制备O/W型乳剂若采用表面活性剂为乳化剂,适宜的表面活性剂HLB范围应为A:8~18B:7~9C:3~6D:15~18E:1~

作者: rantiku 人气: - 评论: 0
问题 制备O/W型乳剂若采用表面活性剂为乳化剂,适宜的表面活性剂HLB范围应为
选项 A:8~18 B:7~9 C:3~6 D:15~18 E:1~
答案 B
解析 此题重点考查表面活性剂的HLB值与其应用性质的关系。适合作O/W型乳剂的乳化剂表面活性剂的HLB值为7~9。所以本题答案应选择B。

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  • 消息: [程序异常] : MISCONF Redis is configured to save RDB snapshots, but it's currently unable to persist to disk. Commands that may modify the data set are disabled, because this instance is configured to report errors during writes if RDB snapshotting fails (stop-writes-on-bgsave-error option). Please check the Redis logs for details about the RDB error.
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  • 位置: 第 85 行
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