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221716

Sigma-Aldrich

Ammoniumoxalat Monohydrat

ACS reagent, ≥99%

Synonym(e):

Oxalsäure Diammoniumsalz

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About This Item

Lineare Formel:
(NH4)2C2O4 · H2O
CAS-Nummer:
6009-70-7
Molekulargewicht:
142.11
Beilstein:
3759830
EG-Nummer:
238-135-4
MDL-Nummer:
MFCD00149694
UNSPSC-Code:
12352300
PubChem Substanz-ID:
329752279
NACRES:
NB.24
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Qualität

ACS reagent

Dampfdruck

<0.1 hPa ( 20 °C)

Assay

≥99%
99.0-101.0% (ACS specification)

Form

crystalline powder
crystals or granules

Verunreinigungen

≤0.005% insolubles

Glührückstand

≤0.02%

pH-Wert

6-7 (25 °C, 14.2 g/L)

mp (Schmelzpunkt)

133 °C (dec.) (lit.)

Anionenspuren

chloride (Cl-): ≤0.002%
sulfate (SO42-): ≤0.002%

Kationenspuren

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

InChIKey

MSMNVXKYCPHLLN-UHFFFAOYSA-N

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Allgemeine Beschreibung

Ammonium oxalate monohydrate is a diammonium salt of oxalic acid. Its refined crystal structure has been investigated by three-dimensional diffraction studies.[1] 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.[2] Its space group and unit cell parameters have been analyzed by neutron diffraction studies.[3] Its IR spectra have been compared with that of isolated coal-solubilizing agent (CSA).[4]

Anwendung

Ammonium oxalate monohydrate may be used in the preparation of tetramethylammonium oxalate.[5]

Ähnliches Produkt

Produkt-Nr.
Beschreibung
Preisangaben

906794

Bis(neopentyltrimethylammonium) oxalate

Piktogramme

Exclamation mark
GHS07

Signalwort

Warning

H-Sätze

H302,H319

Gefahreneinstufungen

Acute Tox. 4 Oral - Eye Irrit. 2

Lagerklassenschlüssel

13 - Non Combustible Solids

WGK

WGK 1

Flammpunkt (°F)

Not applicable

Flammpunkt (°C)

Not applicable

Hier finden Sie alle aktuellen Versionen:

Analysenzertifikate (COA)

Lot/Batch Number
MKCX1516
MKCT1513
MKCT7709
MKCR5369
MKCR8864

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Die Dokumentenbibliothek aufrufen

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
A convenient method for preparation of quaternary ammonium salts.
Markowitz M.
The Journal of Organic Chemistry, 22(8), 983-984 (1957)
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
M S Cohen et al.
Applied and environmental microbiology, 56(11), 3285-3291 (1990-11-01)
Low-ranked coals were dissolved by using cell extracts derived from liquid cultures of Trametes versicolor. The coal-solubilizing agent (CSA) was separated from the broth components by a multistep isolation procedure including reverse-phase high-pressure liquid chromatography, size exclusion chromatography, ethanol fractionation
Effect of impurities on metastable zone width for the growth of ammonium oxalate monohydrate crystals from aqueous solutions.
Sangwal K and Mielniczek-Brzoska E.
Journal of Crystal Growth, 267(3), 662-675 (2004)
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  1. How is shipping temperature determined? And how is it related to the product storage temperature?

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    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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  2. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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