Description

7-Hydroxy-1,3-Naphthalenesulfonic Acid, Potassium Salt is a key organic intermediate and dye precursor with significant industrial utility. Its value lies in its dual functionality as a sulfonated aromatic compound, making it a versatile building block for synthesizing more complex molecules. This product is essential for manufacturers in the dye and pigment, pharmaceutical, and specialty chemical industries seeking reliable, high-purity intermediates for their production processes.

Application

• Dye and Pigment Intermediate: A crucial precursor for the synthesis of azo dyes, acid dyes, and other colorants, particularly those requiring good water solubility and lightfastness.
• Pharmaceutical Synthesis: Serves as a building block in the manufacture of certain active pharmaceutical ingredients (APIs) and diagnostic agents.
• Chemical Research & Development: Used in organic synthesis laboratories for developing new sulfonated compounds and studying reaction mechanisms.
• Specialty Surfactants: Can be utilized to create anionic surfactants with specific properties for niche industrial applications.
• Photographic Chemicals: Acts as a component in certain photographic developers and sensitizers.
• Corrosion Inhibitor Formulation: Employed in the production of specialty corrosion inhibitors for industrial water treatment systems.

Basic Information

Product Name	7-Hydroxy-1,3-Naphthalenesulfonic Acid, Potassium Salt
CAS No.	13846-08-7
Molecular Formula	C10H7KO5S
Molecular Weight	278.32 g/mol
Synonyms	Potassium 7-hydroxy-1,3-naphthalenedisulfonate; 1,3-Naphthalenedisulfonic acid, 7-hydroxy-, dipotassium salt; 7-Hydroxynaphthalene-1,3-disulfonic acid dipotassium salt; 7-Hydroxy-1,3-naphthalenedisulfonic acid potassium salt; K salt of 7-Hydroxy-1,3-NDSA; 7-Hydroxy-1,3-NDSA dipotassium salt; 7-Hydroxy naphthalene-1,3-disulfonate potassium
EINECS	Contact for details

Quality Control

Our 7-Hydroxy-1,3-Naphthalenesulfonic Acid, Potassium Salt is produced under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure it meets precise specifications for purity, identity, and composition. Certificates of Analysis (COA) documenting these results 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 compound is hygroscopic (moisture-sensitive); therefore, the container must be kept tightly sealed to prevent absorption of atmospheric moisture, which can affect product quality and handling properties.

Specification

Item	Specification
Appearance	Off-white to light yellow crystalline powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 2.0%
Sulfated Ash	Conforms
Heavy Metals (as Pb)	≤ 20 ppm

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