- Synonyms: Amylum, Potato starch - (C6H10O5)n - CAS [9005-84-9] - EINECS-No.: 232-686-4 - Solub. in water: (90 ºC): 50 g/l - Tariff number: 3505 10 90 00 - Applications: analytical chemistry, indicator (iodometric analyses), laboratory reagent, synthesis of organic products. SPECIFICATIONS pH (2 %, H2O): 5,0 - 7,0 solubility: passes test sensitivity to iodine: passes test residue on ignition: max. 1,5 % loss on drying (105 ºC): 10 - 20 %