Description

Naphthalenesulfonic Acid, Polymer With Formaldehyde, Calcium Salt is a high-performance, water-soluble polymeric dispersant. This compound is valued for its exceptional ability to reduce the viscosity of solid suspensions and prevent particle agglomeration. It is a critical additive for industries requiring stable, high-solids slurries and efficient dispersion of pigments and fillers.

Application

• Primary dispersant and grinding aid in the production of construction materials, including concrete admixtures and cement grinding aids.
• Key component in pigment and dye dispersions for paints, coatings, inks, and textile applications.
• Stabilizing agent for agricultural formulations such as wettable powders and suspension concentrates (SCs).
• Used as a filler and clay dispersant in the paper and ceramics industries to improve product uniformity.
• Plasticizer and water-reducing agent in gypsum board and other building material production.
• Additive in oilfield chemicals for drilling mud and cementing applications.
• Dispersant for carbon black and other nanomaterials.

Basic Information

Product Name	Naphthalenesulfonic Acid, Polymer With Formaldehyde, Calcium Salt
CAS No.	37293-74-6
Molecular Formula	(C10H6O3S·CH2O)n·xCa
Molecular Weight	Polymeric substance (Variable)
Synonyms	Calcium polynaphthalenesulfonate; Calcium naphthalene sulfonate formaldehyde condensate; Naphthalenesulfonic acid-formaldehyde polymer calcium salt; NSF condensate; PNS-F (Poly naphthalene sulfonate formaldehyde); Cement superplasticizer; Dispersant S; Lomar® D (typical trade name); Dinaphthalenesulfonic acid polymer with formaldehyde calcium salt
EINECS	Contact for details

Quality Control

Our Naphthalenesulfonic Acid, Polymer With Formaldehyde, Calcium Salt is manufactured under a strict quality management system. Each batch undergoes rigorous testing to ensure consistent performance as a dispersant, including analysis of sulfonation degree, molecular weight distribution, and calcium content. Certificates of Analysis (COA) detailing key specifications are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive); keep the container tightly sealed when not in use to prevent caking and maintain product efficacy.

Specification

Item	Specification
Appearance	Brown to light brown powder
Identification (IR)	Conforms
pH (1% Aqueous Solution)	7.0 - 9.5
Solid Content	≥ 90.0 %
Ash Content (as CaO)	Contact for details
Viscosity Reduction	≥ 95 % (Standard test)
Moisture Content	≤ 5.0 %
Water Solubility	Completely soluble

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.