Product Name: Dispersant NNO

Chemical Name: Sodium Naphthalene Sulfonate Formaldehyde Condensate (Sodium Methylene Bis-Naphthalene Sulfonate)

CAS Number: 36290-04-7

Primary Applications: High-temperature textile dye dispersant, agrochemical suspension agent, leather tanning auxiliary, and pigment stabilizer.

1. Product Overview

Dispersant NNO is a specialized, highly refined anionic surfactant engineered to prevent particle agglomeration in liquid solutions. While it belongs to the same chemical family as standard concrete superplasticizers (SNF), the NNO grade is explicitly polymerized and optimized for extreme dispersibility and zero-foaming performance.

By attaching a strong negative electrical charge to insoluble particles—whether they are synthetic dye molecules, raw pesticide powders, or heavy pigments—Dispersant NNO forces the particles to repel one another. This creates a highly stable, homogenous suspension that will not settle, clump, or break down, even under harsh thermal stress or in hard water environments.

2. Physical & Chemical Specifications

(Based on Green Agrochem’s Premium Grade manufacturing standards)

Parameter	Specification
Appearance	Light Yellow to Yellow-Brown Powder
Active Content	95.0% Min.
Dispersing Power	95.0% Min. (vs. Standard)
Sodium Sulfate (Na₂SO₄)	5.0% Max.
pH Value (1% aqueous solution)	7.0 – 9.0
Water-Insoluble Matter	0.05% Max.
Calcium & Magnesium Ions	0.4% Max.
Ionic Character	Anionic

3. Key Industrial Benefits

Because of its unique molecular structure, Dispersant NNO is the problem-solver of choice across several completely different manufacturing sectors:

For Textiles & Dyeing:

• Flawless Level Dyeing: It is an absolute necessity when working with disperse, vat, and reactive dyes. By keeping the dye particles microscopically small and evenly spread, it guarantees uniform color penetration without splotches, streaking, or edge-staining.
• High-Temperature Resilience: NNO thrives in the aggressive boiling vats required for dyeing synthetic fibers like polyester (often exceeding 130°C), where standard dispersants would chemically degrade and fail.
• Selective Affinity: In blended fabrics (like silk and wool), NNO can be used to direct the dye strictly to the target fiber, leaving the secondary fabric unstained.

For Agrochemicals (Pesticides & Herbicides):

• Eliminates Nozzle Clogging: When formulated into Wettable Powders (WP) or Water-Dispersible Granules (WDG), it keeps the active, water-hating chemical ingredients perfectly suspended in the farmer’s spray tank.
• Hard Water Immunity: It maintains total suspension stability even when mixed with the mineral-heavy, untreated well water commonly used on rural farms.

For Pigments, Leather, & Rubber:

• Leather Tanning: Acts as a vital auxiliary agent, driving chromium or vegetable tannins deep into the hide for a smooth, uniform leather finish.
• Latex Stabilization: Prevents rubber emulsions from prematurely coagulating during manufacturing and storage.

4. Recommended Dosage & Application Guidelines

Dispersant NNO is highly soluble in water of varying temperatures and pH levels.

• Textile Dye Baths: For standard high-temperature disperse dyeing, a dosage of 0.5 to 1.5 g/L in the dye bath is generally sufficient to maintain perfect suspension.
• Agricultural Formulations: Typically blended into dry pesticide powders at 2.0% to 6.0% of the total product weight. Note: Because NNO is purely a dispersant and not a wetter, formulators often pair it with a dedicated wetting agent for optimal leaf adhesion.
• Pigment Grinding: Add directly to the aqueous milling phase to drastically reduce mechanical grinding time and lower fluid viscosity.

5. Packaging & Storage

• Commercially packaged in 25 kg woven plastic or kraft paper bags fitted with a heavy-duty, moisture-proof inner liner.
• The powder is exceptionally hygroscopic. It will rapidly absorb moisture from humid air and form hard lumps if left exposed. Store exclusively in a cool, dry, and well-ventilated warehouse.
• Properly sealed bags have a stable shelf life of up to 24 months.

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