Dispersant NNO, or Sodium Naphthalene Sulfonate Formaldehyde Condensate, is a versatile chemical widely used across industries like textile dyeing, leather tanning, construction, agriculture, and pigment production. In China, a major global hub for chemical manufacturing, this anionic surfactant is supplied as a yellow-brown powder with the chemical formula C21H14Na2O6S2 (CAS No. 36290-04-7). It’s prized for its ability to disperse particles effectively, resist acidic and alkaline conditions, and dissolve easily in water. These properties make it valuable for tasks like ensuring even dye distribution in textiles, acting as a water reducer in concrete for construction, improving pesticide formulations in agriculture, and stabilizing pigments in paints, inks, or rubber production.
China’s suppliers, produce Dispersant NNO in large quantities to meet both domestic and international demand. The product comes in various grades tailored to specific needs. For example, in textiles, it helps with grinding and solubilizing disperse, vat, reactive, and acid dyes, ensuring vibrant and uniform colors. In construction, it serves as a superplasticizer, reducing water content in concrete mixes by up to 20–25%, which improves strength and workability. In agriculture, it’s used to create stable wettable powders for pesticides, enhancing their application efficiency. Some suppliers also emphasize eco-friendly formulations, meeting standards like ZDHC (Zero Discharge of Hazardous Chemicals) for industries prioritizing sustainability.
Pricing typically ranges from $1,500 to $2,000 per metric ton (FOB), depending on factors like purity (often 93% or higher), order volume, and packaging requirements. Minimum order quantities vary, with some suppliers accepting as little as 0.1 tons for trial orders, while others set thresholds at 1–5 tons for bulk purchases. Packaging is commonly in 25kg woven bags, though bulk options like jumbo bags (500–1,000kg) are available for large-scale buyers. Shipping terms, such as FOB, CIF, or DDP, can be negotiated, with ports like Qingdao, Shanghai, or Tianjin frequently used for export.
- Identify Your Needs: Determine the specific grade and quantity of Dispersant NNO required for your application. For example, textile manufacturers may need a high-purity grade for dyeing, while construction firms might prioritize cost-effective options for concrete additives. Check technical specifications like pH (typically 7–9), sodium sulfate content (5–18%), and dispersibility.
- Find Suppliers: Use B2B platforms to browse verified suppliers. These platforms list detailed product descriptions, including appearance (yellow-brown powder), solubility, and industry applications. Many suppliers also provide certifications, export history (some serve 60+ countries), and customer reviews to gauge reliability.
- Request Quotations: Contact multiple suppliers to compare pricing, minimum order quantities, and delivery terms. Most platforms allow you to send inquiries directly or use tools like “Request for Quotation” (RFQ). Specify your requirements, such as quantity, packaging, and destination port. For small orders or testing, ask if samples are available—some suppliers offer free or low-cost samples, though shipping fees may apply.
- Verify Supplier Credentials: Ensure the supplier is reputable by checking certifications (e.g., ISO, ZDHC) and platform verification status. Look for suppliers with export experience, as they’re more familiar with international shipping and documentation (e.g., Certificates of Analysis, Safety Data Sheets). Reading buyer feedback on platforms can also help assess reliability.
- Negotiate Terms: Discuss pricing, payment methods (e.g., T/T, L/C, PayPal), and shipping terms. For bulk orders, negotiate discounts or favorable terms like CIF (cost, insurance, freight) to your destination port. Clarify lead times—production and shipping typically take 7–20 days, depending on order size and location.
- Place the Order: Once terms are agreed upon, sign a purchase contract or issue a purchase order. Ensure it includes product specifications, quantity, price, delivery schedule, and quality standards. Some suppliers may require a deposit (e.g., 30%) before production.
- Arrange Shipping and Customs: Work with the supplier or a freight forwarder to handle logistics. You’ll need documents like a commercial invoice, packing list, bill of lading, and Certificate of Origin for customs clearance. Check import regulations in your country to ensure compliance with chemical import standards.
- Quality Assurance: Request a sample or pre-shipment inspection to verify product quality. Many suppliers provide test reports or allow third-party inspections (e.g., SGS) to confirm specifications like purity, pH, or sodium sulfate content.
Tips for a Smooth Purchase
- Start Small: If you’re new to a supplier, begin with a trial order (e.g., 0.1–1 ton) to test quality and service.
- Communicate Clearly: Use detailed inquiries to avoid misunderstandings, especially regarding product specifications or delivery timelines.
- Check Certifications: For eco-sensitive industries, ensure the Dispersant NNO meets environmental standards like ZDHC or REACH.
- Plan for Logistics Costs: Factor in shipping, customs duties, and local taxes, which can significantly affect total costs.
- Build Relationships: Establishing long-term ties with a reliable supplier can lead to better pricing and priority service for future orders.
Additional Considerations
- Quality Variations: Not all Dispersant NNO products are identical. Some suppliers offer grades with lower sodium sulfate content (e.g., 5% vs. 18%) for specific applications, which may cost more.
- Export Expertise: Suppliers with experience exporting to your region will better handle documentation and compliance with international regulations.
- Technical Support: Many suppliers provide guidance on integrating Dispersant NNO into your processes, such as dosage recommendations for concrete or dyeing.