In article . com,
Dot Net Developer writes:
"bicarbonate of soda" and "soda crystals" -- are they the same thing/
product?

No.
"bicarbonate of soda" is Sodium Hydroden Carbonate.
"soda crystals" are Sodium Carbonate, IIRC.
"caustic soda" is Sodium Hydroxide.

Every few decades, chemists decide to change the way they name
compounds, so I might not be using the names taught in chemistry
lessons today. (Do they even have chemistry lessons today?)

--
Andrew Gabriel
[email address is not usable -- followup in the newsgroup]