Safety data sheet for Oxalic acid
CAS 144-62-7
This is the free preview of a draft SDS for Oxalic acid — Sections 1, 2 and 9, generated from the sources named below. The full 16-section draft, with your own company in Section 1, is $5 per document.
Typically documented by: Rust and stain removal, wood bleaching.
Draft safety data sheet — preview
Sections 1, 2, 9 of 16
- CAS number
- 144-62-7
- Molecular formula
- C2H2O4
- Molecular weight
- 90.03 g/mol
- Signal word
- Danger
Hazard classification
- GHS05 — Corrosive
- GHS07 — Health hazard — irritant
- H302: Harmful if swallowed.
- H312: Harmful in contact with skin.
- H318: Causes serious eye damage.
Section 1 — Identification
1.1 Product identifier
Product identifier: Oxalic Acid
Chemical name (IUPAC): oxalic acid
CAS number: 144-62-7
EC number: 205-634-3
REACH registration number: Not required for substances manufactured/imported <1 tonne/year; otherwise confirm the active registrant number before external issue.
IUPAC name: oxalic acid
PubChem CID reference: 971
Synonyms: oxalic acid; ethanedioic acid; Aktisal; Aquisal; Oxiric acid; Kyselina stavelova; Oxaalzuur; Oxalsaeure; Acidum oxalicum; Acide oxalique
1.2 Relevant identified uses of the substance or mixture and uses advised against
Relevant identified uses: Laboratory reagent, industrial processing aid, formulation component, and internal product-stewardship review subject to supplier confirmation.
Uses advised against: Consumer, medical, food, or any other use not covered by the supplier's label, technical instructions, or exposure scenario.
Section 2 — Hazards Identification
2.1 Classification of the substance or mixture
Classification: Acute Toxicity, Category 4 — Oral (Acute Tox. 4 (Oral)) [H302]
Classification: Acute Toxicity, Category 4 — Dermal (Acute Tox. 4 (Dermal)) [H312]
Classification: Serious Eye Damage, Category 1 (Eye Dam. 1) [H318]
2.2 Label elements
Signal word: Danger
GHS pictograms: GHS05 (Corrosion), GHS07 (Exclamation)
Hazard statement: H302: Harmful if swallowed.
Hazard statement: H312: Harmful in contact with skin.
Hazard statement: H318: Causes serious eye damage.
Precautionary statement: P264+P265: Wash hands thoroughly after handling. Do not touch eyes.
Precautionary statement: P280: Wear protective gloves, protective clothing, eye protection, face protection, and hearing protection.
Precautionary statement: P270: Do not eat, drink or smoke when using this product.
Precautionary statement: P305+P354+P338: IF IN EYES: Immediately rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing.
Precautionary statement: P302+P352: IF ON SKIN: Wash with plenty of water.
Precautionary statement: P301+P317: IF SWALLOWED: Get medical help.
Section 9 — Physical and Chemical Properties
9.1 Information on basic physical and chemical properties
Physical form: Solid
Appearance: ORTHORHOMBIC, CRYSTALS BEING PYRAMIDAL OR ELONGATED OCTAHEDRA
Odor: Odorless
Boiling point: Not available
Melting point: 189.5°C (373°F)
Flash point: Not available
Density: 1.90 @ 17 DEG/4 °C, ALPHA
Vapor pressure: 0 hPa at 20°C
Water solubility: Solubility in water, g/100ml at 20 °C: 9-10 (moderate)
Log Pow (log Kow): -0.81
Vapor density: 4.3 (air = 1)
Lower explosive limit: Not available
Upper explosive limit: Not available
Auto-ignition temperature: Not available
Viscosity: Not available
pH: Not available
9.2 Other information
Other information: Additional classification-supporting physical hazard data should be confirmed from the customer-specific product specification where required.
Sources
- PubChem — GHS classification
- PubChem — compound record
- PubChem — names and identifiers
- PubChem — regulatory information
- PubChem — toxicity data
- PubChem — transport information
Sections 1.3 and 1.4 are withheld here because the supplier and emergency contact blocks carry your own company details in the draft you buy. Every draft needs review by a competent person before it is issued.
Measured values for Oxalic acid, and where each one comes from
17 measured values for 6 properties, read from 4 public databases. On 3 properties the records differ. Each reading is shown with its own record. Follow any record to read the value at its source.
Melting point
3 records, 102 to 190 °C
Fixes the physical state at handling temperature, which the label and the transport class depend on.
- 189.5 °C (DECOMPOSES)
- Hazardous Substances Data Bank (HSDB)
- 215 °F (Sublimes)
- NIOSH Pocket Guide
Vapour pressure
4 records differ
The higher it is, the faster the substance evaporates into the workplace air at room temperature.
- 0.54 mm @ 105 °C
- Hazardous Substances Data Bank (HSDB)
- <0.001 mmHg
- NIOSH Pocket Guide
- <0.001 mmHg
- OSHA Occupational Chemical Database
- 0.54 [mm Hg] @105 °C
- PAC Chemical Database, U.S. Department of Energy
Vapour density
1 record
Above 1 the vapour sinks and collects in pits, sumps and low enclosed spaces.
Density
4 records differ
Needed to convert between mass and volume on the label, in transport papers and in a spill estimate.
- 1.90 @ 17 DEG/4 °C, ALPHA
- Hazardous Substances Data Bank (HSDB)
Solubility
4 records, each a different case
Determines spill behaviour, the right extinguishing media and the correct first-aid rinse.
- 100 G AQ SOLN SATURATED @ 15 °C CONTAINS 6.71 G; 100 G AQ SOLN SATURATED @ 20 °C CONTAINS 8.34 G; 100 G AQ SOLN SATURATED @ 25 °C CONTAINS 9.81 G
- Hazardous Substances Data Bank (HSDB)
- VERY SOL IN ETHANOL; SLIGHTLY SOL IN ETHER; INSOL IN BENZENE, CHLOROFORM, PETROLEUM ETHER
- Hazardous Substances Data Bank (HSDB)
- Water solubility of 220,000 mg/l at 25 °C
- Hazardous Substances Data Bank (HSDB)
Odour
1 record
Odour is a warning property only. Many substances are hazardous well below the concentration you can smell.
These are the public records read for Oxalic acid, published here unchanged. Where two records disagree, the draft you buy states the value and names the record behind it, so a reviewer can see what was chosen. Every draft needs review by a competent person before it is issued.
Get the full draft SDS for Oxalic acid
The draft covers all 16 sections under OSHA 29 CFR 1910.1200 and GHS Rev. 7, or the CLP EC 1272/2008 layout for the EU. Each draft arrives as an editable .docx and a PDF with an appendix naming the source of each value, in about 60 seconds. $5 per document, no account.