40811-14-1

Basic information

• Product Name: Propane
• Synonyms: PROPANE
• CAS NO: 40811-14-1
• Molecular Formula: C₃H₆O₃S
• Molecular Weight: 44.1
• Mol File: 40811-14-1.mol
• Article Data: 8

Chemical Properties

• Appearance: /
• CAS DataBase Reference: Propane(CAS DataBase Reference)
• NIST Chemistry Reference: Propane(40811-14-1)
• EPA Substance Registry System: Propane(40811-14-1)

Safety Data

• RIDADR: UN 1978 2.1
• HazardClass: 2.1
• Hazardous Substances Data: 40811-14-1(Hazardous Substances Data)

Usage

Uses

Propane is an aerating agent used in combination with chloropenta- fluoroethane or octafluorocyclobutane as a propellant and aerating agent for foamed or sprayed foods.

Definition

Different sources of media describe the Definition of 40811-14-1 differently. You can refer to the following data:
1. A gaseous alkane obtained either from the gaseous fraction of crude oil or by the cracking of heavier fractions. The principal use of propane is as a fuel for heating and cooking, since it can be liquefied under pressure, stored in cylinders, and transported easily. Propane is the third member of the homologous series of alkanes.
2. propane: A colourless gaseous hydrocarbon,C3H8; m.p. –190°C; b.p.–42°C. It is the third member of thealkane series and is obtained from petroleum. Its main use is as bottledgas for fuel.

Upstream product

• 75-56-9 methyloxirane 
• 57-55-6 propylene glycol 

Downstream Products

• 5689-83-8 4-methyl-[1,3,2]dioxathiolane 2,2-dioxide 

Relevant articles and documents

A method for preparing [...] (by machine translation)

The invention relates to a method for preparing [...], comprising the following steps: S1. The nucleophilic substitution reaction: to propylene glycol and thionyl chloride as the starting material, chloroform as solvent, the nucleophilic substitution reaction, by the sulfurous acid propylene chloroform solution; S2. Oxidation reaction: high iodic acid as the oxidizing agent, the ruthenium trichloride hydrate catalyst, to S1 to obtain solution in the oxidation process is performed on the sulfurous acid propylene shall [...]; S3. The refined purification: sulfuric acid propylene crude soluble in chloroform, under the protection of nitrogen, heating to reflux is fully dissolved, then lower the temperature crystallization, filtering, filters the cake to pass through reduced-pressure drying, to obtain. The mild reaction conditions of the present invention, the synthetic process is simple, easy to operate, high safety, preparation cycle is short, the raw materials used are simple and easy to obtain, the cost is low, few by-products, the preparation of the product has high purity, low water content, low acid value of the product, the product yield is high, and is suitable for industrial production. (by machine translation)

Synthesis of cyclic sulfites from epoxides and sulfur dioxide with silica-immobilized homogeneous catalysts

Quaternary ammonium- and amino-functionalized silica catalysts have been prepared for the selective synthesis of cyclic sulfites from epoxides and sulfur dioxide, demonstrating the effects of immobilizing the homogeneous catalysts on silica. The cycloaddition of sulfur dioxide to various epoxides was conducted under solvent-free conditions at 100 °C. The quaternary ammonium- and amino-functionalized silica catalysts produced cyclic sulfites in high yields (79-96 %) that are comparable to those produced by the homogeneous catalysts. The functionalized silica catalysts could be separated from the product solution by filtration, thereby avoiding the catalytic decomposition of the cyclic sulfite products upon distillation of the product solution. Heterogenization of a homogeneous catalyst by immobilization can, therefore, improve the efficiency of the purification of crude reaction products. Despite a decrease in catalytic activity after each recycling step, the heterogeneous pyridine-functionalized silica catalyst provided high yields after as many as five recycling processes. Immobilized for crimes of pyrolysis: Quaternary ammonium- and amino-functionalized silica catalysts promote the cycloaddition of sulfur dioxide to epoxides to produce cyclic sulfites in high yields (79-96 %) that are comparable to those with the homogeneous catalysts. Separation of the functionalized silica catalyst from the product solution by filtration avoids pyrolysis of the cyclic sulfites during purification by distillation. Copyright

Synthesis of hydroxy sulfonate surfactants

The selective synthesis of sulfonate surfactants with side chains containing ether- and hydroxy groups was carried out using cyclic sulfates as epoxide analogues. The main chain was elaborated from 1,2-dodecane sulfate by the addition of various hydroxy/alkoxysulfonates. Ethyleneoxy- and 1,2-propyleneoxy- groups were introduced using ethylene sulfate and 1,2-propylene sulfate, respectively.