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Merck

221716

Sigma-Aldrich

Ammonium oxalate monohydrate

ACS reagent, ≥99%

Synonim(y):

Oxalic acid diammonium salt

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100 G
150,00 zł
500 G
382,00 zł
2.5 KG
2940,00 zł

About This Item

Wzór liniowy:
(NH4)2C2O4 · H2O
Numer CAS:
Masa cząsteczkowa:
142.11
Beilstein:
3759830
Numer WE:
Numer MDL:
Kod UNSPSC:
12352300
Identyfikator substancji w PubChem:
NACRES:
NB.24

150,00 zł


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klasa czystości

ACS reagent

ciśnienie pary

<0.1 hPa ( 20 °C)

Próba

≥99%
99.0-101.0% (ACS specification)

Formularz

crystalline powder
crystals or granules

zanieczyszczenia

≤0.005% insolubles

pozostałość po prażeniu

≤0.02%

pH

6-7 (25 °C, 14.2 g/L)

mp

133 °C (dec.) (lit.)

ślady anionów

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

ślady kationów

Fe: ≤2 ppm
heavy metals: ≤5 ppm (by ICP)

ciąg SMILES

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

Klucz InChI

MSMNVXKYCPHLLN-UHFFFAOYSA-N

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Opis ogólny

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]

Zastosowanie

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

Warning

Zwroty wskazujące rodzaj zagrożenia

Klasyfikacja zagrożeń

Acute Tox. 4 Oral - Eye Irrit. 2

Kod klasy składowania

13 - Non Combustible Solids

Klasa zagrożenia wodnego (WGK)

WGK 1

Temperatura zapłonu (°F)

Not applicable

Temperatura zapłonu (°C)

Not applicable


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Dokumenty związane z niedawno zakupionymi produktami zostały zamieszczone w Bibliotece dokumentów.

Odwiedź Bibliotekę dokumentów

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
Neutron diffraction study of ammonium oxalate monohydrate,(NH4)2C2O4.H2O.
Padmanabhan VM, et al.
Acta Crystallographica, 18(3), 567-568 (1965)

Questions

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    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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  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer
    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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