Substance profile
Oxalic acid diethylester
Oxalic acid diethylester is colorless, oily liquid with an aromatic odor.
01 · Identification
What Oxalic acid diethylester is
Oxalic acid diethylester is colorless, oily liquid with an aromatic odor. It boils at 186 °C, melts at -38.5 °C, is miscible with water.
Under the GHS it carries the signal word Warning. It is classed as flammable agents - 2nd degree.
02 · Identifiers
Oxalic acid diethylester identifiers and molecular data
Oxalic acid diethylester CAS number and EC number
Oxalic acid diethylester molecular formula and molecular weight
Other names for Oxalic acid diethylester
- diethyl oxalate
03 · GHS classification
Oxalic acid diethylester hazard classification
Harmonised classification under CLP Annex VI. This is the legally binding classification in the EU; other jurisdictions may differ.
Oxalic acid diethylester pictograms and signal word
Oxalic acid diethylester hazard class and category
| Hazard class | Category | From code | Pictogram |
|---|---|---|---|
| Acute toxicity - oral GHS chapter 3.1 | Category 4 | H302 | GHS07 |
| Serious eye damage/eye irritation GHS chapter 3.3 | Category 2A | H319 | GHS07 |
Oxalic acid diethylester hazard statements (H-codes)
| Code | Hazard statement |
|---|---|
| H302 | Harmful if swallowed. |
| H319 | Causes serious eye irritation. |
This page lists only the codes assigned to Oxalic acid diethylester. The full reference lives on the hazard statements hub, the precautionary statements hub and the GHS pictograms hub.
Safety Data Sheet
Getting an SDS for Oxalic acid diethylester
A Safety Data Sheet is written for a product, not for a substance: the supplier of the grade you actually buy issues it, so two suppliers of Oxalic acid diethylest… issue two different sheets. That is why there is no single authoritative SDS for a substance to download — what there is, is the job of collecting the sheets for the products you hold and keeping them current as suppliers revise them.
04 · Precautionary statements
Oxalic acid diethylester precautionary statements
CLP Annex VI assigns 10 precautionary statements to Oxalic acid diethylester. They are grouped the way a label groups them: what to do before handling, what to do when something has already happened, how to store it and how to dispose of it.
Prevention
What to do before and during handling so the hazard never happens.
Response
What to do once exposure, spillage or fire has already happened.
Reading the notation. … is a blank the supplier fills in — not a truncated sentence.· [square brackets] mark a part printed only when it applies.
05 · Names in the regulation
Oxalic acid diethylester name in 23 EU languages
CLP Annex VI Part 3 is published in every language edition of the regulation, and the identification column is written out in each of them. Nothing below is translated by us: each line is the name as that edition prints it. Under Art. 18(2) the substance name from Annex VI is a lawful product identifier, so this is the wording to put on a label going to that market — and where the cell lists several designations, any one of them qualifies.
| Language | Name in CLP Annex VI Part 3 |
|---|---|
| Bulgarian български | диетилов естер на оксаловата киселина диетилов оксалат |
| Spanish español | Éster dietílico del ácido oxálico oxalato de dietilo |
| Czech čeština | diethylester šťavelové kyseliny diethyl-oxalát |
| Danish dansk | diethyloxalat ethyloxalat |
| German Deutsch | Oxalsäurediethylester Diethyloxalat |
| Estonian eesti | oblikhappe dietüülester dietüüloksalaat |
| Greek ελληνικά | διαιθυλεστέρας οξαλικού οξέος οξαλικό διαιθύλιο |
| English English | oxalic acid diethylester diethyl oxalate |
| French français | diéthylester de l'acide oxalique oxalate de diéthyle |
| Croatian hrvatski | dietil-ester oksalne kiseline dietil-oksalat |
| Italian italiano | dietile ossalato etile ossalato |
| Latvian latviešu | skābeņskābes dietilesteris dietiloksalāts |
| Lithuanian lietuvių | oksalo rūgšties dietilesteris dietiloksalatas |
| Hungarian magyar | oxálsav-dietil-észter dietil-oxalát |
| Maltese Malti | dietilester tal-aċidu ossaliku ossalat tad-dietil |
| Dutch Nederlands | oxaalzuur, diëthylester diëthyloxalaat |
| Polish polski | ester dietylowy kwasu szczawiowego szczawian dietylu |
| Portuguese português | éster dietílico de ácido oxálico oxalato de dietilo |
| Romanian română | ester dietilic al acidului oxalic oxalat de dietil |
| Slovak slovenčina | dietylester kyseliny šťaveľovej dietyl-oxalát |
| Slovenian slovenščina | dietilni ester oksalne kisline dietil oksalat |
| Finnish suomi | oksaalihappodietyyliesteri dietyylioksalaatti |
| Swedish svenska | oxalsyradietylester dietyloxalat |
All 23 language editions of Annex VI carry this entry. Irish is the twenty-fourth official EU language and has no line here for a different reason: no consolidated CLP text has ever been published in Irish, so there is no Irish edition of Annex VI to quote a name from. Source: consolidated CLP, CELEX 02008R1272, language editions. © European Union, https://eur-lex.europa.eu — only the electronic Official Journal of the European Union is authentic.
06 · Label elements
Oxalic acid diethylester GHS label elements
Everything CLP Annex VI fixes for Oxalic acid diethylester, laid out the way it appears on a label. The greyed lines are the parts only the supplier can fill in.
Warning
Oxalic acid diethylester
- Harmful if swallowed.
- Causes serious eye irritation.
- Wash … thoroughly after handling.
- Do not eat, drink or smoke when using this product.
- Wear protective gloves/protective clothing/eye protection/face protection/hearing protection/…
- IF SWALLOWED:
- IF IN EYES:
- Call a POISON CENTER/doctor/… if you feel unwell.
