The isomerization of 2-methyl 1-butylene(2MB1) to 2- methyl 2-butylene(2MB2) was carried out over a resin catalyst.
在酸性树脂催化剂上进行了2甲基1丁烯（2MB1）的异构化，得到了高2 甲基2 丁烯含量的异戊烯产品。
The toxicity of poly 1, 2-propylene adipate and poly 1, 3-butylene phthalate were determined by the acute toxicity tests.
通过急性经口毒性试验测定了己二酸聚1,2 -丙二醇酯和邻苯二甲酸聚1,3 -丁二醇酯的毒性。
The toxicity of poly 1, 2-propylene adipate and poly 1, 3-butylene phthalate were determined by the acute toxicity tests.
通过急性经口毒性试验测定了己二酸聚1,2 -丙二醇酯和邻苯二甲酸聚1,3 -丁二醇酯的毒性。
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