OX0270

Oxalic Acid, Dihydrate

Meets ACS Specifications, Meets Reagent Specifications for testing USP/NF monographs GR ACS

• Synonym(s): Oxalic Acid, Dihydrate, Ethanedioic Acid, Dihydrate, Ethanedioic Acid
• Empirical Formula (Hill Notation): C₂H₂O₄ · 2H₂O
• CAS Number: 6153-56-6
• Molecular Weight: 126.07
• MDL number: MFCD00149102
• UNSPSC Code: 12352106
• EC Index Number: 205-634-3

Properties

• agency: meets USP/NF
• Quality Level: 200
• vapor pressure: 0.000312 hPa ( 25 °C)
• assay: 99.5-102.5%
• form: solid
• impurities: ≤0.005% Insoluble matter
• ign. residue: ≤0.01%
• pH: 1.5 (10 g/L in H₂O)
• bp: 149-160 °C/1013 hPa (decomposition)
• mp: 98-100 °C (Elimination of water of crystallisation)
• transition temp: flash point 157 °C (decomposition)
• solubility: >100 g/L
• density: 1.65 g/cm³ at 20 °C
• anion traces: chloride (Cl^-): ≤0.002%; sulfate (SO₄^2-): ≤0.005%
• cation traces: Ca: ≤0.001%; Fe: ≤2 ppm; N: ≤0.001%; heavy metals: ≤5 ppm
• shipped in: ambient
• storage temp.: room temp
• InChI: 1S/C2H2O4.2H2O/c3-1(4)2(5)6;;/h(H,3,4)(H,5,6);2*1H2
• InChI key: GEVPUGOOGXGPIO-UHFFFAOYSA-N

Description

Application

Meets ACS Specifications, Meets Reagent Specifications for testing USP/NF monographs GR ACS

Analysis Note

Assay: 99.5-102.5%
Calcium (Ca): 0.001% max
Chloride (Cl): 0.002% max
Heavy Metals (by ICP-OES): 5ppm max
Insoluble matter: 0.005% max
Iron (Fe): 2ppm max
Nitrogen compounds (as N): 0.001% max
Residue after ignition: 0.01% max
Substances darkened by hot sulfuric acid: To pass test
Sulfate (SO4): 0.005% max

Safety Information

• pictograms: GHS05,GHS07
• signalword: Danger
• hcodes: H302 + H312,H318
• pcodes: P264 - P270 - P280 - P301 + P312 - P302 + P352 + P312 - P305 + P351 + P338
• Hazard Classifications: Acute Tox. 4 Dermal - Acute Tox. 4 Oral - Eye Dam. 1
• Storage Class: 11 - Combustible Solids
• wgk_germany: WGK 1