@murrayjames，

It's 散心 san4xin1.

散 has two sounds:

san3:

verb: to come loose; to fall apart 松song1散；懒lan3散

adjective: scattered 散乱

noun: Chinese medicine(in powder form) 散剂ji4

san4:

verb: to break up; to disperse; to distribute 散心；分散；散落luo4

-Grace