This method has been applied to the determination of microamount of copper in aluminum alloys with sodium fluoride as a masking agent. 采用氟化钠作掩蔽剂,可不经分离,直接测定铝合金中的微量铜。
In aluminum industry, the molar ratio of sodium fluoride to aluminum fluoride is termed as cryolite ratio. 铝工业上把氟化钠对氟化铝的摩尔数之比称为分子比。