MilliporeSigma
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379743

Sigma-Aldrich

Ammonium oxalate monohydrate

≥99.99% trace metals basis

Synonym(s):
Oxalic acid diammonium salt
Linear Formula:
(NH4)2C2O4 · H2O
CAS Number:
Molecular Weight:
142.11
Beilstein:
3759830
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.23

Quality Level

Assay

≥99.99% trace metals basis

form

powder

impurities

≤100.0 ppm Trace Metal Analysis

mp

133 °C (dec.) (lit.)

SMILES string

OC(C(O)=O)=O.N.O.N

InChI

1S/C2H2O4.2H3N.H2O/c3-1(4)2(5)6;;;/h(H,3,4)(H,5,6);2*1H3;1H2

InChI key

MSMNVXKYCPHLLN-UHFFFAOYSA-N

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assay

≥99.99% trace metals basis

assay

28.0-30.0% (as NH<SUB>3</SUB>)

assay

≥99.5% (T)

assay

≥99.0%

form

powder

form

liquid

form

-

form

crystals

impurities

≤100.0 ppm Trace Metal Analysis

impurities

≤0.002% Carbon dioxide (CO2), ≤0.1 ppm Copper (Cu), ≤0.1 ppm Nickel (Ni), ≤0.2 ppm Iron (Fe), ≤0.2 ppm Lead (Pb), ≤0.2 ppm Manganese (Mn), ≤0.3 ppm Aluminum (Al), ≤0.3 ppm Calcium (Ca), ≤0.3 ppm Chromium (Cr), ≤0.3 ppm Gold (Au), ≤0.3 ppm Magnesium (Mg), ≤0.3 ppm Potassium (K), ≤0.3 ppm Sodium (Na), ≤0.3 ppm Tin (Sn), ≤0.3 ppm Titanium (Ti), ≤0.3 ppm Zinc (Zn), ≤0.5 ppm Chloride (Cl), ≤0.5 ppm Heavy metals (as Pb), ≤2 ppm Nitrate (NO3), ≤2 ppm Phosphate (PO4), ≤2 ppm Sulfate (SO4)

impurities

12.18%±0.10% total Kjeldahl nitrogen

impurities

≤0.005% Insoluble matter

mp

133 °C (dec.) (lit.)

mp

-72 °C

mp

190 °C (dec.) (lit.)

mp

>280 °C (dec.) (lit.)

Quality Level

100

Quality Level

300

Quality Level

100

Quality Level

200

Other Notes

Hydration may vary slightly

Pictograms

Exclamation mark

Signal Word

Warning

Hazard Statements

Hazard Classifications

Acute Tox. 4 Dermal - Acute Tox. 4 Oral - Eye Irrit. 2

Storage Class Code

13 - Non Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificate of Analysis

Enter Lot Number to search for Certificate of Analysis (COA).

Certificate of Origin

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