99932-75-9

Basic information

• Product Name: Anproline
• Synonyms: 1,2-Epoxyaethan [german];Aethylenoxid [german]
• CAS NO: 99932-75-9
• Molecular Formula: C2H4O
• Molecular Weight: 44.05256
• Mol File: 99932-75-9.mol

Chemical Properties

• Appearance: /
• CAS DataBase Reference: Anproline(CAS DataBase Reference)
• NIST Chemistry Reference: Anproline(99932-75-9)
• EPA Substance Registry System: Anproline(99932-75-9)

Safety Data

• Hazardous Substances Data: 99932-75-9(Hazardous Substances Data)

Usage

Uses

Used in Flavor and Fragrance Industry:
Anproline is used as a flavor and fragrance ingredient for its sweet odor. It is commonly used in the production of perfumes, colognes, and other scented products to provide a pleasant and appealing aroma.
Used in Pharmaceutical Industry:
Anproline is used as a building block in the synthesis of various pharmaceutical compounds. Its unique chemical structure allows it to be incorporated into a wide range of drug molecules, making it a valuable component in the development of new medications.
Used in Cosmetic Industry:
Anproline is used as a cosmetic ingredient for its moisturizing and skin conditioning properties. It helps to improve the texture and appearance of the skin, making it a popular ingredient in skincare products such as creams, lotions, and serums.
Used in Food and Beverage Industry:
Anproline is used as a flavor enhancer in the food and beverage industry. Its sweet taste can be used to improve the taste of various food products, such as baked goods, beverages, and confectionery items.
Used in Research and Development:
Anproline is used as a research chemical for the development of new compounds and materials. Its unique properties make it a valuable tool for scientists and researchers working in various fields, including chemistry, biology, and materials science.

Potential Exposure

Ethylene oxide is a man-made chemical used in the production of glycols (ethylene glycol, polyglycols, glycol ethers, esters), nontonic surface-active agent; ethanolamines, acrylonitrile, plastics. It is also used as a fumigant for foodstuffs and textiles; an agricultural fungicide; and for sterilization, especially for surgical instruments. It is used in drug synthesis and as a pesticide intermediate

Shipping

UN1040 Ethylene oxide or Ethylene oxide with nitrogen up to a total pressure of 1 MPa (10 bar) at 50℃, Hazard Class: 2.3; Labels: 2.3-Poisonous gas, 2.1- Flammable gas, Inhalation Hazard Zone D. Cylinders must be transported in a secure upright position, in a wellventilated truck. Protect cylinder and labels from physical damage. The owner of the compressed gas cylinder is the only entity allowed by federal law (49CFR) to transport and refill them. It is a violation of transportation regulations to refill compressed gas cylinders without the express written permission of the owner

Incompatibilities

May form explosive mixture with air. Chemically unstable. Dangerously reactive; may rearrange chemically and/or polymerize violently with evolution of heat; when in contact with highly active catalytic surfaces, such as anhydrous chlorides of iron, tin and aluminum; pure oxides of iron and aluminum; and alkali metal hydroxides. Even small amounts of strong acids; alkalis, or oxidizers can cause a reaction. Avoid contact with copper. Protect container from physical damage, sun and heat. Attacks some plastics, rubber or coatings.

Waste Disposal

Return refillable compressed gas cylinders to supplier. Concentrated waste containing no peroxides-discharge liquid at a controlled rate near a pilot flame. Concentrated waste containing peroxides-perforation of a container of the waste from a safe distance followed by open burning

Upstream product

• 96-49-1 [1,3]-dioxolan-2-one 
• 93-59-4 Perbenzoic acid 
• 74-85-1 ethene 
• 542-58-5 2-chloro-1-acetoxyethane 
• 107-07-3 2-chloro-ethanol 
• 930-22-3 epoxybutene 
• 2360-04-5 2-diphenylphosphinoethanol 
• 57-57-8 β-Propiolactone 
• 3547-33-9 3-thiaundecanol 
• 64-17-5 ethanol 
• 15464-01-4 azo-t-butane 
• 463-49-0 1,2-propanediene 
• 65275-32-3 2-(phenylselenyl)ethanol 
• 106-89-8 epichlorohydrin 

