Product Name: Dinonylnaphthalenesulfonic Acid (DNNSA)
CAS Number: 25322-17-2
EC / EINECS No.: 246-841-9
Synonyms: DNNSA; Dinonylnaphthalenesulfonic acid
Specification: Acid value 60-64 mg KOH/g; Moisture <=1%; Density (25 deg C) 1.14-1.18 g/ml; pH 5.5-7.5
Appearance: Brown transparent liquid
Package: 200kgs/drum
Application: Used in lubricants and greases, coatings and paints, metalworking fluids, industrial cleaners, and oil-soluble sulfonate synthesis
Dinonylnaphthalene Sulfonic Acid(DNNSA) with CAS 25322-17-2
Dinonylnaphthalene Sulfonic Acid (DNNSA, CAS 25322-17-2) is an important industrial sulfonic acid widely used as a surfactant, dispersant, and emulsifier in various formulations. It is commonly supplied in solution form, referred to as Dinonylnaphthalenesulfonic acid solution, and is well-known for its excellent solubility in organic systems and high stability under harsh processing conditions.
Specification
Applications of Dinonylnaphthalenesulfonic Acid
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Lubricants & Greases – DNNSA is widely used to produce overbased sulfonates (e.g., calcium sulfonates) as detergents and rust inhibitors in lubricating oils.
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Coatings & Paints – Works as a dispersant and emulsifier, improving pigment stability and coating durability.
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Metalworking Fluids – Enhances lubrication and provides corrosion resistance.
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Industrial Cleaners – Effective as a surfactant in strong cleaning formulations.
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Chemical Intermediates – Used in synthesis of various oil-soluble sulfonates.
Why Choose Our DNNSA?
1. We supply high-purity Dinonylnaphthalenesulfonic acid CAS 25322-17-2 boasts a content exceeding 55%, exceeding the market average of 30%-50%.
2. Cationic surfactants offer higher surfactant activity.
3. Available in stock, with short lead times.
4. Quality comparable to the American brand king1050.
As a trusted wholesale Dinonylnaphthalenesulfonic acid supplier, we ensure consistent quality, competitive prices, and tailored technical support for industrial applications.
Packing
200kgs/drum, 16tons/20’container
FAQ
Q: What is the approximate amount of the catalyst for painting?
A: The total formula is 0.2–1.5% (based on the original liquid); the higher the addition amount, the faster the curing process, but excessive amounts will cause yellowing of the paint film, decreased water resistance, and poor stability of the system; many customers will make it into a closed amine salt to extend the storage period.
Q: Can it be used for food / cosmetics?
A: No, it is only for industrial coatings, lubricants, and oilfield additives; it is not in the list of food additives or cosmetic raw materials, and it is prohibited from coming into contact with food.
Q: Storage conditions?
A: Sealed and stored in a cool and ventilated place, at 5–35℃; away from alkalis, amines, and oxidants; avoid long-term high-temperature storage, as high temperatures will slowly change color and acid value drift; the recommended shelf life is 24 months.
Q: Sample policy?
A: Samples can be provided, and the sample fee can be refunded after placing an order for the bulk goods.
Sample delivery time: 1–3 working days for inventory preparation, 3–7 days for international delivery (depending on the destination country).
Q: Delivery time for bulk goods?
A: – Regular stock: 5–12 working days after receiving the deposit
– Customized specifications: 15–25 working days
Packaging: 25kg plastic barrel / 200kg iron barrel (with PE lining).
