powder from the chemistry kit with macro lens photographed in studio

acesulfame acid ammonia ammonium analytics background blue calcium carbonate chemical chemicals chemistry citric close closeup color copper corrosive cream danger dangerous design element environment fertilizer filings flammable green growth hazard hazardous health hexacyanoferrate hydroxide ice illustration industry iron label lacmus leaching lime liquid magnesium molecular molecule nartium natural nitrate nitrogen organic oxidation phosphate plant poison potash potassium powder reaction safety salt science sodium structure substance sulfate sweetener symbol toxic urea waste yellow