Downstream Products

• 18157-17-0 (2-chloroethoxy)trimethylsilane 
• 65869-15-0 3-((hydroxyethyl)(phenyl)amino)propan-1-ol 
• 41146-08-1 bis-{4-[bis-(2-hydroxy-ethyl)-amino]-phenyl}-disulfide 
• 6419-69-8 N-(2-hydroxyethyl)-4-chlorobenzenesulfonamide 
• 6419-70-1 4-chloro-benzenesulfonic acid-[bis-(2-hydroxy-ethyl)-amide] 
• 36245-26-8 1-(2-hydroxyethyl)-4-phenylpiperazine 
• 29269-89-4 2-((4-thiocyanatophenyl)amino)ethan-1-ol 
• 99841-22-2 4-[N,N-bis(2-hydroxyethyl)amino]benzenethiocyanate 
• 56949-66-7 1-(2-hydroxyethyl)-2-methoxy-4-(2-propenyl)benzene 
• 79916-16-8 acetic acid-{5-[bis-(2-hydroxy-ethyl)-amino]-2-hydroxy-anilide} 
• 99980-66-2 3-bromo-N,N-bis-(2-hydroxy-ethyl)-4-methyl-aniline 
• 60697-01-0 2-(2-(N-ethyl-N-phenylamino)ethoxy)ethanol 
• 60697-03-2 2-(2-(2-(ethyl(phenyl)amino)ethoxy)ethoxy)ethanol 
• 15070-88-9 3,3,3-triphenylpropan-1-ol 

Relevant articles and documents

PRODUCTION PROCESS OF ALKYLENE OXIDES FROM ALKYLENE CARBONATES

Catalytic process for producing alkylene epoxide, selected between ethylene oxide or propylene oxide, from the corresponding alkylene carbonate, selected between ethylene carbonate or propylene carbonate, comprising the decomposition reaction of alkylene carbonate, in the presence of sodium bromide as catalyst, in which: the reaction temperature is between 207 and 245°C, and the catalyst is in amounts comprised between 5x10-4 and 8x10-3 moles per mole of alkylene carbonate. This process can be carried out continuously. A further object of the invention is the modular plant which allows carrying out such a process.

PROCESS FOR PRODUCING ETHYLENE OXIDE FROM ETHANE BY OXIDATIVE DEHYDROGENATION AND EPOXIDATION WITH SPLIT RECYCLE

An ethylene oxide (EO) production process comprising (a) introducing a first reactant mixture (C2H6, O2) to a first reactor to produce a first effluent stream (C2H4,C2H6,O2); (b) introducing a second reactant mixture to a second reactor to produce a second effluent stream (EO, C2H4,C2H6,O2); wherein the second reactant mixture comprises at least a portion of first effluent stream; (c) separating the second effluent stream into an EO product stream (EO) and recycle stream (C2H4,C2H6,O2); wherein ethylene is not separated from recycle stream and/or first effluent stream; and (d) recycling a first portion of recycle stream to the first reactor, and a second portion of recycle stream to the second reactor; wherein recycle split ratio 0.6; and wherein recycle split ratio is defined as ratio of volumetric flowrate of first portion of recycle stream divided by the sum of volumetric flowrates of first portion and second portion of recycle stream.

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.

Chemical Behaviour of CaAg2 under Ethylene Epoxidation Conditions

The binary compound CaAg2 is examined as a catalyst for the ethylene epoxidation reaction. During the induction phase, conversion and selectivity increase and then remain stable for several hundred hours. The presence of ethyl chloride as a promoter is crucial. The pristine CaAg2 reacts with the gaseous reactants and forms a porous microstructure of calcium-containing oxidation products on the surface, in which particles of elemental silver are embedded. The microstructure is remarkably stable, and in particular, prevents further sintering of the silver particles.

CATALYST FOR THE OXIDATION OF ETHYLENE TO ETHYLENE OXIDE

The present invention is directed to a shaped catalyst body for preparing ethylene oxide, which comprises at least silver, cesium and rhenium applied to an alumina support, wherein the alumina support comprises Si, Ca, and Mg in a defined amount. Furthermore, the present invention is directed to a process for preparing the catalyst according to the present invention and process for preparing ethylene oxide by gas-phase oxidation of ethylene by means of oxygen in the presence of a shaped catalyst body according to the present invention.