- Get medical advice/attention.
- Rinse mouth.
- If eye irritation persists:
- Remove contact lenses, if present and easy to do. Continue rinsing.
Supplier name, address and telephone number· Product identifier·Nominal quantity
Need this as an actual label? Open Oxalic acid diethylester in the GHS label constructor →
07 · Health hazards
Oxalic acid diethylester health hazards and exposure limits
Oxalic acid diethylester hazard summary
A strong skin and mucous membrane irritant; [Hawley] An eye irritant; [eChemPortal: ERMA; ESIS] An irritant; [MSDSonline]
Source: Haz-Map, Information on Hazardous Chemicals and Occupational Diseases
08 · Physical and chemical properties
Oxalic acid diethylester properties
Every value is shown with the conditions it was measured under and the source it came from. Where sources disagree, all values are listed rather than one being picked — the difference is usually a different form of the substance, not an error.
Oxalic acid diethylester boiling point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Boiling point | 185.7 °C (366.3 °F) | at 760 mmHg | HSDB |
| 185.4 °C (365.7 °F) | at 760 mmHg | DOE PAC |
Oxalic acid diethylester melting point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Melting point | -38.5 °C (-37.3 °F) | HSDB | |
| -40.6 °C (-41.1 °F) | DOE PAC |
Oxalic acid diethylester density
| Property | Value | Conditions | Source |
|---|---|---|---|
| Density | 1.0785 g/cm³ | at 20 °C | HSDB |
| 1.079 g/cm³ | at 20 °C | DOE PAC |
Oxalic acid diethylester solubility
| Property | Value | Conditions | Source |
|---|---|---|---|
| Solubility | SPARINGLY SOL IN WATER WHICH DECOMP IT GRADUALLY; MISCIBLE WITH USUAL ORG SOLVENTS | HSDB | |
| SOL IN ALL PROPORTIONS IN ALCOHOL, ETHER, ACETONE | HSDB | ||
| MISCIBLE WITH ETHYL ACETATE | HSDB |
Oxalic acid diethylester vapor pressure
| Property | Value | Conditions | Source |
|---|---|---|---|
| Vapor pressure | 1 mmHg | at 47 °C | HSDB |
| 0.41 mmHg | Haz-Map |
Oxalic acid diethylester flash point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Flash point | 75.56 °C (168 °F) | HSDB |
Oxalic acid diethylester vapor density
| Property | Value | Conditions | Source |
|---|---|---|---|
| Vapor density | 5.04 (air = 1) | HSDB |
Values compiled from PubChem Laboratory Chemical Safety Summary. Temperatures converted to Fahrenheit for reference.
09 · Fire and explosion
Oxalic acid diethylester fire and explosion behaviour
These are descriptions rather than measured values, so they are kept out of the table above and quoted here with the source that reported them.
Oxalic acid diethylester fire potential
MODERATE WHEN EXPOSED TO HEAT OR FLAME
Source: Hazardous Substances Data Bank (HSDB)
Fire and explosion
IN PROCESS VESSELS, DRYING OVENS, ETC WHICH OPERATE AT ELEVATED TEMP, SUFFICIENT VAPOR MAY BE EVOLVED FROM ANY OF THE ESTERS TO FORM AN EXPLOSIVE MIXT WITH AIR. /ESTERS/
Source: HSDB
10 · Handling and storage
Oxalic acid diethylester storage and handling
Oxalic acid diethylester storage conditions
STORAGE TANKS CONTAINING FLAMMABLE ESTERS SHOULD BE SITUATED IN MOUNDED COMPOUND CONSTRUCTED TO RETAIN MAX QUANTITY OF LIQ THAT COULD ESCAPE FROM TANKS. /ESTERS/
Source: Hazardous Substances Data Bank (HSDB)
Oxalic acid diethylester reactivity
ETHYL 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
Source: CAMEO Chemicals
Planning storage for a mix of chemicals? Check Oxalic acid diethylester in the storage compatibility matrix →
11 · Questions
Oxalic acid diethylester — frequently asked questions
What is the CAS number of Oxalic acid diethylester?
The CAS number of Oxalic acid diethylester is 95-92-1. Its EC number is 202-464-1.
What does a Oxalic acid diethylester label have to show?
Under CLP Annex VI the label for Oxalic acid diethylester carries the pictogram Exclamation mark and the signal word is Warning.
Is Oxalic acid diethylester flammable?
CLP Annex VI assigns Oxalic acid diethylester no flammability hazard class. That is not a statement that it cannot burn: the harmonised list only records the hazards that were assessed for it. The flash point reported for it is 75.56 °C (168 °F) (HSDB).
Is Oxalic acid diethylester a carcinogen?
CLP Annex VI records no harmonised carcinogenicity classification for Oxalic acid diethylester. Annex VI is a list of agreed classifications, not a list of substances found safe, so this is an absence of a classification rather than a clean bill of health.
What is the boiling point of Oxalic acid diethylester?
The boiling point reported for Oxalic acid diethylester is 185.7 °C (366.3 °F), at 760 mmHg (HSDB).
What is the melting point of Oxalic acid diethylester?
The melting point reported for Oxalic acid diethylester is -38.5 °C (-37.3 °F) (HSDB).
How should Oxalic acid diethylester be stored?
STORAGE TANKS CONTAINING FLAMMABLE ESTERS SHOULD BE SITUATED IN MOUNDED COMPOUND CONSTRUCTED TO RETAIN MAX QUANTITY OF LIQ THAT COULD ESCAPE FROM TANKS. /ESTERS/ (Hazardous Substances Data Bank (HSDB))
Nearby
Substances next to Oxalic acid diethylester
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