the erlenmeyer or conical flask on bench laboratory, with green-purple solvent forming reaction between boric acid and ammonia.

acid ammonia analysis background bench blur bonding boric chemical chemistry clear closeup color complex compound concentration conical container determination development equipment erlenmeyer experiment flask focus forming glass glassware green greenpurple lab laboratory liquid liquor medical medicine nobody pharmaceutical purple range reaction research sample science scientific selective solution solvent table technical technique vessel volume waste water white