitive storage requirements, and transport classification should also be confirmed directly with the supplier, since this is a powder-form surfactant with a defined moisture specification. Buyers sourcing this material for time-sensitive production schedules should discuss lead time and packaging requirements before finalizing an order.
General Handling and Storage Guidance
As with other powder-form anionic surfactants, this product should be stored in accordance with the supplier’s safety data sheet, typically in a cool, dry, well-ventilated area in sealed packaging to protect the material from moisture pickup, which could affect the stated moisture specification and downstream dispersion performance. Personnel handling this material should follow the personal protective equipment and handling procedures specified in the SDS.
Buyers should request and review the current safety data sheet for Morwet D-400 prior to receipt, and confirm that on-site storage conditions are compatible with keeping the powder dry and free from contamination. Proper inventory rotation and adherence to the stated shelf life help maintain the active content and performance characteristics described above.
Where to Source This Product
Thousands Chemicals supplies Morwet D-400 and related auxiliary agent products through our digital B2B marketplace, with supply chain resource support for formulators sourcing anionic surfactants for dispersion applications. Surfactant foam and wetting test methods, including the Ross-Miles and Draves procedures referenced above, are commonly documented against standards published by ASTM International. Our team can help confirm packaging, lead times, and technical documentation for your target application and order volume.
Documentation We Can Provide
For qualified buyers, we can provide the safety data sheet and, where available, a certificate of analysis for the specific batch of Morwet D-400 being quoted. Specifications listed on this page reflect the manufacturer’s published values; buyers should confirm current documentation before finalizing a purchase order.
FAQ
What is Morwet D-400?
Morwet D-400 is a powder-form anionic surfactant based on a sodium alkyl naphthalene sulfonate condensate (NSC), used in dispersion applications.
What is the active content of Morwet D-400?
Morwet D-400 has an active content of 72.5% minimum, with moisture of 3% maximum and salt content of 22.0% maximum.
How does Morwet D-400 compare to Morwet D-425?
Morwet D-400 is positioned as a cost-effective version of Morwet D-425 within the same dispersant family.
Can you provide technical documentation and bulk pricing for Morwet D-400?
Yes, technical data sheets and SDS documentation are available on request, and our team can provide bulk pricing and lead times based on your target volume and delivery location.
Get a Quote for Morwet D-400
Contact our team for pricing, documentation, and lead time on Morwet D-400. Our sourcing specialists can help confirm whether this dispersant matches your formulation requirements before you place an order.
