sodium hydrogen carbonate vs sodium bicarbonate

sodium hydrogen carbonate and sodium bicarbonate both are nouns.

Word	Noun	Adjective	Verb	Adverb
sodium hydrogen carbonate	Yes	No	No	No
sodium bicarbonate	Yes	No	No	No

As nouns, sodium hydrogen carbonate and sodium bicarbonate are synonyms defined as:

sodium hydrogen carbonate and sodium bicarbonate: a white soluble compound (NaHCO3) used in effervescent drinks and in baking powders and as an antacid

Other synonyms of sodium hydrogen carbonate include baking soda, bicarbonate of soda, saleratus.

sodium hydrogen carbonate (noun)	sodium bicarbonate (noun)
a white soluble compound (NaHCO3) used in effervescent drinks and in baking powders and as an antacid	a white soluble compound (NaHCO3) used in effervescent drinks and in baking powders and as an antacid