Merck, 1004951000, Oxalic acid dihydrate

Name: Oxalic acid dihydrate
Brand: Merck
SKU: 1004951000

Size:1 kg, Oxalic acid dihydrate, Ethanedioic acid, for analysis EMSURE® ACS, ISO, Reag. Ph Eur

Catalog Number: 1004951000

Pricing

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Category

Organic Acids

Pack Size1 kg

TagsAnalytical Chemistry Analytical Reagents Acids

CollectionsMerck Analytical Reagents Collection Merck Cell Culture Supplements & Reagents: Complete Solutions for Research & Bioproduction Merck Roche Life Science Products for PCR, RT‑PCR & Nucleic Acid Purification

Description

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

Specifications

General

storage temp.
UNSPSC Code	12352106
EC Index Number	205-634-3
NACRES	NA.21
MDL number	MFCD00149102
SMILES string	[O+H3].[O+H3].[O-]C(=O)C(=O)[O-]
InChI	1S/C2H2O4.2H2O/c3-1(4)2(5)6;;/h(H,3,4)(H,5,6);2*1H2
InChI key	GEVPUGOOGXGPIO-UHFFFAOYSA-N
grade	ACS reagent
agency	reag. ISO
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
cation traces	Ca: ≤10 ppm

FAQs

Question: What grade is this oxalic acid dihydrate?

Answer:It is EMSURE analytical grade meeting ACS, ISO and Reag. Ph Eur requirements.

Question: What is the assay specification?

Answer:The assay is specified at 99.5–102.0% by manganometric determination.

Question: What package size is supplied?

Answer:This SKU contains 1 kg.

Application Note

Oxalic acid dihydrate is a high-purity analytical reagent supplied in the EMSURE® grade for laboratories that require controlled impurity limits and compendial or standards-based reagent quality. This 1 kg pack corresponds to ACS, ISO and Reag. Ph Eur requirements and has an assay specification of 99.5–102.0% by manganometric determination. The compound has the formula (COOH)₂·2H₂O and a molecular weight of 126.07. It is suitable for analytical solution preparation, acid-base and redox laboratory procedures, and other workflows that specify oxalic acid dihydrate of defined reagent quality. The solid is highly water soluble, supporting preparation of accurately controlled working solutions.

Ordering

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