Description

Calcium Naphthalene-2,6-Disulphonate is an organosulfonate salt derived from naphthalene disulfonic acid. This compound is valued for its role as a high-performance dispersant and surfactant in demanding industrial formulations. It is primarily utilized in industries requiring precise particle suspension and flow control, such as construction materials and specialty chemical manufacturing.

Application

• Concrete Superplasticizer: A key component in high-range water-reducing admixtures (HRWR) for producing high-strength, self-compacting, and flowable concrete.
• Ceramic & Clay Dispersant: Enhances the workability and stability of ceramic slips and clay bodies by preventing particle agglomeration.
• Dye & Pigment Industry: Acts as a dispersing agent for organic pigments and dyes, improving color strength and uniformity.
• Oilfield Chemicals: Used in drilling mud formulations to control rheology and disperse solid particles.
• Textile Auxiliaries: Serves as a levelling and dispersing agent in dyeing processes.
• Agricultural Formulations: Aids in the dispersion of active ingredients in wettable powders and suspension concentrates.
• Industrial Cleaners: Functions as a surfactant and dispersant in scale removal and cleaning formulations.

Basic Information

Product Name	Calcium Naphthalene-2,6-Disulphonate
CAS No.	93804-30-9
Molecular Formula	C20H12CaO12S4 or (C10H6O6S2)2Ca
Molecular Weight	604.66 g/mol
Synonyms	Calcium 2,6-Naphthalenedisulfonate; Calcium Naphthalene-2,6-Disulfonate; 2,6-Naphthalenedisulfonic Acid Calcium Salt; Naphthalene-2,6-disulfonic Acid Calcium Salt; Calcium Dinaphthalene Sulfonate; Dispersant SNF; Concrete Superplasticizer Monomer; PNS (Poly Naphthalene Sulfonate) Monomer
EINECS	Contact for details

Quality Control

Our Calcium Naphthalene-2,6-Disulphonate is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure consistent performance as a dispersant. Certificates of Analysis (COA) documenting key parameters such as purity, sulfonation degree, and calcium content are available upon request to support your quality assurance protocols.

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); the container must be kept tightly sealed to prevent absorption of atmospheric moisture, which can affect product performance.

Specification

Item	Specification
Appearance	Off-white to light yellow powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 95.0%
Calcium Content	6.0 - 7.5 %
Sulfate (as SO4)	≤ 1.0 %
Water Content	≤ 5.0 %
pH (1% Solution)	7.0 - 9.0

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