(12) Heading 9902.01.33 (relating to thionyl chloride). (13) Heading 9902.01.36 (relating to hydroxylamine free base). (14) Heading 9902.01.37 (relating to hydroxylamine sulphate). (15) Heading 9902.01.40 (relating to tin(IV) oxide). (16) Heading 9902.01.41 (relating to ammonium bifluoride). (17) Heading 9902.01.46 (relating to potassium bifluoride). (18) Heading 9902.01.52 (relating to cesium chloride). (19) Heading 9902.01.53 (relating to cesium iodide). (20) Heading 9902.01.54 (relating to sodium sulfides). (21) Heading 9902.01.55 (relating to sodium thiosulfate). (22) Heading 9902.01.57 (relating to sodium hypophosphite). (23) Heading 9902.01.58 (relating to monopotassium phosphate). (24) Heading 9902.01.59 (relating to ammonium polyphosphate). (25) Heading 9902.01.63 (relating to sodium ferrocyanide). (26) Heading 9902.01.68 (relating to sodium thiocyanate). (27) Heading 9902.01.69 (relating to silver sodium zirconium hydrogenphosphate). (28) Heading 9902.01.75 (relating to yttrium oxide). (29) Heading 9902.01.76 (relating to ytterbium trifluoride powder). (30) Heading 9902.01.77 (relating to titanium hydride). (31) Heading 9902.01.79 (relating to lithium aluminum hydride). (32) Heading 9902.01.81 (relating to n-butyl chloride). (33) Heading 9902.01.82 (relating to 1,6-dichlorohexane). (34) Heading 9902.01.83 (relating to allyl bromide). (35) Heading 9902.01.84 (relating to DCP). (36) Heading 9902.01.86 (relating to o-dichlorobenzene). (37) Heading 9902.01.89 (relating to 1,2,4-trichlorobenzene). (38) Heading 9902.01.91 (relating to o-chlorobenzyl chloride (oCBC)). (39) Heading 9902.01.92 (relating to dichlorotoluene). (40) Heading 9902.01.93 (relating to 2-chloro-6-fluorobenzylchloride). (41) Heading 9902.01.98 (relating to lithium p-styrenesulfonate). (42) Heading 9902.01.99 (relating to monomer used in water treatment). (43) Heading 9902.02.01 (relating to para toluene sulfonic acid). (44) Heading 9902.02.03 (relating to methanesulfonyl chloride). (45) Heading 9902.02.04 (relating to