Sulphouric or Sulphauric: How To spell?

The word Sulphouric is misspelled against Sulphauric, an adjective meaning "pertaining to, designating, a hypothetical sulphacid gold (aurum), known only in its salts."

Word contains consecutive vowels 'AU' in between alphabets sulph & ric is misspelled as 'OU'
Wrong Spelling:  sulph-ou-ric 
Correct Spelling:  sulph-au-ric 
Check more misspelled words of Sulphauric to spell it correct.

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