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DIETHYL OXALATE

EC / List no.: 202-464-1
CAS no.: 95-92-1
Mol. formula: C6H10O4

Diethyl oxalate undergoes transesterification with phenol in the liquid phase over very efficient MoO3/TiO2 solid-acid sol-gel catalysts to form diphenyl oxalate. 
Diethyl oxalate undergoes Claisen condensation with active methylene group of ketosteroids to form glyoxalyl derivatives. 
Diethyl oxalate undergoes hydrogenation in the presence of high copper contented mesoporous Cu/SBA-15 catalysts to yield ethylene glycol.

Applications: 
Diethyl oxalate was used in microemulsion synthesis of ZnO nanoparticles. 
Diethyl oxalate was also used in the synthesis of sym-1,4-diphenyl-1,4-dihydro-1,2,4,5-polytetrazine.


Diethyl oxalate appears as a colorless liquid. 
Slightly denser than water and insoluble in water. 
Hence sinks in water. 
May irritate skin and mucous membranes; may be mildly toxic by ingestion; may emit irritating fumes in a fire. 
Vapors are much heavier than air. 
Used as a solvent for plastics and in the manufacture of perfumes and pharmaceuticals.


Use and Manufacturing
MANUFACTURE OF PHENOBARBITAL, 
ETHYLBENZYL MALONATE, 
TRIETHYLAMINE, & SIMILAR CHEMICALS; 
MANUFACTURE OF PLASTICS, 
DYESTUFF INTERMEDIATES; 
SOLVENT FOR CELLULOSE ESTERS
ORGANIC SYNTHESES, 
ESP IN MFR OF PHARMACEUTICALS; 
SOLVENT FOR ETHERS & RESINS
OLVENT FOR PERFUMES & FOR NATURAL & SYNTHETIC RESINS (CELLULOSE ESTERS); 
AGENT IN RADIO TUBE CATHODE FIXING LACQUERS; C
HEM INT FOR PHARMACEUTICALS, 
PLASTICS & DYES


Industry Uses
 Intermediates
 Processing aids, not otherwise listed
 agro chemical pesticide

Consumer Uses
 Apparel and footwear care products
 agro chemical pesticide


General Manufacturing Information
Industry Processing Sectors
 All other basic organic chemical manufacturing
 Pesticide, fertilizer, and other agricultural chemical manufacturing
 Plastic material and resin manufacturing


Chemical Properties    
colourless liquid

Uses:    
manufacture of phenobarbital, ethylbenzyl malonate, triethylamine, and similar chemicals, plastics, dyestuff intermediates. 
Solvent for cellulose esters, perfumes.

Production Methods    
Diethyl oxalate is produced via esterification of ethanol and oxalic acid. 
Diethyl oxalateis a preferred solvent for cellulose acetate and nitrate.

General Description    
A colorless liquid. 
Flash point 168°F. 
Slightly denser than water and insoluble in water. 
Hence sinks in water. 
May irritate skin and mucous membranes; may be mildly toxic by ingestion; may emit irritating fumes in a fire. Vapors are much heavier than air. 
Used as a solvent for plastics and in the manufacture of perfumes and pharmaceuticals.

Air & Water Reactions    
Insoluble in water.

Reactivity Profile    
Diethyl oxalate is an ester. 
Esters react with acids to liberate heat along with alcohols and acids. 
Strong oxidizing acids may cause a vigorous reaction that is sufficiently exothermic to ignite the reaction products. 
Heat is also generated by the interaction of esters with caustic solutions. 
Flammable hydrogen is generated by mixing esters with alkali metals and hydrides


 Diethyl Oxalate is a chemical intermediate used in the manufacture of API and various dyes. 
Diethyl oxalatecan be used as a solvent for a number of synthetic and natural resins. 
Diethyl oxalate (DEOX) is also used as a cost effective additive based in the dye-sensitized solar cells (DSSCs)

Formula: C6H10O4
Formula Weight: 146.14
Melting point: -41°
Boiling Point: 184-186°
Flash Point: 75°(167°F)
Density: 1.077
Refractive Index: 1.4100
Storage & Sensitivity: 
Moisture Sensitive. 
Store under Argon. 
Ambient temperatures.
Solubility: 
Miscible with alcohols, ether and other common organic solvents.

Applications
Diethyl oxalate is used to prepare active pharmaceutical ingredients (API), plastics and dyestuff intermediates. 
Diethyl oxalateis also used as a solvent for cellulose esters, ethers, resins, perfumes and lacquers for electronics. 
Diethyl oxalateis involved in the transesterification reaction with phenol to get dipheny oxalate. 
Diethyl oxalateis also involved in the Claisen condensation ketosteroids to prepare glyoxalyl derivatives. 
Further, it is used to prepare sym-1,4-diphenyl-1,4-dihydro-1,2,4,5-polytetrazine. 
In addition to this, it is utilized in the microemulsion synthesis of zinc oxide nanoparticles.


Solubility: completely sol ether, alcohol and acetone; slightly sol hot water. The solubility of dimethyl oxalate is similar, except that it is more soluble in water. The solubilities of the other esters are similar in organic solvents, but they are insoluble in water.


