61233-19-0

Basic information

• Product Name: Formaldehyde dimer
• Synonyms: Formaldehyde dimer
• CAS NO: 61233-19-0
• Molecular Formula: C2H4O2
• Molecular Weight: 60.05196
• Mol File: 61233-19-0.mol

Chemical Properties

• Boiling Point: 17.1°C at 760 mmHg
• Appearance: /
• Density: 1.131g/cm³
• Vapor Pressure: 1000mmHg at 25°C
• Refractive Index: 1.384
• CAS DataBase Reference: Formaldehyde dimer(CAS DataBase Reference)
• NIST Chemistry Reference: Formaldehyde dimer(61233-19-0)
• EPA Substance Registry System: Formaldehyde dimer(61233-19-0)

Safety Data

• Hazardous Substances Data: 61233-19-0(Hazardous Substances Data)

Usage

InChI:InChI=1/C2H4O2/c1-3-2-4-1/h1-2H2

Upstream product

• 75-21-8 oxirane 
• 74-85-1 ethene 
• 71-43-2 benzene 
• 186581-53-3 diazomethane 
• 98279-57-3 (4-oxo-4H-[1]pyridyloxy)-acetic acid 
• 60-29-7 diethyl ether 
• 110-86-1 pyridine 
• 616-39-7 N,N-diethylnmethylamine 
• 94-36-0 dibenzoyl peroxide 
• 106-98-9 1-butylene 
• 187737-37-7 propene 
• 64-17-5 ethanol 
• 6709-39-3 2,6-dimethyl-hepta-1,5-diene 
• 106-24-1 Geraniol 

Downstream Products

• 100617-78-5 4,5-Dimethyl-2-pyrrolidinomethyl-phenol 
• 124514-35-8 bis-(5-tert-butyl-4-hydroxy-2-methyl-3-pyrrolidinomethyl-phenyl)-sulfide 
• 69084-02-2 4-bromo-2-pyrrolidinomethyl-phenol 
• 101263-50-7 4-chloro-3,5-dimethyl-2-pyrrolidinomethyl-phenol 
• 102886-32-8 bis-(5-chloro-2-hydroxy-3-pyrrolidinomethyl-phenyl)-methane 
• 124141-44-2 2,2-bis-(4-hydroxy-3-methyl-5-pyrrolidinomethyl-phenyl)-propane 
• 102557-52-8 bis-(5-chloro-2-hydroxy-3-pyrrolidinomethyl-phenyl)-sulfide 
• 116282-91-8 2,2-bis-(4-hydroxy-3-isopropyl-5-pyrrolidinomethyl-phenyl)-propane 
• 104098-33-1 bis-(3-acetylamino-4-hydroxy-5-pyrrolidinomethyl-phenyl)-sulfone 
• 110054-09-6 1-(4-methoxy-phenyl)-3-pyrrolidino-propan-1-ol 
• 82965-17-1 4-chloro-2-pyrrolidinomethyl-phenol 
• 108875-93-0 1-(p-tolylmercapto-methyl)-pyrrolidine 
• 91349-49-4 3,4,6-trichloro-2-pyrrolidinomethyl-phenol 
• 14381-98-7 bis-(2,5-dimethyl-phenyl)-diazene-N-oxide 

Relevant articles and documents

Propylene glycol oxidation with hydrogen peroxide over Zr-containing metal-organic framework UiO-66

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A nonheme peroxo-diiron(iii) complex exhibiting both nucleophilic and electrophilic oxidation of organic substrates

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A chemiresistive methane sensor

A chemiresistive sensor is described for the detection of methane (CH4), a potent greenhouse gas that also poses an explosion hazard in air. The chemiresistor allows for the low-power, low-cost, and distributed sensing of CH4 at room temperature in air with environmental implications for gas leak detection in homes, production facilities, and pipelines. Specifically, the chemiresistors are based on single-walled carbon nanotubes (SWCNTs) noncovalently functionalized with poly(4-vinylpyridine) (P4VP) that enables the incorporation of a platinum-polyoxometalate (Pt-POM) CH4 oxidation precatalyst into the sensor by P4VP coordination. The resulting SWCNT-P4VP-Pt-POM composite showed ppm-level sensitivity to CH4 and good stability to air as well as time, wherein the generation of a high-valent platinum intermediate during CH4 oxidation is proposed as the origin of the observed chemiresistive response. The chemiresistor was found to exhibit selectivity for CH4 over heavier hydrocarbons such as n-hexane, benzene, toluene, and o-xylene, as well as gases, including carbon dioxide and hydrogen. The utility of the sensor in detecting CH4 using a simple handheld multimeter was also demonstrated.

Enhanced CO2 Conversion into Ethanol by Permanently Polarized Hydroxyapatite through C?C Coupling

Hydroxyapatite (HAp) is a naturally occurring mineral form of calcium apatite of biomedical importance due to its similarity with human hard tissues in morphology and composition. Upon polarization at high temperature, applying 3 kV/cm at 1000 °C, the resulting polarized HAp (p-HAp) exhibits enhanced catalytic behavior due charge accumulation at the interface. More specifically, p-HAp was found to catalyse the conversion of mixtures of CO2(g) and CH4(g) into low carbon organic molecules and into amino acids when N2(g) was added to the mixture. In this work, we report how p-HAp facilitates the conversion of CO2(g) mainly in ethanol by means of forming C?C coupled bonds on its activated surface. After evaluation of a wide range of experimental conditions, we evidence the production of formic acid, methanol and formaldehyde (C1 products); ethanol and acetic acid (C2 products); and acetone (C3 product) from CO2(g) using moderate reaction conditions. Moreover, optimization of the reaction parameters led to a significant increase towards ethanol.

