<Li> Potassium bromate (KBrO) for standardisation of sodium thiosulfate solutions </Li> <Li> Potassium hydrogen phthalate (usually called KHP) for standardisation of aqueous base and perchloric acid in acetic acid solutions </Li> <Li> Sodium carbonate for standardisation of aqueous acids: hydrochloric, sulfuric acid and nitric acid solutions (but not acetic acid) </Li> <Li> Sodium chloride for standardisation of silver nitrate solutions </Li>

Give the required properties of a primary standard solid. why does naoh not meet these requirements