oxalic acid

C2H2O4

CAS144-62-7

Warning

Consulting for oxalic acid

Our experts support you with application, dosage, and compliance.

Request Consultation

Identification

CAS Number: 144-62-7
EC Number: 205-634-3
UN Number: 3261
Index Number: 607-006-00-8
PubChem CID: 971

Physical-chemical properties

Molecular Formula: C2H2O4
Molar Mass: 90.03 g/mol
IUPAC Name: oxalic acid

Chemical Identifiers

InChI: InChI=1S/C2H2O4/c3-1(4)2(5)6/h(H,3,4)(H,5,6)
InChI Key: MUBZPKHOEPUJKR-UHFFFAOYSA-N

Overview

oxalic acid (CAS: 144-62-7) is a chemical compound widely used in industry. The molecular formula is C2H2O4. The molar mass is 90.03 g/mol.

Safety & Classification

Warning

Classification:

Acute Tox. 4 *; Acute Tox. 4 *

GHS Pictograms

Exclamation Mark

GHS07

Harmful. May cause irritation, allergic reactions, or drowsiness.

HHazard Statements (H-Statements)

Describe the nature and severity of the hazard

H312

Harmful in contact with skin.

H302

Harmful if swallowed.

Classification according to CLP Regulation (EC) No 1272/2008. The complete list of hazard and precautionary statements can be found in the Safety Data Sheet (SDS).

First Aid Measures

Skin Contact

Harmful

Measures if substance contacts the skin

First Aid Actions

+P302IF ON SKIN:
+P352Wash with plenty of water.
+P361Take off immediately all contaminated clothing.
+P313Get medical advice/attention.

Related hazard statements:

H312

Ingestion

Harmful

Measures if substance is accidentally swallowed

First Aid Actions

+P301IF SWALLOWED:
+P330Rinse mouth.
+P331Do NOT induce vomiting.
+P310Immediately call a POISON CENTER/doctor.

Related hazard statements:

H302

General Measures

Emergency 112 | Poison Control: +49 30 19240 (DE), +33 1 45 42 59 59 (FR), +31 30 274 88 88 (NL)

First aid measures are based on CLP classification and associated P-statements. They do not replace the Safety Data Sheet (SDS). In case of emergency, always consult the full SDS and a physician.

Transport (ADR)

UN Number	3261
ADR Class	8
Packing Group	III
Tunnel Code	E
Proper Shipping Name	Oxalsäure, wasserfrei, fest
Marine Pollutant	No

Frequently Asked Questions

What is oxalic acid?

oxalic acid (CAS 144-62-7) is a chemical substance with the formula C2H2O4 used in various industrial applications.

What are the properties of oxalic acid?

oxalic acid has a molar mass of 90.03 g/mol. It is classified as Acute Tox. 4 *; Acute Tox. 4 *. See the technical data above for more details.

How to store oxalic acid safely?

oxalic acid should be stored according to the Safety Data Sheet instructions. Follow the GHS labeling and keep the substance in a cool, dry and well-ventilated place.

Is oxalic acid dangerous?

oxalic acid carries the signal word "Warning". 1 GHS pictograms apply. Always follow the safety instructions in the data sheet.

Where can I buy oxalic acid?

You can order oxalic acid (CAS 144-62-7) from OYSI. We deliver across Europe and offer technical consulting as well as complete compliance documentation.