Is all this stuff the same ?

Washing soda = laundry soda = sal soda = scotch soda = soda crystals = sodium carbonate = Na2CO3

 

So many chemicals with multiple 'common' names

 

If yes; here in synonyms, sodium compounds are named, but the formula does not contain sodium ????

http://www.hmdb.ca/metabolites/HMDB03538

Edited January 22, 200917 yr by Externet
Added stuff

Yes, all those are the same compound that you list. Except Ive never seen it called scotch soda (sounds like something you'd order at a bar). I have no idea why they list all those sodium compounds in a profile on carbonic acid (basically CO2 in water).

 

This ambiguity and vast number of names is why chemists prefer Na2CO3. Anyone who knows their chem will know exactly what it is immediately. Perhaps they won't know half the common names though, and confusion could arise if it was reffered to by one.