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Ethane-1,2-diyl palmitate, also known as Ethylene Glycol Dipalmitate, is a chemical compound derived from the esterification of ethylene glycol and palmitic acid. It is a colorless to pale yellow liquid with a slight characteristic odor. Its molecular formula is C36H70O4, and it is a nonionic, non-volatile, and thermally stable compound.

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  • 624-03-3 Structure
  • Basic information

    1. Product Name: ethane-1,2-diyl palmitate
    2. Synonyms: ethane-1,2-diyl palmitate;Bispalmitic acid ethylene ester;Dipalmitic acid 1,2-ethanediyl ester;Dipalmitic acid ethylene ester;Ethylene glycol dihexadecanoate;2-hexadecanoyloxyethyl hexadecanoate;palmitic acid 2-hexadecanoyloxyethyl ester;Hexadecanoicacid, 1,2-ethanediyl ester
    3. CAS NO:624-03-3
    4. Molecular Formula: C34H66O4
    5. Molecular Weight: 538.88544
    6. EINECS: 210-826-5
    7. Product Categories: N/A
    8. Mol File: 624-03-3.mol
  • Chemical Properties

    1. Melting Point: 72°C
    2. Boiling Point: 535°C (rough estimate)
    3. Flash Point: 277.2°C
    4. Appearance: /
    5. Density: 0.8594
    6. Vapor Pressure: 6.97E-14mmHg at 25°C
    7. Refractive Index: 1.4760 (estimate)
    8. Storage Temp.: Sealed in dry,Room Temperature
    9. Solubility: N/A
    10. CAS DataBase Reference: ethane-1,2-diyl palmitate(CAS DataBase Reference)
    11. NIST Chemistry Reference: ethane-1,2-diyl palmitate(624-03-3)
    12. EPA Substance Registry System: ethane-1,2-diyl palmitate(624-03-3)
  • Safety Data

    1. Hazard Codes: N/A
    2. Statements: N/A
    3. Safety Statements: N/A
    4. WGK Germany:
    5. RTECS:
    6. HazardClass: N/A
    7. PackingGroup: N/A
    8. Hazardous Substances Data: 624-03-3(Hazardous Substances Data)

624-03-3 Usage

Uses

Used in Thermal Energy Storage Industry:
Ethane-1,2-diyl palmitate is used as a component of phase change materials (PCMs) for thermal energy storage. It serves as a heat storage medium that can absorb and release thermal energy during phase transitions, thus providing an efficient way to store and manage thermal energy in various applications, such as solar energy systems, building insulation, and temperature control systems.
The reason for its use in this application is due to its high heat of fusion, thermal stability, and non-corrosive nature, which make it an ideal candidate for thermal energy storage systems. Additionally, its non-flammable and non-toxic properties contribute to its safety and reliability in various industrial applications.

Flammability and Explosibility

Notclassified

Purification Methods

Crystallise the ester from *benzene/MeOH , diethyl ether/MeOHor Me2CO and dry it in a vacuum desiccator. It forms an inclusion compound with 28.2 mols of urea. [McGreer et al. J Am Chem Soc 74 3541 1952, Beilstein 2 H 373, 2 I 166, 2 II 338, 2 III 926, 2 IV 1169.]

Check Digit Verification of cas no

The CAS Registry Mumber 624-03-3 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 6,2 and 4 respectively; the second part has 2 digits, 0 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 624-03:
(5*6)+(4*2)+(3*4)+(2*0)+(1*3)=53
53 % 10 = 3
So 624-03-3 is a valid CAS Registry Number.
InChI:InChI=1/C34H66O4/c1-3-5-7-9-11-13-15-17-19-21-23-25-27-29-33(35)37-31-32-38-34(36)30-28-26-24-22-20-18-16-14-12-10-8-6-4-2/h3-32H2,1-2H3

624-03-3SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 17, 2017

Revision Date: Aug 17, 2017

1.Identification

1.1 GHS Product identifier

Product name 2-hexadecanoyloxyethyl hexadecanoate

1.2 Other means of identification

Product number -
Other names Hexadecanoic acid, 1,2-ethanediyl ester

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only. Uncategorized
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:624-03-3 SDS

624-03-3Downstream Products

624-03-3Relevant articles and documents

LATENT HEAT STORAGE USING RENEWABLE PHASE CHANGE MATERIALS

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Paragraph 0049; 0050; 0053, (2016/08/17)

A method of producing a diol diester, which includes reacting a fatty acid alkyl ester having 6 to 30 carbon atoms, an α,ω-alkanediol having n carbon atoms, wherein n is an integer from 2 to 22; and a basic transesterification catalyst, is provided. Use of the diol diesters as phase change materials is also provided.

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