AEROBIC ELECTROCATALYTIC OXIDATION OF HYDROCARBONS

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Photooxidation Reactions of Ethyl 2-Methylpropionate (E2MP) and Ethyl 2,2-Dimethylpropionate (E22DMP) Initiated by OH Radicals: An Experimental and Computational Study

The relative rate (RR) technique was used for the measurement of OH-initiated photooxidation reactions of ethyl 2-methylpropionate (E2MP) and ethyl 2,2-dimethylpropionate (E22DMP) in the temperature range of 268-363 K at 760 Torr. In addition to this, the

Sustainable acrolein production from bio-alcohols on spinel catalysts: Influence of magnesium substitution by various transition metals (Fe, Zn, Co, Cu, Mn)

Acrolein is a widely used intermediate of synthesis for value-added compounds in a number of domains of application. This work reports on the sustainable synthesis of acrolein by oxidative coupling of bio-alcohols, which constitutes a very promising alternative to fossil fuel-based production. The synthesis is performed in two sequential reactors, using an iron molybdate catalyst for oxidation and then a magnesium aluminate spinel where magnesium is partly or totally substituted by transition metals (Fe, Zn, Co, Cu, Mn) as a catalyst for cross-aldolization. The acid-base properties of the latter catalysts were determined using SO2 and NH3 adsorption microcalorimetry. Adsorption microcalorimetry was also used to study the adsorption properties of the reactants, with formaldehyde, acetaldehyde and propionaldehyde as probe molecules, and was complemented by a FT-IR investigation of reactant adsorption in order to better understand the mechanisms of adsorption and reaction. Acrolein production was found to be correlated to the ionic radius of the transition metals used in the catalysts, indicating that electronic effects are likely a factor influencing the acrolein production.

Bimetallic gold-silver catalysts based on ZnO and Zn/SBA-15 – The effect of various treatments on surface and catalytic properties

Two different supports containing zinc (ZnO and Zn/SBA-15) were used to prepare mono- and bimetallic gold, silver and gold-silver catalysts. Zinc was used for two different purposes in these materials: (i) as a support in the form of zinc oxide and (ii) as a dopant introduced to short-channel SBA-15 by wetness impregnation. Short channel SBA-15 was used as the reference support. The materials obtained were characterized by: N2 physisorption, XRD, TEM, UV–vis, XPS, XAS and their activity was tested in the reactions of propene and methanol oxidation in the gas phase. The state of metals (Au, Ag, Zn) and the composition of gold-silver alloy formed on the catalysts surface were considered in terms of thermal activation of catalysts in inert gas and in hydrogen flow as well as interaction with reagents and products of methanol and propene oxidation. It was found that silver species were responsible for the activity in propene oxidation and its total combustion to CO2, whereas (Au0)δ? metallic particles were active in methanol oxidation. Selectivity to acrolein in propene oxidation was achieved thanks to the presence of Au-Ag alloy whose composition depended on the presence of zinc oxide and activation conditions. The alloy was not stable and separated into metals upon propene oxidation conditions. In methanol oxidation, zinc species took part in selective oxidation to methyl formate.

Epoxidation of Ethylene with Products of Thermal Gas-Phase Oxidation of n-Butane

Abstract: Epoxidation of ethylene with the reactive products formed during thermal gas-phase oxidation of n-butane has been carried out under flow conditions with the separation of the zones of generation of radicals and their interaction with ethylene. Butane is oxidized in the first section of a two-section reactor, and ethylene is fed to the second section. It has been found that increasing the residence time of a butane–oxygen mixture in the first section of the reactor from 7 to 13 s increases the ethylene oxide accumulation rate. A further increase in the contact time leads to a decrease in the rate. Similarly, increasing the C4H10/O2 ratio in the range of 0.05–0.25 leads to an increase in the rate of accumulation of ethylene oxide. A further increase in this ratio decreases the rate of epoxidation. It has also been found that the temperature dependences of the ethylene oxide accumulation rate in both sections of the reactor pass through a maximum. The obtained data give evidence for the occurrence of the ethylene epoxidation reaction initiated by the n-butane oxidation products under the conditions when ethylene itself is slightly oxidized.

Visible-light-induced C-C bond cleavage of lignin model compounds with cyanobenziodoxolone

The catalytic degradation of lignin to value-added chemicals has received considerable attention over the past decade. Photocatalysis provides promising approaches to enable previously inaccessible transformations. However, examples of the visible-light promoted degradation of lignin are still limited. In this work, the visible-light-induced selective C-C bond cleavage of β-O-4 lignin model compounds has been disclosed via β-scission of in situ generated alkoxy radical intermediates. With cyanobenziodoxolone as the oxidant, a variety of substrates could be transformed into aldehydes in moderate to good yields. In addition, unexpected acetal esters which could conveniently furnish formaldehyde and phenols by alcoholysis were observed.