honestly, i have no idea about that. but, if i were you, i would do it to try it out. my suggestion, don't too much dependent on protocol. since natrium and kalium are the same type of alkali, perhaps it still work.

In ior lab, we work with two types and it did.

no, you can't change K to Na. Na salt with SDS not effectively precipitated, comparing to K-SDS salt.

Bimo Satrio thank you Bimo for your recommendation

Thank you Ashraf Abbas and Ruslan Kalendar for the recommendation

Ruslan Kalendar if Na-SDS salt would not be precipitated effectively, is it completely unusable or still can be used though the result is not as good as using CH3COOK? and how about what you did by using CH3COONa, Ashraf Abbas ?

thank you both :)

Potentially using CH3COONa for SDS precipitation in DNA extraction protocol is possible in case cooling the samples at the ice.