221716
Ammonium oxalate monohydrate
ACS reagent, ≥99%
Synonym(s):
Oxalic acid diammonium salt
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About This Item
Linear Formula:
(NH4)2C2O4 · H2O
CAS Number:
Molecular Weight:
142.11
UNSPSC Code:
12352300
NACRES:
NB.24
PubChem Substance ID:
EC Number:
238-135-4
Beilstein/REAXYS Number:
3759830
MDL number:
Assay:
≥99%, 99.0-101.0% (ACS specification)
Grade:
ACS reagent
Form:
crystalline powder, crystals or granules
grade
ACS reagent
Quality Level
vapor pressure
<0.1 hPa ( 20 °C)
assay
≥99%, 99.0-101.0% (ACS specification)
form
crystalline powder, crystals or granules
impurities
≤0.005% insolubles
ign. residue
≤0.02%
pH
6-7 (25 °C, 14.2 g/L)
mp
133 °C (dec.) (lit.)
anion traces
chloride (Cl-): ≤0.002%, sulfate (SO42-): ≤0.002%
cation traces
Fe: ≤2 ppm, heavy metals: ≤5 ppm (by ICP)
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
General description
Ammonium oxalate monohydrate is a diammonium salt of oxalic acid. Its refined crystal structure has been investigated by three-dimensional diffraction studies. Influence of bivalent [Mn(II), Co(II), Ni(II)] and trivalent cations [Fe(III), Cr(III)] impurities on the growth rates of ammonium oxalate monohydrate crystals has been described. Its space group and unit cell parameters have been analyzed by neutron diffraction studies. Its IR spectra have been compared with that of isolated coal-solubilizing agent (CSA).
Application
Ammonium oxalate monohydrate may be used in the preparation of tetramethylammonium oxalate.
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signalword
Warning
hcodes
Hazard Classifications
Acute Tox. 4 Oral - Eye Irrit. 2
Storage Class
13 - Non Combustible Solids
wgk
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
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A convenient method for preparation of quaternary ammonium salts.
Markowitz M.
The Journal of Organic Chemistry, 22(8), 983-984 (1957)
Yeonho Kim et al.
Chemistry (Weinheim an der Bergstrasse, Germany), 26(46), 10510-10518 (2020-03-27)
In this work, environmentally friendly photocatalysts with attractive catalytic properties are reported that have been prepared by introducing SnO2 quantum dots (QDs) directly onto ZnSe(N2 H4 )0.5 substrates to induce advantageous charge separation. The SnO2 /ZnSe(N2 H4 )0.5 nanocomposites could
Sina Matavos-Aramyan et al.
Free radical biology & medicine, 106, 158-167 (2017-02-19)
Three novel modified advanced oxidation process systems including ascorbic acid-, pro-oxidants- and ascorbic acid-pro-oxidants-modified Fenton system were utilized to study the disinfection efficiency on Cryptosporidium-contaminated drinking water samples. Different concentrations of divalent and trivalent iron ions, hydrogen peroxide, ascorbic acid
Global Trade Item Number
| SKU | GTIN |
|---|---|
| 675385-1G | 04061825768229 |
| 221716-100G | 04061838777485 |
| 221716-2.5KG | 04061832562766 |
| 221716-500G | 04061838777492 |