Description

Naphthenic Acid CAS NO 1338-24-5 is a complex mixture of carboxylic acids derived from petroleum, primarily composed of cyclopentane and cyclohexane derivatives. This versatile organic acid is a critical intermediate and additive valued for its excellent solubility, corrosion inhibition, and surfactant properties. It is essential for manufacturers in sectors such as metalworking, lubricants, wood preservation, and chemical synthesis who require a reliable, high-performance acidic component.

Application

• Metalworking & Corrosion Inhibitors: A key component in the formulation of metal naphthenates, used as driers in paints, varnishes, and inks, and as corrosion inhibitors in lubricating oils and greases.
• Wood Preservatives: Used to produce copper and zinc naphthenates, which are effective fungicides and insecticides for pressure-treating lumber and utility poles.
• Surfactants & Emulsifiers: Serves as a raw material for producing oil-soluble surfactants and emulsifiers used in specialty cleaning formulations and agricultural chemicals.
• Chemical Synthesis & Catalysis: Acts as an intermediate and catalyst in various organic synthesis processes within the petrochemical and specialty chemical industries.
• Rubber & Polymer Additives: Utilized as a processing aid and vulcanization activator in the production of synthetic rubber and other polymers.
• Fuel & Lubricant Additives: Functions as a detergent and dispersant additive in lubricating oils and fuels to prevent sludge formation.

Basic Information

Product Name	Naphthenic Acid
CAS No.	1338-24-5
Molecular Formula	Mixture (CnH2n-2O2)
Molecular Weight	Varies (Typically 180-350 g/mol)
Synonyms	Naphthenic Acids; Cyclohexanecarboxylic acid, mixtures; Petroleum naphthenic acids; Acid Oil; Naphthenate; Carboxylic acids, naphthenic; Cycloalkanecarboxylic acids; Naphthonic Acid
EINECS	215-662-8

Quality Control

Our Naphthenic Acid is produced and tested under a stringent quality management system to ensure batch-to-batch consistency and performance. We provide comprehensive Certificates of Analysis (COA) detailing key parameters such as acid value, saponification value, and viscosity. Our quality commitment aligns with industrial standards for chemical intermediates, and we support our clients with the documentation necessary for their supply chain and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from incompatible materials such as strong bases and oxidizing agents. Recommended storage temperature is between 15°C and 25°C. Keep container tightly sealed when not in use to minimize moisture absorption and oxidation.

Specification

Item	Specification
Appearance	Dark viscous liquid
Acid Value (mg KOH/g)	180 - 250
Saponification Value (mg KOH/g)	185 - 255
Viscosity @ 40°C (cSt)	Reported on COA
Water Content (Karl Fischer)	< 0.5 %
Color (Gardner)	< 12

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