MilliporeSigma
All Photos(1)

Documents

1.00495

Supelco

Oxalic acid dihydrate

for analysis EMSURE® ACS,ISO,Reag. Ph Eur

Sign Into View Organizational & Contract Pricing

Synonym(s):
Oxalic acid dihydrate, Ethanedioic acid
Linear Formula:
(COOH)2 · 2 H2O
CAS Number:
Molecular Weight:
126.07
MDL number:
EC Index Number:
205-634-3

grade

ACS reagent

Quality Level

agency

reag. ISO
reag. Ph. Eur.

vapor pressure

0.000312 hPa ( 25 °C)

product line

EMSURE®

assay

99.5-102.0% (manganometric)

form

solid

potency

375 mg/kg LD50, oral (Rat)

impurities

≤50 ppm Insoluble matter

ign. residue

≤100 ppm (as sulfate)

pH

1.5 (10 g/L in H2O)

bp

149-160 °C/1013 hPa (decomposition)

mp

98-100 °C

transition temp

flash point 157 °C (decomposition)

solubility

>100 g/L

density

1.65 g/cm3 at 20 °C

bulk density

813 kg/m3

anion traces

chloride (Cl-): ≤5 ppm
sulfate (SO42-): ≤50 ppm

cation traces

Ca: ≤10 ppm
Fe: ≤2 ppm
N: ≤10 ppm
heavy metals: ≤5 ppm
heavy metals (as Pb): ≤5 ppm

storage temp.

2-30°C

InChI

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

InChI key

GEVPUGOOGXGPIO-UHFFFAOYSA-N

Looking for similar products? Visit Product Comparison Guide

Related Categories

Application


  • In Situ Investigation of a Self-Accelerated Cocrystal Formation by Grinding Pyrazinamide with Oxalic Acid.: This study investigates the in situ cocrystal formation of pyrazinamide and oxalic acid dihydrate, emphasizing the self-accelerating nature of the process and its implications for pharmaceutical development (Kulla et al., 2016).

  • Deuterium MAS NMR studies of dynamics on multiple timescales: histidine and oxalic acid.: This article examines the dynamics of oxalic acid dihydrate and histidine using deuterium magnetic angle spinning nuclear magnetic resonance, providing insights into molecular motions on various timescales (Chan-Huot et al., 2015).

Analysis Note

Assay (manganometric): 99.5 - 102.0 %
Insoluble matter: ≤ 50 ppm
Chloride (Cl): ≤ 5 ppm
Sulfate (SO₄): ≤ 50 ppm
Total nitrogen (N): ≤ 10 ppm
Heavy metals (as Pb): ≤ 5 ppm
Heavy metals (ACS): ≤ 5 ppm
Ca (Calcium): ≤ 10 ppm
Fe (Iron): ≤ 2 ppm
Readily carbonisable substance: passes test
Residue on ignition (as sulfate): ≤ 100 ppm
Corresponds to ACS,ISO,Reag. Ph Eur

Legal Information

EMSURE is a registered trademark of Merck KGaA, Darmstadt, Germany

pictograms

CorrosionExclamation mark

signalword

Danger

Hazard Classifications

Acute Tox. 4 Dermal - Acute Tox. 4 Oral - Eye Dam. 1

Storage Class

11 - Combustible Solids

wgk_germany

WGK 1


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’.

Already Own This Product?

Documents related to the products that you have purchased in the past have been gathered in the Document Library for your convenience.

Visit the Document Library

Difficulty Finding Your Product Or Lot/Batch Number?

Product numbers are combined with Pack Sizes/Quantity when displayed on the website (example: T1503-25G). Please make sure you enter ONLY the product number in the Product Number field (example: T1503).

Example:

T1503
Product Number
-
25G
Pack Size/Quantity

Additional examples:

705578-5MG-PW

PL860-CGA/SHF-1EA

MMYOMAG-74K-13

1000309185

enter as 1.000309185)

Having trouble? Feel free to contact Technical Service for assistance.

Lot and Batch Numbers can be found on a product's label following the words 'Lot' or 'Batch'.

Aldrich Products

  • For a lot number such as TO09019TO, enter it as 09019TO (without the first two letters 'TO').

  • For a lot number with a filling-code such as 05427ES-021, enter it as 05427ES (without the filling-code '-021').

  • For a lot number with a filling-code such as STBB0728K9, enter it as STBB0728 without the filling-code 'K9'.

Not Finding What You Are Looking For?

In some cases, a COA may not be available online. If your search was unable to find the COA you can request one.

Request COA

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service