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Sigma-Aldrich

Ammonium oxalate monohydrate

JIS special grade, ≥99.5%

Synonym(s):

Oxalic acid diammonium salt

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About This Item

Linear Formula:
(NH4)2C2O4 · H2O
CAS Number:
6009-70-7
Molecular Weight:
142.11
Beilstein/REAXYS Number:
3759830
EC Number:
238-135-4
MDL number:
MFCD00149694
UNSPSC Code:
12352302
PubChem Substance ID:
329747302

grade

JIS special grade

assay

≥99.5%

form

crystalline

availability

available only in Japan

pH

6.0-7.0 (25 °C, 14.2 g/L)

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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pictograms

Exclamation mark
GHS07

signalword

Warning

hcodes

H302,H319

Hazard Classifications

Acute Tox. 4 Oral - Eye Irrit. 2

wgk_germany

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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M. Sato
Phytochemistry, 19, 1939-1939 (1980)
Yuancun Qiao et al.
The journal of physical chemistry letters, 6(14), 2755-2760 (2015-08-13)
Negative linear compressibility (NLC) is a relatively uncommon phenomenon and rarely studied in organic systems. Here we provide the direct evidence of the persistent NLC in organic mineral ammonium oxalate monohydrate under high pressure using synchrotron X-ray powder diffraction, Raman
Electrochemiluminescence as a tool for microscopy at the nanoscale.
Lee A, et al.
Proceedings of SPIE, 13, 13-20 (2004)

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