又名 3-甲基-1-丁烯;α-异戊烯;异丙基乙烯; 英文名 3-methyl-1-butene 分子式 (CH3)2CHCH=CH2 分子量 70.14 CAS 563-45-1 性质 无色易挥发的液体,有不愉快的气味,不溶于水,溶于乙醇、乙醚、苯等多数有机溶剂。熔 点 -168.5℃ 沸点20℃。 相对密度(水=1)0.627; 闪点-57℃,折射率1.366。低闪点易燃液体。 用 途: 用于有机合成。
N-异丙基丙烯酰胺与聚乙烯醇的质量百分比分别为5%和25%。
The N-isopropylacrylamide and the polyvinyl alcohol are respectively 5 percent and 25percent by weight percent.
它们是乙烯,丙烯,异丁烷,环丁烷,丁烯类化合物三个,甲基乙基醚,乙基异丙基醚,乙酸乙酯。
Ten of them were identified. They are ethylene, propylene, isobutane, cyclobutane, three isomeric butenes, methyl ethyl ether, ethyl isopropyl ether, and ethyl acetate.
N-异丙基丙烯酰胺与聚乙烯醇的质量百分比为5%-25%。
The poly (N-isopropylacrylamide) and the polyvinyl alcohol are respectively 5 percent to 25percent by weight percent.
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