1. It can be synthesized from pyrogallol using zinc chloride and acetic anhydride. 2. Zinc chloride is caustic to the gastrointestinal tract, occasionally leading to hematemesis.3. Finally, the simplest method relies on treating the zinc chloride with thionyl chloride. 4. In some designs, the ammonium chloride is replaced by zinc chloride . 5. Elevating the aging temperature increases the crystallinity of basic zinc chloride . 6. The zinc chloride used in making vulcanized fibre swelled and gelatinized the cellulose. 7. Acid flux, also called zinc chloride flux, is used for most home jobs. 8. A variant uses zinc oxide with zinc chloride instead of the magnesium compounds. 9. Using zinc chloride , one must heat the reaction to 200-270 �C for 24hrs. 10. Common dehydrating agents include phosphorus pentoxide, anhydrides, or zinc chloride .
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