Description

Pentaerythritol Tetra(C5-C18) Carboxylate, Linear and Monomethyl-Branched Carboxylic Acid Residue, Average Carbon Number >=7 is a high-purity synthetic ester derived from pentaerythritol and a defined mixture of linear and monomethyl-branched C5-C18 carboxylic acids. This compound is valued for its excellent thermal stability, low volatility, and versatile solvency properties, making it a critical performance additive and base fluid. It is primarily utilized in the formulation of high-performance lubricants, synthetic greases, plasticizers, and functional fluids. The controlled molecular structure with an average carbon chain length of 7 or greater ensures consistent performance and compatibility in demanding industrial applications.

Application

• High-Temperature Synthetic Lubricants & Greases: Acts as a base oil or thickener component, offering superior oxidation resistance and thermal stability for aviation, automotive, and industrial machinery.
• Polymer & Resin Plasticizers: Imparts flexibility and low-temperature properties to PVC, polyurethanes, and other specialty polymers without excessive migration.
• Functional Fluid Formulations: Serves as a key ingredient in hydraulic fluids, heat transfer fluids, and dielectric fluids where fire resistance and longevity are required.
• Metalworking & Rolling Oils: Used as a lubricity additive and carrier for extreme pressure (EP) additives in cutting, grinding, and stamping operations.
• Cosmetic & Personal Care Esters: Functions as an emollient and texture enhancer in high-end skincare products, leveraging its purity and skin-feel characteristics.
• Specialty Solvents & Carrier Fluids: Employed in coatings, inks, and agrochemical formulations due to its solvating power and low environmental impact.

Basic Information

Product Name	Pentaerythritol Tetra(C5-C18) Carboxylate, Linear and Monomethyl-Branched Carboxylic Acid Residue, Average Carbon Number >=7
CAS No.	68987-94-0
Molecular Formula	Mixture (C5-C18 Carboxylic Acid Esters of Pentaerythritol)
Molecular Weight	~800 - 1200 g/mol (Average)
Synonyms	Pentaerythritol Tetraester; Pentaerythritol Tetracarboxylate; Pentaerythritol Ester of C5-C18 Acids; PE Tetraester; Synthetic Ester Oil; Pentaerythritol Fatty Acid Ester; Lubricant Ester Base; Plasticizer Ester
EINECS	Contact for details

Quality Control

Our Pentaerythritol Tetra(C5-C18) Carboxylate is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing to ensure it meets precise specifications for acid value, hydroxyl value, viscosity, and color. Certificates of Analysis (COA) are provided with every shipment, detailing key parameters to guarantee batch-to-batch consistency and performance reliability for your formulations.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This product is easily oxidized and should be stored under an inert atmosphere (e.g., nitrogen blanket) for long-term storage to maintain purity and prevent degradation. Keep away from strong oxidizing agents and heat sources.

Specification

Item	Specification
Appearance	Clear, Colorless to Pale Yellow Liquid
Identification (IR)	Conforms to Structure
Acid Value (mg KOH/g)	≤ 1.0
Hydroxyl Value (mg KOH/g)	≤ 10.0
Viscosity @ 40°C (cSt)	30 - 50
Pour Point (°C)	≤ -30
Water Content (Karl Fischer)	≤ 0.05%

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