Kinetics of Ethylene Epoxidation on a Promoted Ag/α-Al2O3 Catalyst—The Effects of Product and Chloride Co-Feeds on Rates and Selectivity

The overall chloriding effectiveness factor (Z*), defined as the ratio of ethyl chloride concentration in parts per million to the sum of ethylene and ethane concentration in mole percent multiplied by a weighting factor to account for their efficacy in removing chlorine-adatoms from the surface, was used as a parameter to account for the effects of chlorine on the kinetics of ethylene epoxidation on a highly promoted 35 wt % Ag/α-Al2O3 catalyst. An increase in O2 order (≈0.7 to 1) and a decrease in C2H4 order (≈0.5 to 2 activation on chloride-promoted silver catalysts. Carbon dioxide co-feed (1–5 mol %) was found to promote ethylene oxide selectivity as CO2 co-feed reversibly inhibits CO2 synthesis rates (?0.6 order) more than ethylene oxide synthesis rates (?0.49 order) at all Z* values. Ethylene oxide and CO2 rates were found to be invariant with ethylene oxide (0–0.5 mol %) and acetaldehyde (0–1.7 ppm) co-feeds, suggesting that there is minimal product inhibition under reaction conditions. A model involving a common reaction intermediate for ethylene oxide and carbon dioxide synthesis and two types of atomically adsorbed oxygen species—nucleophilic and electrophilic oxygen—is proposed to plausibly describe the observed reaction rate dependencies and selectivity trends as a function of the chloriding effectiveness.

METHODS FOR CONDITIONING AN ETHYLENE EPOXIDATION CATALYST AND ASSOCIATED METHODS FOR THE PRODUCTION OF ETHYLENE OXIDE

Methods for conditioning an ethylene epoxidation catalyst are provided. The conditioning methods comprise contacting an ethylene epoxidation catalyst comprising a carrier, having silver and a rhenium promoter deposited thereon, with a conditioning feed gas comprising oxygen for a period of time of at least 2 hours at a temperature that is above 180℃ and at most 250℃, wherein the contacting of the ethylene epoxidation catalyst with the conditioning feed gas occurs in an epoxidation reactor and in the absence of ethylene. Associated methods for the epoxidation of ethylene are also provided.

Chemical looping epoxidation

Chemical looping epoxidation of ethylene was demonstrated, whereby the sole oxidant was a solid oxygen carrier, 15 wt% Ag supported on SrFeO3. Ethylene reacted with a bed of carrier particles, without any O2(g) in the feed, to produc

Method for preparing halogen ethyl alcohol and ethylene oxide

The invention provides a method for preparing halogen ethyl alcohol. The method comprises the following step: (1) halogen alcoholization: adding halogen hydride, H2O2, ethylene and a Ti heteroatom-containing molecular sieve into a reaction device, and carrying out halogen alcoholization reaction to obtain the halogen ethyl alcohol. The invention also provides a method for preparing ethylene oxide with a halogenohydrin method. The method comprises the following steps: (1) halogen alcoholization: adding halogen hydride, H2O2, ethylene and a Ti heteroatom-containing molecular sieve into the reaction device, and carrying out the halogen alcoholization reaction to obtain the halogen ethyl alcohol; (2) saponification: carrying out saponification reaction on the halogen ethyl alcohol in the step (1) and a hydroxide of alkali metal, and separating to obtain the ethylene oxide and alkali halide metal salt; optionally (3) electroosmosis: carrying out bipolar membrane electroosmosis on alkali halide metal salt obtained in step (2) to obtain the hydroxide of alkali metal and the halogen hydride. According to the methods, the halogen ethyl alcohol or the ethylene oxide can be prepared at extremely high selectivity and yield, and the discharging of waste water and waste residues can be drastically lowered.

Ethylene Epoxidation at the Phase Transition of Copper Oxides

Catalytic materials tend to be metastable. When a material becomes metastable close to a thermodynamic phase transition it can exhibit unique catalytic behavior. Using in situ photoemission spectroscopy and online product analysis, we have found that close to the Cu2O-CuO phase transition there is a boost in activity for a kinetically driven reaction, ethylene epoxidation, giving rise to a 20-fold selectivity enhancement relative to the selectivity observed far from the phase transition. By tuning conditions toward low oxygen chemical potential, this metastable state and the resulting enhanced selectivity can be sustained. Using density functional theory, we find that metastable O precursors to the CuO phase can account for the selectivity enhancements near the phase transition.