About Diethyl oxalate
Helpful information
Diethyl oxalate is registered under the REACH Regulation and is manufactured in and / or imported to the European Economic Area, at ≥ 1 000 tonnes per annum.

Diethyl oxalate is used in articles, by professional workers (widespread uses), in formulation or re-packing, at industrial sites and in manufacturing.

Consumer Uses
ECHA has no public registered data indicating whether or in which chemical products the substance might be used. ECHA has no public registered data on the routes by which Diethyl oxalate is most likely to be released to the environment.

Article service life
Other release to the environment of Diethyl oxalate is likely to occur from: outdoor use in long-life materials with low release rate (e.g. metal, wooden and plastic construction and building materials) and indoor use in long-life materials with low release rate (e.g. flooring, furniture, toys, construction materials, curtains, foot-wear, leather products, paper and cardboard products, electronic equipment).
Diethyl oxalate can be found in products with material based on: rubber (e.g. tyres, shoes, toys) and plastic (e.g. food packaging and storage, toys, mobile phones).

Widespread uses by professional workers
Diethyl oxalate is used in the following products: laboratory chemicals and polymers.
Diethyl oxalate is used in the following areas: building & construction work.
Other release to the environment of Diethyl oxalate is likely to occur from: indoor use (e.g. machine wash liquids/detergents, automotive care products, paints and coating or adhesives, fragrances and air fresheners), outdoor use resulting in inclusion into or onto a materials (e.g. binding agent in paints and coatings or adhesives) and indoor use in long-life materials with low release rate (e.g. flooring, furniture, toys, construction materials, curtains, foot-wear, leather products, paper and cardboard products, electronic equipment).
Formulation or re-packing
Diethyl oxalate is used in the following products: polymers, adhesives and sealants and inks and toners.
Release to the environment of Diethyl oxalate can occur from industrial use: formulation in materials, formulation of mixtures, in the production of articles and for thermoplastic manufacture.
Uses at industrial sites
Diethyl oxalate is used in the following products: polymers and laboratory chemicals.
Diethyl oxalate has an industrial use resulting in manufacture of another substance (use of intermediates).
Diethyl oxalate is used in the following areas: building & construction work, formulation of mixtures and/or re-packaging and scientific research and development.
Diethyl oxalate is used for the manufacture of: chemicals.
Release to the environment of Diethyl oxalate can occur from industrial use: in the production of articles, for thermoplastic manufacture, of substances in closed systems with minimal release and as an intermediate step in further manufacturing of another substance (use of intermediates).
Manufacture
Release to the environment of Diethyl oxalate can occur from industrial use: manufacturing of the substance.


APPLICATION AREAS
Diethyl Oxalate is used especially for production of pesticides and also as a starting material of so-called oxalate syntheses used in many areas, such as in pharmaceutical industry (production of steroids, barbiturates), in dyeing industry (Tartrazin dyestuff) and other specialised chemicals and in PU and plastic industry.

SEGMENTS
Agriculture
Organical synthesis
Manufacturing of dyestuffs
Pharmaceuticals

This Thermo Scientific brand product was originally part of the Alfa Aesar product portfolio. 
Some documentation and label information may refer to the legacy brand. 
The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific.

Applications
Diethyl oxalate is used to prepare active pharmaceutical ingredients (API), plastics and dyestuff intermediates. 
It is also used as a solvent for cellulose esters, ethers, resins, perfumes and lacquers for electronics. 
It is involved in the transesterification reaction with phenol to get dipheny oxalate. 
It is also involved in the Claisen condensation ketosteroids to prepare glyoxalyl derivatives. 
Further, it is used to prepare sym-1,4-diphenyl-1,4-dihydro-1,2,4,5-polytetrazine. 
In addition to this, it is utilized in the microemulsion synthesis of zinc oxide nanoparticles.

Solubility
Miscible with alcohols, ether and other common organic solvents.

Notes
Incompatible with strong oxidizing agents, reducing agents, acids and bases. Moisture sensitive.

Physical State : Liquid
Storage : Store at room temperature
Melting Point : -41° C (lit.)
Boiling Point : 185° C (lit.)
Density : 1.08 g/cm3 at 25° C

Description
Colorless unstable liquid; [Hawley]

Sources/Uses:
Used to make pharmaceuticals, plastics, dyes, and dyestuff intermediates; 
Also used as a solvent for cellulose esters, ethers, resins, perfumes, and lacquers for electronics;
Diethyl oxalate is a chemical used to pre-treat wood chips in order to refine and prepare them for further processing (such as obtaining wood pulp). 
Diethyl oxalate is also used as a starting material to synthesize Ethylene glycol (E890140) by means of catalytic hydrogenation.

Diethyl oxalate (DEOX)
​Diethyl Oxalate is a chemical intermediate used in the manufacture of API and various dyes. 
It can be used as a solvent for a number of synthetic and natural resins.

Diethyl oxalate (DEOX) is also used as a cost effective additive based in the dye-sensitized solar cells (DSSCs).

Due to its chemical characteristic, Diethyl Oxalate (DEOX) is miscible with alcohols, ether and other common organic solvents. 
Diethyl Oxalate is slightly soluble in water.


