Product Information
ApplicationOxalic acid dihydrate Suprapur®. CAS 6153-56-6, EC Number 205-634-3, chemical formula (COOH)₂ * 2 H₂O.
Biological Information
Physicochemical Information
Boiling point149 - 160 °C (1013 hPa) (decomposition)
Density1.65 g/cm3 (20 °C)
Flash point157 °C (decomposition)
Melting Point98 - 100 °C
pH value1.5 (10 g/l, H₂O)
Vapor pressure0.000312 hPa (25 °C)
Bulk density813 kg/m3
Solubility>100 g/l
Materials Information
Toxicological Information
LD 50 oralLD50 Rat 375 mg/kg
Safety Information according to GHS
Hazard Pictogram(s) Hazard Pictogram(s)
Hazard Pictogram(s)
Hazard Statement(s)H302 + H312: Harmful if swallowed or in contact with skin.
H318: Causes serious eye damage.
Precautionary Statement(s)P280: Wear eye protection.
P302 + P352: IF ON SKIN: Wash with plenty of soap and water.
P305 + P351 + P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
P313: Get medical advice/ attention.
Signal WordDanger
Storage class10 - 13 Other liquids and solids
WGKWGK 1 slightly hazardous to water
Relatively unreactive organic reagents should be collected in container A. If halogenated, they should be collected in container B. For solid residues use container C.
Safety Information
Hazard Symbols Hazard SymbolsHarmful
Categories of dangerharmful
R PhraseR 21/22
Harmful in contact with skin and if swallowed.
S PhraseS 24/25
Avoid contact with skin and eyes.
Product Usage Statements
Storage and Shipping Information
StorageStore at +15°C to +25°C.
Packaging Information
Transport Information
Declaration (railroad and road) ADR, RIDKein Gefahrgut
Declaration (transport by air) IATA-DGRNo Dangerous Good
Declaration (transport by sea) IMDG-CodeNo Dangerous Good
Supplemental Information
Assay (alcalimetric, calc. as dihydrate)≥ 99.5 %
Chloride (Cl)≤ 5000 ppb
Phosphate (PO₄)≤ 500 ppb
Sulfate (SO₄)≤ 2000 ppb
Ag (Silver)≤ 10 ppb
Al (Aluminium)≤ 20 ppb
As (Arsenic)≤ 1.0 ppb
Au (Gold)≤ 1.0 ppb
Ba (Barium)≤ 100 ppb
Be (Beryllium)≤ 1.0 ppb
Bi (Bismuth)≤ 1.0 ppb
Ca (Calcium)≤ 100 ppb
Cd (Cadmium)≤ 50 ppb
Co (Cobalt)≤ 5 ppb
Cr (Chromium)≤ 10 ppb
Cu (Copper)≤ 5 ppb
Fe (Iron)≤ 50 ppb
Ga (Gallium)≤ 1.0 ppb
Ge (Germanium)≤ 1.0 ppb
In (Indium)≤ 1.0 ppb
K (Potassium)≤ 200 ppb
Li (Lithium)≤ 5 ppb
Mg (Magnesium)≤ 20 ppb
Mn (Manganese)≤ 5 ppb
Mo (Molybdenum)≤ 5 ppb
Na (Sodium)≤ 100 ppb
Ni (Nickel)≤ 10 ppb
Pb (Lead)≤ 10 ppb
Pt (Platinum)≤ 1.0 ppb
Sb (Antimony)≤ 1.0 ppb
Sn (Tin)≤ 5 ppb
Sr (Strontium)≤ 100 ppb
Ti (Titanium)≤ 5 ppb
Tl (Thallium)≤ 1.0 ppb
U (Uranium)≤ 1.0 ppb
V (Vanadium)≤ 10 ppb
Zn (Zinc)≤ 20 ppb


Oxalic acid dihydrate SDS


Safety Data Sheet (SDS) 

Oxalic acid dihydrate Certificates of Analysis

Product Number PackagingSpecificationLot Number
1004890100 Plastic bottlePDF Specification Document

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