NUOSPERSE® W-39

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Description

NUOSPERSE® W-39 is an APE-free pigment dispersing agent manufactured by Elementis Specialties, Inc. It serves to disperse various pigments effectively in waterborne systems, aiding in achieving full color development and maximizing production output. Here's a closer look at its features and applications:

General Information: NUOSPERSE W-39 is designed to disperse pigments efficiently in waterborne systems while stabilizing the resulting dispersion to prevent re-flocculation and viscosity drift. It is low in VOC and free of alkylphenolethoxylates.

Chemical & Physical Properties:

Active Solids: 44%
Weight per Gallon: 8.8 lbs/gal
Specific Gravity: 1.05
Viscosity: 200-600 cps
VOC: 0.53 lbs./gal (US EPA Standard Test Method 24)

Applications: NUOSPERSE W-39 is recommended for various pigments including phthalo blue/green, naphthol, and quinacridone. It is compatible with most waterborne coatings vehicles and finds applications in decorative paints, industrial coatings, automotive coatings, inks, adhesives, and more.

Key Properties:

Rapid pigment wetting
Good flow at high pigment loading
Increased mill output
Maximum tinting strength development
Full chroma development
Long-term viscosity stability
Optimum initial gloss and gloss retention
Elimination of hard settling

Incorporation: NUOSPERSE W-39 should be added to a mill base prior to the addition of pigments.

Levels of Use: For coatings and inks where pigment is dispersed in a water-soluble resin, a 2% addition of NUOSPERSE W-39 on the mill base portion of the formula is recommended. In the manufacture of concentrated tinting colors, levels of 10.0% to 15% on pigment load are suggested.

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- Classification:
  - Specific target organ toxicity - repeated exposure, Category 2 (Lungs).
- Hazard Statements:
  - H373: May cause damage to organs (lungs) through prolonged or repeated exposure if inhaled.
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  - P260: Do not breathe dust.
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Product Overview:
- Product Name: WALOCEL™ CRT 10000 G
- Chemical Name: Sodium Carboxymethylcellulose
- Specification Number: 000000127502
- Previous Specified Material: 00160302
- Trademark: WALOCEL™ (Trademark of The Dow Chemical Company)
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1. Active Content (Dry Basis):
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  - Method: CE-55.4
  - Test Frequency: Audit basis
2. Substitution Degree:
  - Range: 0.82 — 0.95
  - Method: CE-28.4
3. Moisture Content (As Packaged):
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4. pH Value (1% Aqueous Solution):
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5. Total Salt Content (Dry Basis):
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  - Test Frequency: Audit basis
6. Viscosity (Brookfield, LVT, SP.3, 30 RPM, 1% Aqueous Solution, Dry Basis, 25°C):
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Product Overview:
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- Solubility at 25°C:
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  - Water in Solvent: 22.5 g/100 g (18.5 wt%)
Hansen Solubility Parameters:
- Dispersion (d): 15.0 (J/cm³)^(1/2)
- Polar (p): 3 (J/cm³)^(1/2)
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Product Overview:
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Manufacturer

Main Actions

Description

Files

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Application

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