Diethyl oxalate is a Diester of ethyl alcohol and oxalic acid Diethyl oxalate uses and applications include: 
Solvent for cellulose esters and ethers, many natural and synthetic resins, paint stripping; 
radio-tube cathode fixing lacquers; 
perfumes; 
chelating agent; 
cleaner for polymeric residues; 
pigment dispersant; 
intermediate for organic synthesis, pharmaceuticals, barbiturates (CNS depressants), dyes; 
in food packaging adhesives
Suggested storage of Diethyl oxalate: 
Moisture-sensitive

FUNCTIONS
Resins,  Acid,  Dispersant 

INDUSTRY
Pharmaceutical,  Adhesives 

Diethyl Oxalate is a synthetic chemical intermediate. 
Ungraded products supplied by Spectrum are indicative of a grade suitable for general industrial use or research purposes and typically are not suitable for human consumption or therapeutic use.


INCI name: DIETHYL OXALATE
EINECS/ELINCS number: 202-464-1
Classification: Regulated
Restriction in Europe: III/3
Its functions (INCI)

Chelating : 
Reacts and forms complexes with metal ions that could affect the stability and / or appearance of cosmetic products

Hair conditioner : 
Leaves hair easy to comb, soft, soft and shiny and / or confers volume, lightness and shine

Masking : 
Reduces or inhibits the odor or basic taste of the product

Plasticiser : 
Softens and softens another substance that otherwise could not easily be deformed, dispersed or worked

Solvent : 
Dissolves other substances


IUPAC NAMES:
DIETHYL OXALATE
Diethyl Oxalate
Diethyl oxalate
diethyl oxalate
Diethyl oxalate
diethyl oxalate
diethylester
Diethyloxalat
Oxalic acid diethylester
oxalic acid diethylester


SYNONYMS:
DIETHYL OXALATE
95-92-1
Ethyl oxalate
Ethanedioic acid, diethyl ester
Diethyl ethanedioate
diethyloxalate
Oxalic acid, diethyl ester
Oxalic ether
Oxalic Acid Diethyl Ester
Diethylester kyseliny stavelove
Ethanedioic acid, 1,2-diethyl ester
Diethyl ester of oxalic acid
860M3ZWF6J
Diethyl oxalate, 99%
diethyl ethane-1,2-dioate
Ethyl oxalate (VAN)
HSDB 2131
EINECS 202-464-1
UN2525
Diethylester kyseliny stavelove [Czech]
BRN 0606350
diethyl ethaneioate
Oxalic acid diethyl
diethyl ethane-dioate
oxalic acid diethylester
1,2-diethyl ethanedioate
Diethyl oxalate, >=99%
4-02-00-01848 (Beilstein Handbook Reference)
Ethanedioic acid diethyl ester
CHEMBL3183226
Diethyl oxalate, analytical standard
Ethyl oxalate [UN2525] [Poison]
MCULE-5264218494
UN 2525
CAS-95-92-1
Diethyl oxalate, purum, >=99.0% (GC)
FT-0645510
5-pentyl-5-tetrahydropyran-2-yl-imidazolidine-2,4-dione
ETHANEDIOIC ACID,DIETHYL ESTER (DIETHYLOXALATE)
F1908-0115
Z940713540
AKOS BBS-00004457
Ethanedioic acid diethyl ester
ETHYL OXALATE
DIETHYL OXALATE
DIETHYL ETHANEDIOATE
RARECHEM AL BI 0114
OXALIC ACID DIETHYL ESTER
C2H5OCOCOOC2H5
Ceftriaxone Impurity 2
Oxalic acid diethyl ester Oxalic acid diethyl ester Oxalic acid diethyl ester
DIethlyoxalate
Ceftriaxone Impurity 5
Ceftriaxone Impurity 11
Diethyl ester of oxalic acid
Diethyl ester, oxalic acid
Diethylester kyseliny stavelove
diethylesterkyselinystavelove
dlethyloxalate
Oxalic ether
oxalicether
Diethyl oxate
DIETHYL OXALATE, STANDARD FOR GC
DIETHYL OXALATE, 99+%
DiethyloxalateForSynthesis
diethyl ethaneioate
DIETHYL OXALATE, 98.0% MIN
DIETHYL OXALATE, 99.0% MIN
Diethyloxaiate
Oxalsurediethylester
Diαthyloxalat
oxalic acid diethylester diethyl oxalate
DIETHYL OXALATE pure
GKSW
Diethyl oxalate, 99% 1KG
Diethyl oxalate, 99% 2.5KG
Diethyl oxalate, 99% 25GR
Diethyl oxalate, 99% 500GR
Dithyl oxalate
Diethyl oxalate purum, >=99.0% (GC)
Diethyl Oxalate [for SpectrophotoMetry]
Diethyl oxalat
Diethyleoxalate
Ethanedioicacid, 1,2-diethyl ester
DiethylOxalate>
DiethylOxalate[forSpectrophotometry]>
Diethyl oxalate fandachem
Diethyl oxalate (DEOX)
Diethyl oxalate ISO 9001:2015 REACH
95-92-1


 

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