【Daily Question】10.30 True or False: n-Butylene is a raw material for the synthesis of cis-butyl rubber (+5)
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This post was last edited by Guan Gongyu on 2015-10-30 at 21:44. True or False: n-Butylene is a raw material for the synthesis of cis-butyl rubber ( ). Reply: +2; Correct answer: +5; Explanation: +8; Plus +10 for participating in the member survey form on my signature page
Butene is a raw material for synthesizing cis-butadiene rubber (Correct)
Butylene is a raw material for the synthesis of cis-butyl rubber (butylene is oxidized and dehydrogenated to produce butadiene, which is an important raw material for the synthesis of rubber, nylon, and resins). Over 90% of diborene used abroad is used in the production of cis-butadiene rubber
Wrong. Butadiene is a type of colorless gas with a distinctive odor. Slightly soluble in water, soluble in ethanol and methanol, readily soluble in propane, ether, chloroform, etc. It is a raw material for manufacturing synthetic rubber, synthetic resins, nylon, and so on. The production methods mainly include the dehydrogenation of butane and butylene, or it is obtained by separating from the C4 fraction. It is **viscous, particularly irritating to the mucous membranes, and prone to liquefaction. The critical temperature is 161.8, and the critical pressure is 4.26 megapascals. It forms explosive mixtures with air, with an explosion limit of 2.16–11.47%. As China continues to develop the industries that utilize butadiene, particularly with the rapid growth in rubber production capacity, the supply of butadiene can no longer meet the demands of the domestic market, resulting in a significant increase in the price of butadiene in China.
Butylene is a raw material for synthesizing cis-butadiene rubber (True)
Correct. n-Butylene is a raw material for the synthesis of sec-butanol and for the dehydration to produce butadiene. SBR is produced by the solution polymerization of butadiene.
Correct. --Butadiene is produced from n-butylene, which is then used to manufacture cis-butyl rubber.
Butene is a raw material for the synthesis of cis-butadiene (√). Butene is oxidized and dehydrogenated to produce butadiene, which is then used to synthesize cis-butadiene rubber
Butylene is a raw material for synthesizing cis-butadiene rubber (True)
Butene is a raw material for synthesizing cis-butadiene rubber (Correct)