TARTRATE

A 'tartrate' is a salt or ester of the organic compound tartaric acid, a dicarboxylic acid. Its formula is O⁻OC-CH(OH)-CH(OH)-COO⁻ or C₄H₄O₆.
As food additives, tartrates are used as antioxidants. Examples are:

★ 'sodium tartrates' (E335)

★
★ monosodium tartrate

★
★ disodium tartrate

★ 'potassium tartrates' (E336)

★
★ monopotassium tartrate (cream of tartar)

★
★ dipotassium tartrate

★ 'potassium sodium tartrate' (E337)

★ 'calcium tartrate' (E354, used as emulsifier)

★ 'stearyl tartrate' (E483, used as emulsifier)

★ 'ergotamine tartrate'

★ 'silver tartrate'