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Cis-2-butene

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Product Specifications

Purity	99%
MolecularWeight	56.11
BoilingPoint	3.72°C
Density	2.46 kg/m³
VaporPressure	0.88 bar @0°C
FlammabilityRange	1.7-9.7%
SpecificVolume	0.407 m³/kg
Features	High purity, Versatile chemical, Wide applications, Reliable source, Cost-effective

Product Overview

Key Features

Company Details

Business Type

Manufacturer, Supplier

Employee Count

Establishment

2010

GST NO

19AAOCS4059G1ZW

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Seller Details

Special Gas & Equipment Solutions Pvt. Ltd.

GST - 19AAOCS4059G1ZW

Rating

Kolkata, West Bengal

Director

Mr. Saibal Basu

Address

Plot No. BJ- 133, Sector II, Salt Lake, near ICICI bank, Kolkata, West Bengal, 700091, India

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Product information
Quality code	2.0 .
Purity % volume	>=99
Impurities ppm
(where nothing else stated)
trans-2-Butene	0.5%
O₂	10
N₂	50
General information Filling pressure at 15 C, bar:	1.5
Material recommendations:	Gas: No restrictions
	Liquid: Avoid plastic and rubber.
Characteristics
Highly flammable, liquefied, colourless gas.

Health risks
Asphyxiating.

Transport
ADR Class 2, 3(b).

Physical data
Molecular weight:	56.11 56.11
Boiling point at 1.013 bar, C:	3.72
Density (1.013 bar, 15 C) kg/m3:	2.46
Vapour pressure at 0 C, bar:	0.88
20 C, bar:	1.8
Flammability range in air, % (volume):	1.7-9.7
Specific volume (1.013 bar, 15 C), m3/kg:	0.407

Source
Almost all commercially produced butenes are obtained as by-products catalytic or thermal cracking, refinery processes which upgrade high fractions to gasoline, and steam cracking, which produces light olefins for chemical feedstocks hydrocarbons derived from natural gas or crude oil.
The butenes obtained are withdrawn as a mixture from the C4-fraction. From this mixture butadiene and butanes are separated by extractive distillation. The remaining butenes cannot be separated by mere distillation because their boiling points are too close together.
In a first step iso-butene is isolated either by etherification with methanol to form methyl tert-butylether (MTB), or by hydrating iso-butene to tert-butanol (TBA). In this step all other C, components in the mixture remain unchanged. MTB and TEA can then be split by reversing synthesis to produce high purity iso-butene. Once the iso-butene content has been reduced, recovery of high purity 1-butene is possible by fractionation. The remaining 2-butenes can be separated by molecular sieve absorption methods.
Other commercial processes that are sometimes used to produce specific isomers or mixtures of butenes or both, either directly or as by-products, include: the oxirane process for making propylene oxide (-> iso-butene) the dehydrogenation of butane and iso-butane (-> 1-butene, cis-2-butene, trans-2- butene) the disproportionation of olefins (-> cis-2-butene, trans-2-butene) the oligomerization of ethylene (-> 1-butene). AU or any of them may become useful feedstock sources should the need arise.
Applications Applications cis-2-Butene is a member of the alkene group of hydrocarbons. Alkenes serve as intermedi- ates in the preparation of a variety of organic compounds. Sulfuric acid and sulfur dioxide react with alkenes to give alkyl hydrogen sulfates and alkyl sulfonates, respectively, many of which are useful as detergents. In the industrially important Oxo process, alkenes react catalytically with carbon monoxide and hydrogen to give aldehydes. Alkenes are polymer- ized by heating with catalysts to give high-octane gasolines, plastics, and synthetic rubber. Alkanes react with alkenes in the presence of catalysts to form motor fuels in a process known as alkylation. CIS-2-Butene is a chemical intermediate in the following processes: catalytic dehydrogenation to produce butadiene the addition of water by means of the acid sulfate leads to the formation of 2-butanol esterification in the presence of tungstic acid, followed by oxidation by oxygen or air, in the liquid phase, leads to the production of acetic acid acetic acid can also be produced through oxidation by oxygen or air in the presence of manganese acetate in the liquid phase condensation of iso-butane with butenes leads to the formation of 2,2,3-trimethyl pentane, a high octane fuel