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[单选题]
对于W/(O/W)型乳状液膜萃取体系,表面活性剂的亲水亲油平衡值HLB选取范围为()。
A.8-15
B.6-8
C.3-
查看答案
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A.8-15
B.6-8
C.3-
A.制乳时必须控制适当的油内比
B.制备W/O型乳状液需要使用为水所润湿的容器
C.一般用于从水溶液中提取金属需要制备W/O型乳状液
D.一般先将表面活性剂加入油中混匀,再把水快速加入油中,加入时和加入后都要施加强烈搅拌
A.2-5 (W/O型);6-10 (O/W型)
B.4-9 (W/O型);8-10 (O/W型)
C.3-6 (W/O型);8-18 (O/W型)
D.3-8 (W/O型);6-10 (O/W型)
E.2-5 (W/O型);10-16 (O/W型)
A.2~5(W/O型);6~10(O/W型)
B.4~9(W/O型);8~10(O/W型)
C.3~8(W/O型);8~16(O/W型)
D.3~8(W/O型);6~10(O/W型)
E.2~5(W/O型);8~16(O/W型)