115-83-3

Basic information

• Product Name: Pentaerythrityl tetrastearate
• Synonyms: Octadecanoicacid,2,2-bis[[(1-oxooctadecyl)oxy]methyl]-1,3-propanediylester;pentaerythritetetra-n-stearate;STEARIC ACID TETRAESTER WITH PENTAERYTHRITOL;PE TETRASTEARATE;PENTAERYTHRITYL TETRASTEARATE;PENTAERYTHRITOL TETRASTEARATE;PENTAERYTHRITYL STEARATE;PENTAERYTHRITYL TETRASTEARATE (PRACT)
• CAS NO: 115-83-3
• Molecular Formula: C₇₇H₁₄₈O₈
• Molecular Weight: 1201.99
• EINECS: 204-110-1
• Mol File: 115-83-3.mol
• Article Data: 2

Chemical Properties

• Melting Point: 60-66 °C
• Boiling Point: 261℃
• Flash Point: 247℃
• Appearance: white beads
• Density: 0.94
• Refractive Index: 1.469
• CAS DataBase Reference: Pentaerythrityl tetrastearate(CAS DataBase Reference)
• NIST Chemistry Reference: Pentaerythrityl tetrastearate(115-83-3)
• EPA Substance Registry System: Pentaerythrityl tetrastearate(115-83-3)

Safety Data

• Safety Statements: 24/25
• Hazardous Substances Data: 115-83-3(Hazardous Substances Data)

Usage

Chemical Properties

white beads

Uses

Glycolube(R) P (Pentaerythrityl tetrastearate) is an effective lubricant for many polymer compounds in both extrusion and molding processes. It is recommended for use as a mold release agent in polycarbonate, thermoplastic polyesters and other engineering thermoplastics.

InChI:InChI=1/C77H148O8/c1-7-11-15-19-23-27-31-35-39-43-47-51-55-59-63-67-72(78)82-71-76(5,6)77(83-73(79)68-64-60-56-52-48-44-40-36-32-28-24-20-16-12-8-2,84-74(80)69-65-61-57-53-49-45-41-37-33-29-25-21-17-13-9-3)85-75(81)70-66-62-58-54-50-46-42-38-34-30-26-22-18-14-10-4/h7-71H2,1-6H3

Synthetic route

Pentaerythritol (115-77-5) + stearic acid (57-11-4) → pentaerythrityl Tetrastearate (115-83-3)

Conditions	Yield
With toluene-4-sulfonic acid at 175℃;
at 180℃;
With trifluoroacetic anhydride
With hypophosphorous acid at 80 - 240℃; under 9.75098 Torr; for 34h; Inert atmosphere; Dean-Stark;

Pentaerythritol (115-77-5) + Stearoyl chloride (112-76-5) → pentaerythrityl Tetrastearate (115-83-3)

Conditions	Yield
at 100℃; under 2 Torr;

Upstream product

• 115-77-5 Pentaerythritol 
• 112-76-5 Stearoyl chloride 
• 57-11-4 stearic acid 

Relevant articles and documents

A mesoporous SnO-γ-Al2O3nanocomposite prepared by a seeding-crystallization method and its catalytic esterification performances

A mesoporous SnO-γ-Al2O3 nanocomposite was synthesized by a seeding-crystallization method and investigated in catalytic esterification of pentaerythritol and stearic acid to produce pentaerythrityl tetrastearate. SnO-γ-Al2O3 prepared by conventional hydrothermal synthesis was also examined for comparison. The catalysts were studied using XRD, N2 adsorption, NH3-TPD, SEM, 27Al MAS NMR, pyridine-FTIR and CHNS analysis. According to the results of characterization, the seeding-crystallization method was helpful in reducing the size of the crystal particles, and improving the crystallinity and dispersity of crystal particles. The surface area, especially the external surface area, pore volume and size were increased, and the total acidity was increased. The strong acid sites were transformed into medium strong acid sites, and the strength of the medium strong and strong acid was weakened. Therefore, the formation of coke was retarded, and the pentaerythritol conversion, the pentaerythrityl tetrastearate selectivity and the catalytic stability were obviously improved.

PREPARATION OF TETRAESTER OF PENTAERYTHRITOL HAVING A LOW ACID VALUE AND A SMALL TIME-LAPSE CHANGE OF THE ACID VALUE

The present invention provides a preparation method of tetraester of pentaerythritol, which comprises the following steps of: (1) enabling pentaerythritol, a fatty acid, or ester thereof to react under existence of an acid catalyst; (2) neutralizing the acid catalyst by adding hydrotalcite to a reaction mixture that is resulted; and (3) filtering the resulted reaction mixture. According to the present invention, the preparation method can provide tetraester of pentaerythritol having a low acid value and a small time-lapse change of the acid value with great quality, and further, can be applied to technological mass production by being improved to be more economical and eco-friendly.COPYRIGHT KIPO 2019