Explanatory notes
… bloedite, reussin, astrakhanite) are excluded ( heading 25.30 ). (b) Sodium hydrogen sulphate (acid sulphate) (NaHSO … excludes natural magnesium sulphate (kieserite) ( heading 25.30 ). (3) Aluminium sulphate (Al 2 (SO 4 ) 3 ). … Native strontium sulphate (celestine) is excluded ( heading 25.30 ). (12) Cadmium sulphate (CdSO 4 ). Colourless …